/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_5.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 02:17:25,577 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2022-02-09 02:17:25,695 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 02:17:25,727 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-09 02:17:25,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 02:17:25,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 02:17:25,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 02:17:25,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 02:17:25,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 02:17:25,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 02:17:25,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 02:17:25,729 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 02:17:25,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 02:17:25,730 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 02:17:25,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 02:17:25,730 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 02:17:25,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 02:17:25,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 02:17:25,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 02:17:25,731 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 02:17:25,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:17:25,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 02:17:25,733 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 02:17:25,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 02:17:25,734 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 02:17:25,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 02:17:26,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 02:17:26,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 02:17:26,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-09 02:17:26,021 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-09 02:17:26,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl
[2022-02-09 02:17:26,022 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl'
[2022-02-09 02:17:26,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 02:17:26,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-09 02:17:26,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 02:17:26,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 02:17:26,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 02:17:26,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,070 INFO L137 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-09 02:17:26,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 02:17:26,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 02:17:26,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 02:17:26,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 02:17:26,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 02:17:26,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 02:17:26,088 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 02:17:26,088 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 02:17:26,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/1) ...
[2022-02-09 02:17:26,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 02:17:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 02:17:26,124 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 02:17:26,137 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 02:17:26,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration
[2022-02-09 02:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_1
[2022-02-09 02:17:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1
[2022-02-09 02:17:26,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration
[2022-02-09 02:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_2
[2022-02-09 02:17:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2
[2022-02-09 02:17:26,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration
[2022-02-09 02:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_3
[2022-02-09 02:17:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3
[2022-02-09 02:17:26,162 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration
[2022-02-09 02:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_4
[2022-02-09 02:17:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4
[2022-02-09 02:17:26,162 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration
[2022-02-09 02:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_0
[2022-02-09 02:17:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0
[2022-02-09 02:17:26,162 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-09 02:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 02:17:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 02:17:26,164 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 02:17:26,205 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 02:17:26,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 02:17:26,289 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 02:17:26,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 02:17:26,296 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-09 02:17:26,297 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:26 BoogieIcfgContainer
[2022-02-09 02:17:26,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 02:17:26,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 02:17:26,303 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 02:17:26,306 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 02:17:26,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:17:26" (1/2) ...
[2022-02-09 02:17:26,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea4e1b and model type example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:17:26, skipping insertion in model container
[2022-02-09 02:17:26,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:26" (2/2) ...
[2022-02-09 02:17:26,309 INFO L111 eAbstractionObserver]: Analyzing ICFG example_5.bpl
[2022-02-09 02:17:26,318 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 02:17:26,318 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 02:17:26,318 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-09 02:17:26,318 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 02:17:26,379 INFO L148 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions.
[2022-02-09 02:17:26,435 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 02:17:26,443 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 02:17:26,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-02-09 02:17:26,457 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 48 transitions, 196 flow
[2022-02-09 02:17:26,602 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1146 states, 1145 states have (on average 3.708296943231441) internal successors, (4246), 1145 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 1146 states, 1145 states have (on average 3.708296943231441) internal successors, (4246), 1145 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:26,634 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:26,635 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]
[2022-02-09 02:17:26,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:26,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:26,640 INFO L85 PathProgramCache]: Analyzing trace with hash 921696585, now seen corresponding path program 1 times
[2022-02-09 02:17:26,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:26,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819051182]
[2022-02-09 02:17:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:26,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:26,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:26,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819051182]
[2022-02-09 02:17:26,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819051182] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:26,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:26,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:26,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118517138]
[2022-02-09 02:17:26,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:26,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:26,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:26,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:26,884 INFO L87 Difference]: Start difference. First operand has 1146 states, 1145 states have (on average 3.708296943231441) internal successors, (4246), 1145 states have internal predecessors, (4246), 0 states have call successors, (0), 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 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:27,014 INFO L93 Difference]: Finished difference Result 903 states and 3247 transitions.
[2022-02-09 02:17:27,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:27,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:27,043 INFO L225 Difference]: With dead ends: 903
[2022-02-09 02:17:27,043 INFO L226 Difference]: Without dead ends: 903
[2022-02-09 02:17:27,044 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 02:17:27,047 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:27,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 23 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states.
[2022-02-09 02:17:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903.
[2022-02-09 02:17:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 902 states have (on average 3.5997782705099777) internal successors, (3247), 902 states have internal predecessors, (3247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 3247 transitions.
[2022-02-09 02:17:27,206 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 3247 transitions. Word has length 21
[2022-02-09 02:17:27,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:27,207 INFO L470 AbstractCegarLoop]: Abstraction has 903 states and 3247 transitions.
[2022-02-09 02:17:27,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 3247 transitions.
[2022-02-09 02:17:27,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:27,212 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:27,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:27,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 02:17:27,212 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash 922619145, now seen corresponding path program 1 times
[2022-02-09 02:17:27,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:27,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582275539]
[2022-02-09 02:17:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:27,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:27,246 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 02:17:27,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:27,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582275539]
[2022-02-09 02:17:27,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582275539] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:27,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:27,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:27,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95128347]
[2022-02-09 02:17:27,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:27,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:27,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:27,250 INFO L87 Difference]: Start difference. First operand 903 states and 3247 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:27,287 INFO L93 Difference]: Finished difference Result 741 states and 2572 transitions.
[2022-02-09 02:17:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:27,293 INFO L225 Difference]: With dead ends: 741
[2022-02-09 02:17:27,294 INFO L226 Difference]: Without dead ends: 741
[2022-02-09 02:17:27,299 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 02:17:27,300 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:27,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 19 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:27,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states.
[2022-02-09 02:17:27,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741.
[2022-02-09 02:17:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 3.4756756756756757) internal successors, (2572), 740 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 2572 transitions.
[2022-02-09 02:17:27,342 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 2572 transitions. Word has length 21
[2022-02-09 02:17:27,342 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:27,342 INFO L470 AbstractCegarLoop]: Abstraction has 741 states and 2572 transitions.
[2022-02-09 02:17:27,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 2572 transitions.
[2022-02-09 02:17:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:27,345 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:27,345 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]
[2022-02-09 02:17:27,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-09 02:17:27,346 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash 923542635, now seen corresponding path program 1 times
[2022-02-09 02:17:27,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:27,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406012704]
[2022-02-09 02:17:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:27,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:27,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:27,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406012704]
[2022-02-09 02:17:27,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406012704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:27,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:27,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:27,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172737435]
[2022-02-09 02:17:27,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:27,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:27,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:27,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:27,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:27,382 INFO L87 Difference]: Start difference. First operand 741 states and 2572 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:27,426 INFO L93 Difference]: Finished difference Result 567 states and 1945 transitions.
[2022-02-09 02:17:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:27,430 INFO L225 Difference]: With dead ends: 567
[2022-02-09 02:17:27,430 INFO L226 Difference]: Without dead ends: 567
[2022-02-09 02:17:27,431 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 02:17:27,432 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:27,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states.
[2022-02-09 02:17:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567.
[2022-02-09 02:17:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 3.4363957597173145) internal successors, (1945), 566 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1945 transitions.
[2022-02-09 02:17:27,458 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1945 transitions. Word has length 21
[2022-02-09 02:17:27,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:27,459 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1945 transitions.
[2022-02-09 02:17:27,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1945 transitions.
[2022-02-09 02:17:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:27,461 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:27,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:27,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-09 02:17:27,462 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:27,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash 924406605, now seen corresponding path program 1 times
[2022-02-09 02:17:27,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:27,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026342597]
[2022-02-09 02:17:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:27,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:27,738 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 02:17:27,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:27,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026342597]
[2022-02-09 02:17:27,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026342597] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:27,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:27,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:27,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176549208]
[2022-02-09 02:17:27,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:27,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:27,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:27,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:27,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:27,742 INFO L87 Difference]: Start difference. First operand 567 states and 1945 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:27,928 INFO L93 Difference]: Finished difference Result 1267 states and 4072 transitions.
[2022-02-09 02:17:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:27,936 INFO L225 Difference]: With dead ends: 1267
[2022-02-09 02:17:27,937 INFO L226 Difference]: Without dead ends: 1133
[2022-02-09 02:17:27,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:27,946 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 82 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 102 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 02:17:27,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 102 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states.
[2022-02-09 02:17:27,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 616.
[2022-02-09 02:17:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 615 states have (on average 3.4) internal successors, (2091), 615 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 2091 transitions.
[2022-02-09 02:17:27,981 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 2091 transitions. Word has length 21
[2022-02-09 02:17:27,982 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:27,982 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 2091 transitions.
[2022-02-09 02:17:27,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 2091 transitions.
[2022-02-09 02:17:27,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:27,985 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:27,985 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]
[2022-02-09 02:17:27,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-09 02:17:27,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1025849041, now seen corresponding path program 2 times
[2022-02-09 02:17:27,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:27,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610772704]
[2022-02-09 02:17:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:27,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:28,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:28,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610772704]
[2022-02-09 02:17:28,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610772704] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:28,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:28,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:28,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218842393]
[2022-02-09 02:17:28,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:28,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:28,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:28,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:28,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:28,187 INFO L87 Difference]: Start difference. First operand 616 states and 2091 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:28,338 INFO L93 Difference]: Finished difference Result 1250 states and 3995 transitions.
[2022-02-09 02:17:28,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:28,347 INFO L225 Difference]: With dead ends: 1250
[2022-02-09 02:17:28,347 INFO L226 Difference]: Without dead ends: 1098
[2022-02-09 02:17:28,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:28,348 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 84 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 96 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 02:17:28,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 96 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:28,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states.
[2022-02-09 02:17:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 581.
[2022-02-09 02:17:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 3.420689655172414) internal successors, (1984), 580 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1984 transitions.
[2022-02-09 02:17:28,373 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1984 transitions. Word has length 21
[2022-02-09 02:17:28,373 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:28,374 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1984 transitions.
[2022-02-09 02:17:28,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1984 transitions.
[2022-02-09 02:17:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:28,376 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:28,376 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]
[2022-02-09 02:17:28,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-09 02:17:28,376 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1173110165, now seen corresponding path program 3 times
[2022-02-09 02:17:28,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:28,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844872857]
[2022-02-09 02:17:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:28,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:28,524 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 02:17:28,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:28,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844872857]
[2022-02-09 02:17:28,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844872857] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:28,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:28,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:28,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493211581]
[2022-02-09 02:17:28,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:28,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:28,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:28,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:28,526 INFO L87 Difference]: Start difference. First operand 581 states and 1984 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:28,714 INFO L93 Difference]: Finished difference Result 1207 states and 3862 transitions.
[2022-02-09 02:17:28,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:28,722 INFO L225 Difference]: With dead ends: 1207
[2022-02-09 02:17:28,723 INFO L226 Difference]: Without dead ends: 1104
[2022-02-09 02:17:28,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:28,723 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 81 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 110 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 02:17:28,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 110 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states.
[2022-02-09 02:17:28,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 601.
[2022-02-09 02:17:28,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 600 states have (on average 3.4066666666666667) internal successors, (2044), 600 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 2044 transitions.
[2022-02-09 02:17:28,773 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 2044 transitions. Word has length 21
[2022-02-09 02:17:28,773 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:28,773 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 2044 transitions.
[2022-02-09 02:17:28,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 2044 transitions.
[2022-02-09 02:17:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:28,777 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:28,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:28,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-09 02:17:28,778 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1256430157, now seen corresponding path program 4 times
[2022-02-09 02:17:28,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:28,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097732489]
[2022-02-09 02:17:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:28,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:28,935 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 02:17:28,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:28,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097732489]
[2022-02-09 02:17:28,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097732489] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:28,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:28,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:28,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656269299]
[2022-02-09 02:17:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:28,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:28,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:28,936 INFO L87 Difference]: Start difference. First operand 601 states and 2044 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:29,056 INFO L93 Difference]: Finished difference Result 1238 states and 3949 transitions.
[2022-02-09 02:17:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:29,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:29,065 INFO L225 Difference]: With dead ends: 1238
[2022-02-09 02:17:29,065 INFO L226 Difference]: Without dead ends: 1084
[2022-02-09 02:17:29,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:29,067 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 82 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 107 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 02:17:29,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 107 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states.
[2022-02-09 02:17:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 581.
[2022-02-09 02:17:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 3.4034482758620688) internal successors, (1974), 580 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1974 transitions.
[2022-02-09 02:17:29,091 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1974 transitions. Word has length 21
[2022-02-09 02:17:29,091 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:29,091 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1974 transitions.
[2022-02-09 02:17:29,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1974 transitions.
[2022-02-09 02:17:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:29,093 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:29,093 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]
[2022-02-09 02:17:29,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-09 02:17:29,094 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1531922381, now seen corresponding path program 5 times
[2022-02-09 02:17:29,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:29,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073638702]
[2022-02-09 02:17:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:29,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:29,242 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 02:17:29,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:29,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073638702]
[2022-02-09 02:17:29,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073638702] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:29,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:29,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:29,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716337058]
[2022-02-09 02:17:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:29,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:29,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:29,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:29,244 INFO L87 Difference]: Start difference. First operand 581 states and 1974 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:29,370 INFO L93 Difference]: Finished difference Result 1182 states and 3774 transitions.
[2022-02-09 02:17:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:29,378 INFO L225 Difference]: With dead ends: 1182
[2022-02-09 02:17:29,378 INFO L226 Difference]: Without dead ends: 1079
[2022-02-09 02:17:29,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:29,379 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 95 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 90 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 02:17:29,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 90 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states.
[2022-02-09 02:17:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 593.
[2022-02-09 02:17:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 592 states have (on average 3.3885135135135136) internal successors, (2006), 592 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 2006 transitions.
[2022-02-09 02:17:29,406 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 2006 transitions. Word has length 21
[2022-02-09 02:17:29,407 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:29,407 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 2006 transitions.
[2022-02-09 02:17:29,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,408 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 2006 transitions.
[2022-02-09 02:17:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:29,410 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:29,411 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]
[2022-02-09 02:17:29,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-09 02:17:29,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:29,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:29,414 INFO L85 PathProgramCache]: Analyzing trace with hash 598806989, now seen corresponding path program 6 times
[2022-02-09 02:17:29,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:29,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136854447]
[2022-02-09 02:17:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:29,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:29,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:29,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136854447]
[2022-02-09 02:17:29,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136854447] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:29,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:29,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:29,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885094574]
[2022-02-09 02:17:29,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:29,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:29,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:29,540 INFO L87 Difference]: Start difference. First operand 593 states and 2006 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:29,677 INFO L93 Difference]: Finished difference Result 1196 states and 3811 transitions.
[2022-02-09 02:17:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:29,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:29,685 INFO L225 Difference]: With dead ends: 1196
[2022-02-09 02:17:29,685 INFO L226 Difference]: Without dead ends: 1053
[2022-02-09 02:17:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:29,686 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 77 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 110 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 02:17:29,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 110 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states.
[2022-02-09 02:17:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 567.
[2022-02-09 02:17:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 3.4240282685512367) internal successors, (1938), 566 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1938 transitions.
[2022-02-09 02:17:29,712 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1938 transitions. Word has length 21
[2022-02-09 02:17:29,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:29,712 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1938 transitions.
[2022-02-09 02:17:29,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1938 transitions.
[2022-02-09 02:17:29,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:29,714 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:29,714 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]
[2022-02-09 02:17:29,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-02-09 02:17:29,715 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:29,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1078752725, now seen corresponding path program 7 times
[2022-02-09 02:17:29,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:29,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187570259]
[2022-02-09 02:17:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:29,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:29,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:29,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187570259]
[2022-02-09 02:17:29,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187570259] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:29,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:29,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:29,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623786819]
[2022-02-09 02:17:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:29,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:29,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:29,854 INFO L87 Difference]: Start difference. First operand 567 states and 1938 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:29,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:29,977 INFO L93 Difference]: Finished difference Result 1298 states and 4181 transitions.
[2022-02-09 02:17:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:29,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:29,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:29,987 INFO L225 Difference]: With dead ends: 1298
[2022-02-09 02:17:29,987 INFO L226 Difference]: Without dead ends: 1164
[2022-02-09 02:17:29,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:29,988 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 95 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 02:17:29,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 95 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states.
[2022-02-09 02:17:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 623.
[2022-02-09 02:17:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 622 states have (on average 3.3858520900321545) internal successors, (2106), 622 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 2106 transitions.
[2022-02-09 02:17:30,020 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 2106 transitions. Word has length 21
[2022-02-09 02:17:30,020 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:30,020 INFO L470 AbstractCegarLoop]: Abstraction has 623 states and 2106 transitions.
[2022-02-09 02:17:30,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 2106 transitions.
[2022-02-09 02:17:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:30,023 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:30,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:30,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-02-09 02:17:30,024 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1265958925, now seen corresponding path program 8 times
[2022-02-09 02:17:30,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:30,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444161498]
[2022-02-09 02:17:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:30,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:30,181 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 02:17:30,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:30,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444161498]
[2022-02-09 02:17:30,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444161498] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:30,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:30,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:30,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664484510]
[2022-02-09 02:17:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:30,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:30,183 INFO L87 Difference]: Start difference. First operand 623 states and 2106 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:30,320 INFO L93 Difference]: Finished difference Result 1281 states and 4104 transitions.
[2022-02-09 02:17:30,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:30,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:30,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:30,329 INFO L225 Difference]: With dead ends: 1281
[2022-02-09 02:17:30,329 INFO L226 Difference]: Without dead ends: 1129
[2022-02-09 02:17:30,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:30,330 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 78 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 107 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 02:17:30,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 107 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states.
[2022-02-09 02:17:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 588.
[2022-02-09 02:17:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 587 states have (on average 3.4003407155025553) internal successors, (1996), 587 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 1996 transitions.
[2022-02-09 02:17:30,355 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 1996 transitions. Word has length 21
[2022-02-09 02:17:30,356 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:30,356 INFO L470 AbstractCegarLoop]: Abstraction has 588 states and 1996 transitions.
[2022-02-09 02:17:30,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 1996 transitions.
[2022-02-09 02:17:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:30,358 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:30,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:30,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-02-09 02:17:30,358 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 560967501, now seen corresponding path program 9 times
[2022-02-09 02:17:30,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:30,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857318708]
[2022-02-09 02:17:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:30,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:30,498 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 02:17:30,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:30,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857318708]
[2022-02-09 02:17:30,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857318708] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:30,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:30,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:30,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087728185]
[2022-02-09 02:17:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:30,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:30,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:30,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:30,500 INFO L87 Difference]: Start difference. First operand 588 states and 1996 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:30,600 INFO L93 Difference]: Finished difference Result 1287 states and 4136 transitions.
[2022-02-09 02:17:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:30,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:30,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:30,608 INFO L225 Difference]: With dead ends: 1287
[2022-02-09 02:17:30,608 INFO L226 Difference]: Without dead ends: 1153
[2022-02-09 02:17:30,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:30,609 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 95 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 02:17:30,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 95 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:30,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states.
[2022-02-09 02:17:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 614.
[2022-02-09 02:17:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 613 states have (on average 3.3719412724306688) internal successors, (2067), 613 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 2067 transitions.
[2022-02-09 02:17:30,631 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 2067 transitions. Word has length 21
[2022-02-09 02:17:30,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:30,631 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 2067 transitions.
[2022-02-09 02:17:30,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 2067 transitions.
[2022-02-09 02:17:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:30,633 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:30,634 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]
[2022-02-09 02:17:30,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-02-09 02:17:30,634 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:30,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -456976563, now seen corresponding path program 10 times
[2022-02-09 02:17:30,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:30,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541067196]
[2022-02-09 02:17:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:30,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:30,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:30,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541067196]
[2022-02-09 02:17:30,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541067196] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:30,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:30,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:30,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915596553]
[2022-02-09 02:17:30,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:30,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:30,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:30,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:30,750 INFO L87 Difference]: Start difference. First operand 614 states and 2067 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:30,881 INFO L93 Difference]: Finished difference Result 1268 states and 4055 transitions.
[2022-02-09 02:17:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:30,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:30,889 INFO L225 Difference]: With dead ends: 1268
[2022-02-09 02:17:30,889 INFO L226 Difference]: Without dead ends: 1127
[2022-02-09 02:17:30,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:30,890 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 104 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 02:17:30,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 104 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states.
[2022-02-09 02:17:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 588.
[2022-02-09 02:17:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 587 states have (on average 3.3781942078364566) internal successors, (1983), 587 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 1983 transitions.
[2022-02-09 02:17:30,911 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 1983 transitions. Word has length 21
[2022-02-09 02:17:30,911 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:30,911 INFO L470 AbstractCegarLoop]: Abstraction has 588 states and 1983 transitions.
[2022-02-09 02:17:30,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 1983 transitions.
[2022-02-09 02:17:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:30,913 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:30,913 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]
[2022-02-09 02:17:30,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-02-09 02:17:30,913 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1368281937, now seen corresponding path program 11 times
[2022-02-09 02:17:30,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:30,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380248069]
[2022-02-09 02:17:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:30,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:31,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:31,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380248069]
[2022-02-09 02:17:31,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380248069] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:31,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:31,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:31,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110521766]
[2022-02-09 02:17:31,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:31,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:31,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:31,026 INFO L87 Difference]: Start difference. First operand 588 states and 1983 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:31,130 INFO L93 Difference]: Finished difference Result 1245 states and 3995 transitions.
[2022-02-09 02:17:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:31,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:31,152 INFO L225 Difference]: With dead ends: 1245
[2022-02-09 02:17:31,152 INFO L226 Difference]: Without dead ends: 1128
[2022-02-09 02:17:31,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:31,153 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 86 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 95 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 02:17:31,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 95 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states.
[2022-02-09 02:17:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 606.
[2022-02-09 02:17:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 605 states have (on average 3.3619834710743803) internal successors, (2034), 605 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 2034 transitions.
[2022-02-09 02:17:31,175 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 2034 transitions. Word has length 21
[2022-02-09 02:17:31,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:31,175 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 2034 transitions.
[2022-02-09 02:17:31,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 2034 transitions.
[2022-02-09 02:17:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:31,177 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:31,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:31,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-02-09 02:17:31,177 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1696664819, now seen corresponding path program 12 times
[2022-02-09 02:17:31,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:31,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661569408]
[2022-02-09 02:17:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:31,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:31,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:31,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:31,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661569408]
[2022-02-09 02:17:31,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661569408] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:31,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:31,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:31,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692356570]
[2022-02-09 02:17:31,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:31,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:31,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:31,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:31,300 INFO L87 Difference]: Start difference. First operand 606 states and 2034 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:31,426 INFO L93 Difference]: Finished difference Result 1243 states and 3972 transitions.
[2022-02-09 02:17:31,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:31,431 INFO L225 Difference]: With dead ends: 1243
[2022-02-09 02:17:31,431 INFO L226 Difference]: Without dead ends: 1089
[2022-02-09 02:17:31,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:31,432 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 81 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 99 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 02:17:31,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 99 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states.
[2022-02-09 02:17:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 567.
[2022-02-09 02:17:31,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 3.408127208480565) internal successors, (1929), 566 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1929 transitions.
[2022-02-09 02:17:31,475 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1929 transitions. Word has length 21
[2022-02-09 02:17:31,475 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:31,475 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1929 transitions.
[2022-02-09 02:17:31,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1929 transitions.
[2022-02-09 02:17:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:31,477 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:31,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:31,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-02-09 02:17:31,477 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash 467668587, now seen corresponding path program 13 times
[2022-02-09 02:17:31,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:31,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193417070]
[2022-02-09 02:17:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:31,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:31,594 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 02:17:31,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:31,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193417070]
[2022-02-09 02:17:31,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193417070] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:31,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:31,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:31,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198822102]
[2022-02-09 02:17:31,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:31,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:31,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:31,596 INFO L87 Difference]: Start difference. First operand 567 states and 1929 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:31,727 INFO L93 Difference]: Finished difference Result 1192 states and 3820 transitions.
[2022-02-09 02:17:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:31,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:31,731 INFO L225 Difference]: With dead ends: 1192
[2022-02-09 02:17:31,731 INFO L226 Difference]: Without dead ends: 1089
[2022-02-09 02:17:31,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:31,731 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 82 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 111 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 02:17:31,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 111 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states.
[2022-02-09 02:17:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 597.
[2022-02-09 02:17:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 3.4060402684563758) internal successors, (2030), 596 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 2030 transitions.
[2022-02-09 02:17:31,755 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 2030 transitions. Word has length 21
[2022-02-09 02:17:31,755 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:31,755 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 2030 transitions.
[2022-02-09 02:17:31,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 2030 transitions.
[2022-02-09 02:17:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:31,757 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:31,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:31,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-02-09 02:17:31,758 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1397758387, now seen corresponding path program 14 times
[2022-02-09 02:17:31,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:31,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903158250]
[2022-02-09 02:17:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:31,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:31,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:31,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903158250]
[2022-02-09 02:17:31,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903158250] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:31,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:31,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:31,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144968062]
[2022-02-09 02:17:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:31,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:31,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:31,872 INFO L87 Difference]: Start difference. First operand 597 states and 2030 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,002 INFO L93 Difference]: Finished difference Result 1223 states and 3907 transitions.
[2022-02-09 02:17:32,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:32,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:32,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,007 INFO L225 Difference]: With dead ends: 1223
[2022-02-09 02:17:32,007 INFO L226 Difference]: Without dead ends: 1069
[2022-02-09 02:17:32,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:32,009 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 80 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 108 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 02:17:32,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 108 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states.
[2022-02-09 02:17:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 577.
[2022-02-09 02:17:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 576 states have (on average 3.4027777777777777) internal successors, (1960), 576 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1960 transitions.
[2022-02-09 02:17:32,039 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1960 transitions. Word has length 21
[2022-02-09 02:17:32,039 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,039 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 1960 transitions.
[2022-02-09 02:17:32,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1960 transitions.
[2022-02-09 02:17:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:32,041 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,041 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]
[2022-02-09 02:17:32,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-02-09 02:17:32,042 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1475966571, now seen corresponding path program 15 times
[2022-02-09 02:17:32,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286956004]
[2022-02-09 02:17:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:32,169 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 02:17:32,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:32,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286956004]
[2022-02-09 02:17:32,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286956004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:32,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:32,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:32,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452153642]
[2022-02-09 02:17:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:32,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:32,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:32,171 INFO L87 Difference]: Start difference. First operand 577 states and 1960 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,282 INFO L93 Difference]: Finished difference Result 1165 states and 3727 transitions.
[2022-02-09 02:17:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:32,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:32,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,286 INFO L225 Difference]: With dead ends: 1165
[2022-02-09 02:17:32,286 INFO L226 Difference]: Without dead ends: 1062
[2022-02-09 02:17:32,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:32,287 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 82 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 106 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 02:17:32,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 106 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states.
[2022-02-09 02:17:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 589.
[2022-02-09 02:17:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 588 states have (on average 3.3877551020408165) internal successors, (1992), 588 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 1992 transitions.
[2022-02-09 02:17:32,308 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 1992 transitions. Word has length 21
[2022-02-09 02:17:32,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,308 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 1992 transitions.
[2022-02-09 02:17:32,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 1992 transitions.
[2022-02-09 02:17:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:32,310 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,310 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]
[2022-02-09 02:17:32,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-02-09 02:17:32,311 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash -135778197, now seen corresponding path program 16 times
[2022-02-09 02:17:32,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522403086]
[2022-02-09 02:17:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:32,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:32,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522403086]
[2022-02-09 02:17:32,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522403086] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:32,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:32,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:32,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681412130]
[2022-02-09 02:17:32,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:32,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:32,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:32,433 INFO L87 Difference]: Start difference. First operand 589 states and 1992 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,598 INFO L93 Difference]: Finished difference Result 1177 states and 3759 transitions.
[2022-02-09 02:17:32,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:32,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,603 INFO L225 Difference]: With dead ends: 1177
[2022-02-09 02:17:32,603 INFO L226 Difference]: Without dead ends: 1050
[2022-02-09 02:17:32,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:32,604 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 95 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 02:17:32,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 95 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states.
[2022-02-09 02:17:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 577.
[2022-02-09 02:17:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 576 states have (on average 3.392361111111111) internal successors, (1954), 576 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1954 transitions.
[2022-02-09 02:17:32,622 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1954 transitions. Word has length 21
[2022-02-09 02:17:32,622 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,622 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 1954 transitions.
[2022-02-09 02:17:32,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1954 transitions.
[2022-02-09 02:17:32,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:32,624 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,624 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]
[2022-02-09 02:17:32,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-02-09 02:17:32,624 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,624 INFO L85 PathProgramCache]: Analyzing trace with hash -452479027, now seen corresponding path program 17 times
[2022-02-09 02:17:32,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731265029]
[2022-02-09 02:17:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:32,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:32,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731265029]
[2022-02-09 02:17:32,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731265029] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:32,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:32,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:32,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687336718]
[2022-02-09 02:17:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:32,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:32,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:32,753 INFO L87 Difference]: Start difference. First operand 577 states and 1954 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:32,866 INFO L93 Difference]: Finished difference Result 1241 states and 3972 transitions.
[2022-02-09 02:17:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:32,870 INFO L225 Difference]: With dead ends: 1241
[2022-02-09 02:17:32,871 INFO L226 Difference]: Without dead ends: 1107
[2022-02-09 02:17:32,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:32,871 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 80 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 103 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 02:17:32,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 103 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states.
[2022-02-09 02:17:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 603.
[2022-02-09 02:17:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 602 states have (on average 3.3637873754152823) internal successors, (2025), 602 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call 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 L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 2025 transitions.
[2022-02-09 02:17:32,896 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 2025 transitions. Word has length 21
[2022-02-09 02:17:32,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:32,896 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 2025 transitions.
[2022-02-09 02:17:32,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 2025 transitions.
[2022-02-09 02:17:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:32,898 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:32,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:32,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-02-09 02:17:32,898 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash -364542293, now seen corresponding path program 18 times
[2022-02-09 02:17:32,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:32,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333330573]
[2022-02-09 02:17:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:32,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:33,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333330573]
[2022-02-09 02:17:33,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333330573] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:33,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762199435]
[2022-02-09 02:17:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:33,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:33,023 INFO L87 Difference]: Start difference. First operand 603 states and 2025 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,156 INFO L93 Difference]: Finished difference Result 1222 states and 3891 transitions.
[2022-02-09 02:17:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,161 INFO L225 Difference]: With dead ends: 1222
[2022-02-09 02:17:33,161 INFO L226 Difference]: Without dead ends: 1071
[2022-02-09 02:17:33,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:33,162 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 78 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 110 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 02:17:33,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 110 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states.
[2022-02-09 02:17:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 567.
[2022-02-09 02:17:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 3.3992932862190814) internal successors, (1924), 566 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1924 transitions.
[2022-02-09 02:17:33,182 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1924 transitions. Word has length 21
[2022-02-09 02:17:33,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,182 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1924 transitions.
[2022-02-09 02:17:33,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1924 transitions.
[2022-02-09 02:17:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:33,184 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-02-09 02:17:33,184 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:33,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1884830541, now seen corresponding path program 19 times
[2022-02-09 02:17:33,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593533611]
[2022-02-09 02:17:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:33,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593533611]
[2022-02-09 02:17:33,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593533611] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:33,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724111975]
[2022-02-09 02:17:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:33,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:33,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:33,308 INFO L87 Difference]: Start difference. First operand 567 states and 1924 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,421 INFO L93 Difference]: Finished difference Result 1130 states and 3615 transitions.
[2022-02-09 02:17:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:33,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,426 INFO L225 Difference]: With dead ends: 1130
[2022-02-09 02:17:33,426 INFO L226 Difference]: Without dead ends: 1027
[2022-02-09 02:17:33,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:33,427 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 90 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 95 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 02:17:33,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 95 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states.
[2022-02-09 02:17:33,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 585.
[2022-02-09 02:17:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 3.392123287671233) internal successors, (1981), 584 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1981 transitions.
[2022-02-09 02:17:33,447 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1981 transitions. Word has length 21
[2022-02-09 02:17:33,447 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,447 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1981 transitions.
[2022-02-09 02:17:33,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1981 transitions.
[2022-02-09 02:17:33,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:33,449 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-02-09 02:17:33,450 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:33,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash 951715149, now seen corresponding path program 20 times
[2022-02-09 02:17:33,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248046789]
[2022-02-09 02:17:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,575 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 02:17:33,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248046789]
[2022-02-09 02:17:33,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248046789] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:33,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926550460]
[2022-02-09 02:17:33,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:33,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:33,577 INFO L87 Difference]: Start difference. First operand 585 states and 1981 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,690 INFO L93 Difference]: Finished difference Result 1144 states and 3652 transitions.
[2022-02-09 02:17:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:33,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,695 INFO L225 Difference]: With dead ends: 1144
[2022-02-09 02:17:33,695 INFO L226 Difference]: Without dead ends: 1015
[2022-02-09 02:17:33,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:33,696 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 97 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 89 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 02:17:33,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 89 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states.
[2022-02-09 02:17:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 573.
[2022-02-09 02:17:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 3.3968531468531467) internal successors, (1943), 572 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 1943 transitions.
[2022-02-09 02:17:33,713 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 1943 transitions. Word has length 21
[2022-02-09 02:17:33,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,714 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 1943 transitions.
[2022-02-09 02:17:33,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 1943 transitions.
[2022-02-09 02:17:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:33,715 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-02-09 02:17:33,716 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash -158506453, now seen corresponding path program 21 times
[2022-02-09 02:17:33,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835193189]
[2022-02-09 02:17:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:33,827 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 02:17:33,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:33,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835193189]
[2022-02-09 02:17:33,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835193189] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:33,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:33,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:33,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135506241]
[2022-02-09 02:17:33,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:33,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:33,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:33,829 INFO L87 Difference]: Start difference. First operand 573 states and 1943 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:33,965 INFO L93 Difference]: Finished difference Result 1128 states and 3604 transitions.
[2022-02-09 02:17:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:33,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:33,970 INFO L225 Difference]: With dead ends: 1128
[2022-02-09 02:17:33,970 INFO L226 Difference]: Without dead ends: 1025
[2022-02-09 02:17:33,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:33,971 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 75 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 116 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 02:17:33,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 116 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states.
[2022-02-09 02:17:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 585.
[2022-02-09 02:17:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 3.381849315068493) internal successors, (1975), 584 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1975 transitions.
[2022-02-09 02:17:33,988 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1975 transitions. Word has length 21
[2022-02-09 02:17:33,988 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:33,988 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1975 transitions.
[2022-02-09 02:17:33,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1975 transitions.
[2022-02-09 02:17:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:33,990 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:33,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:33,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-02-09 02:17:33,990 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:33,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:33,991 INFO L85 PathProgramCache]: Analyzing trace with hash 945284429, now seen corresponding path program 22 times
[2022-02-09 02:17:33,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:33,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937923343]
[2022-02-09 02:17:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:33,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:34,102 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 02:17:34,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:34,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937923343]
[2022-02-09 02:17:34,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937923343] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:34,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:34,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:34,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574654250]
[2022-02-09 02:17:34,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:34,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:34,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:34,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:34,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:34,104 INFO L87 Difference]: Start difference. First operand 585 states and 1975 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,219 INFO L93 Difference]: Finished difference Result 1140 states and 3636 transitions.
[2022-02-09 02:17:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:34,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:34,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,223 INFO L225 Difference]: With dead ends: 1140
[2022-02-09 02:17:34,223 INFO L226 Difference]: Without dead ends: 1013
[2022-02-09 02:17:34,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:34,224 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 74 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 101 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 02:17:34,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 101 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states.
[2022-02-09 02:17:34,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 573.
[2022-02-09 02:17:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 3.3863636363636362) internal successors, (1937), 572 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 1937 transitions.
[2022-02-09 02:17:34,240 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 1937 transitions. Word has length 21
[2022-02-09 02:17:34,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,241 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 1937 transitions.
[2022-02-09 02:17:34,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 1937 transitions.
[2022-02-09 02:17:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:34,242 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:34,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2022-02-09 02:17:34,243 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:34,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1746780339, now seen corresponding path program 23 times
[2022-02-09 02:17:34,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016331440]
[2022-02-09 02:17:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:34,340 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 02:17:34,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:34,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016331440]
[2022-02-09 02:17:34,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016331440] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:34,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:34,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:34,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093189943]
[2022-02-09 02:17:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:34,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:34,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:34,343 INFO L87 Difference]: Start difference. First operand 573 states and 1937 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,474 INFO L93 Difference]: Finished difference Result 1162 states and 3721 transitions.
[2022-02-09 02:17:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:34,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:34,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,478 INFO L225 Difference]: With dead ends: 1162
[2022-02-09 02:17:34,478 INFO L226 Difference]: Without dead ends: 1045
[2022-02-09 02:17:34,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:34,479 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 77 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 100 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 02:17:34,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 100 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states.
[2022-02-09 02:17:34,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 591.
[2022-02-09 02:17:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 590 states have (on average 3.369491525423729) internal successors, (1988), 590 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1988 transitions.
[2022-02-09 02:17:34,495 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1988 transitions. Word has length 21
[2022-02-09 02:17:34,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,495 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 1988 transitions.
[2022-02-09 02:17:34,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1988 transitions.
[2022-02-09 02:17:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:34,497 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,497 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]
[2022-02-09 02:17:34,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-02-09 02:17:34,497 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2075163221, now seen corresponding path program 24 times
[2022-02-09 02:17:34,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976863843]
[2022-02-09 02:17:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:34,598 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 02:17:34,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:34,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976863843]
[2022-02-09 02:17:34,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976863843] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:34,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:34,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:34,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002755785]
[2022-02-09 02:17:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:34,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:34,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:34,599 INFO L87 Difference]: Start difference. First operand 591 states and 1988 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,720 INFO L93 Difference]: Finished difference Result 1160 states and 3698 transitions.
[2022-02-09 02:17:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:34,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:34,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,724 INFO L225 Difference]: With dead ends: 1160
[2022-02-09 02:17:34,724 INFO L226 Difference]: Without dead ends: 1010
[2022-02-09 02:17:34,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:34,725 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 73 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 107 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 02:17:34,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 107 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states.
[2022-02-09 02:17:34,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 556.
[2022-02-09 02:17:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 3.427027027027027) internal successors, (1902), 555 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1902 transitions.
[2022-02-09 02:17:34,741 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1902 transitions. Word has length 21
[2022-02-09 02:17:34,741 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,741 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 1902 transitions.
[2022-02-09 02:17:34,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1902 transitions.
[2022-02-09 02:17:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:34,743 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:34,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2022-02-09 02:17:34,744 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1181393139, now seen corresponding path program 25 times
[2022-02-09 02:17:34,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074693329]
[2022-02-09 02:17:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:34,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:34,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074693329]
[2022-02-09 02:17:34,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074693329] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:34,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:34,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:34,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098002968]
[2022-02-09 02:17:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:34,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:34,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:34,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:34,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:34,853 INFO L87 Difference]: Start difference. First operand 556 states and 1902 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:34,969 INFO L93 Difference]: Finished difference Result 1242 states and 3976 transitions.
[2022-02-09 02:17:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:34,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:34,973 INFO L225 Difference]: With dead ends: 1242
[2022-02-09 02:17:34,974 INFO L226 Difference]: Without dead ends: 1108
[2022-02-09 02:17:34,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:34,974 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 81 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 112 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 02:17:34,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 112 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states.
[2022-02-09 02:17:34,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 591.
[2022-02-09 02:17:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 590 states have (on average 3.3813559322033897) internal successors, (1995), 590 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1995 transitions.
[2022-02-09 02:17:34,993 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1995 transitions. Word has length 21
[2022-02-09 02:17:34,993 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:34,993 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 1995 transitions.
[2022-02-09 02:17:34,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1995 transitions.
[2022-02-09 02:17:34,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:34,995 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:34,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:34,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2022-02-09 02:17:34,995 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:34,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1163318511, now seen corresponding path program 26 times
[2022-02-09 02:17:34,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:34,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877288716]
[2022-02-09 02:17:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:34,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877288716]
[2022-02-09 02:17:35,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877288716] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:35,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504462972]
[2022-02-09 02:17:35,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:35,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:35,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:35,106 INFO L87 Difference]: Start difference. First operand 591 states and 1995 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,224 INFO L93 Difference]: Finished difference Result 1225 states and 3899 transitions.
[2022-02-09 02:17:35,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:35,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,229 INFO L225 Difference]: With dead ends: 1225
[2022-02-09 02:17:35,229 INFO L226 Difference]: Without dead ends: 1073
[2022-02-09 02:17:35,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,230 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 98 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 89 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 02:17:35,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:35,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states.
[2022-02-09 02:17:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 556.
[2022-02-09 02:17:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 3.4018018018018017) internal successors, (1888), 555 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1888 transitions.
[2022-02-09 02:17:35,246 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1888 transitions. Word has length 21
[2022-02-09 02:17:35,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:35,246 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 1888 transitions.
[2022-02-09 02:17:35,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,246 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1888 transitions.
[2022-02-09 02:17:35,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:35,248 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:35,248 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]
[2022-02-09 02:17:35,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2022-02-09 02:17:35,248 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1016057387, now seen corresponding path program 27 times
[2022-02-09 02:17:35,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:35,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489765382]
[2022-02-09 02:17:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:35,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489765382]
[2022-02-09 02:17:35,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489765382] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:35,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161036776]
[2022-02-09 02:17:35,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:35,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:35,368 INFO L87 Difference]: Start difference. First operand 556 states and 1888 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,484 INFO L93 Difference]: Finished difference Result 1182 states and 3766 transitions.
[2022-02-09 02:17:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:35,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,487 INFO L225 Difference]: With dead ends: 1182
[2022-02-09 02:17:35,487 INFO L226 Difference]: Without dead ends: 1079
[2022-02-09 02:17:35,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,488 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 88 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 96 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 02:17:35,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 96 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states.
[2022-02-09 02:17:35,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 576.
[2022-02-09 02:17:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 3.3878260869565215) internal successors, (1948), 575 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1948 transitions.
[2022-02-09 02:17:35,502 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1948 transitions. Word has length 21
[2022-02-09 02:17:35,502 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1948 transitions.
[2022-02-09 02:17:35,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,503 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1948 transitions.
[2022-02-09 02:17:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:35,504 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:35,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:35,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2022-02-09 02:17:35,505 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -849369587, now seen corresponding path program 28 times
[2022-02-09 02:17:35,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:35,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677869025]
[2022-02-09 02:17:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:35,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677869025]
[2022-02-09 02:17:35,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677869025] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:35,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071388342]
[2022-02-09 02:17:35,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:35,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:35,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:35,607 INFO L87 Difference]: Start difference. First operand 576 states and 1948 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,715 INFO L93 Difference]: Finished difference Result 1213 states and 3853 transitions.
[2022-02-09 02:17:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,719 INFO L225 Difference]: With dead ends: 1213
[2022-02-09 02:17:35,719 INFO L226 Difference]: Without dead ends: 1059
[2022-02-09 02:17:35,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,720 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 96 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 94 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 02:17:35,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 94 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states.
[2022-02-09 02:17:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 556.
[2022-02-09 02:17:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 3.383783783783784) internal successors, (1878), 555 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1878 transitions.
[2022-02-09 02:17:35,734 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1878 transitions. Word has length 21
[2022-02-09 02:17:35,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:35,734 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 1878 transitions.
[2022-02-09 02:17:35,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1878 transitions.
[2022-02-09 02:17:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:35,736 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:35,736 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]
[2022-02-09 02:17:35,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2022-02-09 02:17:35,737 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash -573877363, now seen corresponding path program 29 times
[2022-02-09 02:17:35,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:35,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796869932]
[2022-02-09 02:17:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:35,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:35,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:35,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:35,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796869932]
[2022-02-09 02:17:35,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796869932] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:35,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:35,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:35,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656946870]
[2022-02-09 02:17:35,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:35,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:35,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:35,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:35,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:35,847 INFO L87 Difference]: Start difference. First operand 556 states and 1878 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:35,959 INFO L93 Difference]: Finished difference Result 1157 states and 3678 transitions.
[2022-02-09 02:17:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:35,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:35,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:35,964 INFO L225 Difference]: With dead ends: 1157
[2022-02-09 02:17:35,964 INFO L226 Difference]: Without dead ends: 1054
[2022-02-09 02:17:35,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:35,965 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 92 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 96 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 02:17:35,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 96 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:35,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states.
[2022-02-09 02:17:35,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 568.
[2022-02-09 02:17:36,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 567 states have (on average 3.368606701940035) internal successors, (1910), 567 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 1910 transitions.
[2022-02-09 02:17:36,004 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 1910 transitions. Word has length 21
[2022-02-09 02:17:36,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,004 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 1910 transitions.
[2022-02-09 02:17:36,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 1910 transitions.
[2022-02-09 02:17:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,006 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,006 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]
[2022-02-09 02:17:36,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2022-02-09 02:17:36,006 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1506992755, now seen corresponding path program 30 times
[2022-02-09 02:17:36,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169750458]
[2022-02-09 02:17:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169750458]
[2022-02-09 02:17:36,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169750458] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:36,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157123734]
[2022-02-09 02:17:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:36,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:36,105 INFO L87 Difference]: Start difference. First operand 568 states and 1910 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,217 INFO L93 Difference]: Finished difference Result 1171 states and 3715 transitions.
[2022-02-09 02:17:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,221 INFO L225 Difference]: With dead ends: 1171
[2022-02-09 02:17:36,222 INFO L226 Difference]: Without dead ends: 1028
[2022-02-09 02:17:36,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,222 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 86 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 101 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 02:17:36,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 101 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states.
[2022-02-09 02:17:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 542.
[2022-02-09 02:17:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 3.406654343807763) internal successors, (1843), 541 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1843 transitions.
[2022-02-09 02:17:36,239 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1843 transitions. Word has length 21
[2022-02-09 02:17:36,239 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,239 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1843 transitions.
[2022-02-09 02:17:36,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,239 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1843 transitions.
[2022-02-09 02:17:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,240 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:36,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2022-02-09 02:17:36,241 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1140268139, now seen corresponding path program 31 times
[2022-02-09 02:17:36,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531941554]
[2022-02-09 02:17:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531941554]
[2022-02-09 02:17:36,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531941554] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:36,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253060407]
[2022-02-09 02:17:36,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:36,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:36,353 INFO L87 Difference]: Start difference. First operand 542 states and 1843 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,453 INFO L93 Difference]: Finished difference Result 1207 states and 3850 transitions.
[2022-02-09 02:17:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:36,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,456 INFO L225 Difference]: With dead ends: 1207
[2022-02-09 02:17:36,456 INFO L226 Difference]: Without dead ends: 1073
[2022-02-09 02:17:36,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,457 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 86 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 99 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 02:17:36,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 99 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states.
[2022-02-09 02:17:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 591.
[2022-02-09 02:17:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 590 states have (on average 3.371186440677966) internal successors, (1989), 590 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1989 transitions.
[2022-02-09 02:17:36,473 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1989 transitions. Word has length 21
[2022-02-09 02:17:36,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,474 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 1989 transitions.
[2022-02-09 02:17:36,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1989 transitions.
[2022-02-09 02:17:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,475 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,475 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]
[2022-02-09 02:17:36,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2022-02-09 02:17:36,476 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash -809987507, now seen corresponding path program 32 times
[2022-02-09 02:17:36,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478361481]
[2022-02-09 02:17:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,580 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 02:17:36,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478361481]
[2022-02-09 02:17:36,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478361481] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:36,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806297793]
[2022-02-09 02:17:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:36,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:36,582 INFO L87 Difference]: Start difference. First operand 591 states and 1989 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,695 INFO L93 Difference]: Finished difference Result 1190 states and 3773 transitions.
[2022-02-09 02:17:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:36,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,699 INFO L225 Difference]: With dead ends: 1190
[2022-02-09 02:17:36,699 INFO L226 Difference]: Without dead ends: 1038
[2022-02-09 02:17:36,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,700 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 83 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 93 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 02:17:36,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 93 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states.
[2022-02-09 02:17:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 556.
[2022-02-09 02:17:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 3.390990990990991) internal successors, (1882), 555 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1882 transitions.
[2022-02-09 02:17:36,717 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1882 transitions. Word has length 21
[2022-02-09 02:17:36,717 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,717 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 1882 transitions.
[2022-02-09 02:17:36,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1882 transitions.
[2022-02-09 02:17:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,719 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,719 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]
[2022-02-09 02:17:36,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2022-02-09 02:17:36,719 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1851976711, now seen corresponding path program 1 times
[2022-02-09 02:17:36,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603417691]
[2022-02-09 02:17:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,729 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 02:17:36,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603417691]
[2022-02-09 02:17:36,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603417691] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-09 02:17:36,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739423561]
[2022-02-09 02:17:36,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-09 02:17:36,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-09 02:17:36,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-09 02:17:36,731 INFO L87 Difference]: Start difference. First operand 556 states and 1882 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,741 INFO L93 Difference]: Finished difference Result 473 states and 1551 transitions.
[2022-02-09 02:17:36,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-09 02:17:36,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,744 INFO L225 Difference]: With dead ends: 473
[2022-02-09 02:17:36,744 INFO L226 Difference]: Without dead ends: 473
[2022-02-09 02:17:36,744 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 02:17:36,744 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:36,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states.
[2022-02-09 02:17:36,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473.
[2022-02-09 02:17:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 3.2860169491525424) internal successors, (1551), 472 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1551 transitions.
[2022-02-09 02:17:36,756 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1551 transitions. Word has length 21
[2022-02-09 02:17:36,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,756 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1551 transitions.
[2022-02-09 02:17:36,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,756 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1551 transitions.
[2022-02-09 02:17:36,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,757 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:36,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2022-02-09 02:17:36,758 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1742938129, now seen corresponding path program 33 times
[2022-02-09 02:17:36,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326841440]
[2022-02-09 02:17:36,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:36,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:36,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326841440]
[2022-02-09 02:17:36,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326841440] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:36,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:36,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:36,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20873398]
[2022-02-09 02:17:36,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:36,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:36,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:36,873 INFO L87 Difference]: Start difference. First operand 473 states and 1551 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:36,963 INFO L93 Difference]: Finished difference Result 940 states and 2857 transitions.
[2022-02-09 02:17:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:36,967 INFO L225 Difference]: With dead ends: 940
[2022-02-09 02:17:36,967 INFO L226 Difference]: Without dead ends: 861
[2022-02-09 02:17:36,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:36,967 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 106 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 02:17:36,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 106 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states.
[2022-02-09 02:17:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 489.
[2022-02-09 02:17:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 3.276639344262295) internal successors, (1599), 488 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 1599 transitions.
[2022-02-09 02:17:36,980 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 1599 transitions. Word has length 21
[2022-02-09 02:17:36,980 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:36,980 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 1599 transitions.
[2022-02-09 02:17:36,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 1599 transitions.
[2022-02-09 02:17:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:36,981 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:36,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:36,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2022-02-09 02:17:36,982 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:36,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:36,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1414555247, now seen corresponding path program 34 times
[2022-02-09 02:17:36,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:36,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588298057]
[2022-02-09 02:17:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:36,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,088 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 02:17:37,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588298057]
[2022-02-09 02:17:37,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588298057] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:37,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518055149]
[2022-02-09 02:17:37,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:37,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:37,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:37,090 INFO L87 Difference]: Start difference. First operand 489 states and 1599 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,174 INFO L93 Difference]: Finished difference Result 924 states and 2801 transitions.
[2022-02-09 02:17:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:37,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,177 INFO L225 Difference]: With dead ends: 924
[2022-02-09 02:17:37,177 INFO L226 Difference]: Without dead ends: 798
[2022-02-09 02:17:37,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,178 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:37,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 91 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states.
[2022-02-09 02:17:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 473.
[2022-02-09 02:17:37,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 3.2690677966101696) internal successors, (1543), 472 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1543 transitions.
[2022-02-09 02:17:37,190 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1543 transitions. Word has length 21
[2022-02-09 02:17:37,190 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,190 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1543 transitions.
[2022-02-09 02:17:37,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1543 transitions.
[2022-02-09 02:17:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:37,192 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,192 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]
[2022-02-09 02:17:37,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2022-02-09 02:17:37,192 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,192 INFO L85 PathProgramCache]: Analyzing trace with hash -300398865, now seen corresponding path program 35 times
[2022-02-09 02:17:37,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781345802]
[2022-02-09 02:17:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:37,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781345802]
[2022-02-09 02:17:37,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781345802] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:37,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608018845]
[2022-02-09 02:17:37,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:37,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:37,311 INFO L87 Difference]: Start difference. First operand 473 states and 1543 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,397 INFO L93 Difference]: Finished difference Result 915 states and 2771 transitions.
[2022-02-09 02:17:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:37,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:37,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,399 INFO L225 Difference]: With dead ends: 915
[2022-02-09 02:17:37,399 INFO L226 Difference]: Without dead ends: 836
[2022-02-09 02:17:37,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,400 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 72 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 104 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 02:17:37,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 104 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states.
[2022-02-09 02:17:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 481.
[2022-02-09 02:17:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 3.25625) internal successors, (1563), 480 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1563 transitions.
[2022-02-09 02:17:37,412 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1563 transitions. Word has length 21
[2022-02-09 02:17:37,412 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,412 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 1563 transitions.
[2022-02-09 02:17:37,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1563 transitions.
[2022-02-09 02:17:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:37,414 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:37,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2022-02-09 02:17:37,414 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1791893777, now seen corresponding path program 36 times
[2022-02-09 02:17:37,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349811976]
[2022-02-09 02:17:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:37,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349811976]
[2022-02-09 02:17:37,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349811976] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:37,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137936017]
[2022-02-09 02:17:37,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:37,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:37,529 INFO L87 Difference]: Start difference. First operand 481 states and 1563 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,628 INFO L93 Difference]: Finished difference Result 899 states and 2715 transitions.
[2022-02-09 02:17:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:37,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:37,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,631 INFO L225 Difference]: With dead ends: 899
[2022-02-09 02:17:37,631 INFO L226 Difference]: Without dead ends: 786
[2022-02-09 02:17:37,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,632 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 98 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 02:17:37,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 98 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states.
[2022-02-09 02:17:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 461.
[2022-02-09 02:17:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 3.2891304347826087) internal successors, (1513), 460 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1513 transitions.
[2022-02-09 02:17:37,647 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1513 transitions. Word has length 21
[2022-02-09 02:17:37,647 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,647 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1513 transitions.
[2022-02-09 02:17:37,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1513 transitions.
[2022-02-09 02:17:37,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:37,648 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,648 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]
[2022-02-09 02:17:37,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2022-02-09 02:17:37,649 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:37,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1558519343, now seen corresponding path program 37 times
[2022-02-09 02:17:37,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587393155]
[2022-02-09 02:17:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,769 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 02:17:37,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587393155]
[2022-02-09 02:17:37,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587393155] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:37,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827198399]
[2022-02-09 02:17:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:37,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:37,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:37,771 INFO L87 Difference]: Start difference. First operand 461 states and 1513 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:37,862 INFO L93 Difference]: Finished difference Result 927 states and 2839 transitions.
[2022-02-09 02:17:37,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:37,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:37,866 INFO L225 Difference]: With dead ends: 927
[2022-02-09 02:17:37,866 INFO L226 Difference]: Without dead ends: 840
[2022-02-09 02:17:37,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:37,867 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 83 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:37,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 94 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:37,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states.
[2022-02-09 02:17:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 477.
[2022-02-09 02:17:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 3.28781512605042) internal successors, (1565), 476 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 1565 transitions.
[2022-02-09 02:17:37,880 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 1565 transitions. Word has length 21
[2022-02-09 02:17:37,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:37,880 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 1565 transitions.
[2022-02-09 02:17:37,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1565 transitions.
[2022-02-09 02:17:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:37,881 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:37,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:37,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2022-02-09 02:17:37,882 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:37,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash -777725515, now seen corresponding path program 38 times
[2022-02-09 02:17:37,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:37,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115843152]
[2022-02-09 02:17:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:37,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:37,991 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 02:17:37,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:37,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115843152]
[2022-02-09 02:17:37,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115843152] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:37,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:37,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:37,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620938173]
[2022-02-09 02:17:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:37,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:37,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:37,993 INFO L87 Difference]: Start difference. First operand 477 states and 1565 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,077 INFO L93 Difference]: Finished difference Result 919 states and 2803 transitions.
[2022-02-09 02:17:38,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:38,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,079 INFO L225 Difference]: With dead ends: 919
[2022-02-09 02:17:38,079 INFO L226 Difference]: Without dead ends: 832
[2022-02-09 02:17:38,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,079 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 74 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 106 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 02:17:38,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 106 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states.
[2022-02-09 02:17:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 469.
[2022-02-09 02:17:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 3.2927350427350426) internal successors, (1541), 468 states have internal predecessors, (1541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 1541 transitions.
[2022-02-09 02:17:38,090 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 1541 transitions. Word has length 21
[2022-02-09 02:17:38,091 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,091 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 1541 transitions.
[2022-02-09 02:17:38,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,091 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1541 transitions.
[2022-02-09 02:17:38,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:38,092 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2022-02-09 02:17:38,092 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:38,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,093 INFO L85 PathProgramCache]: Analyzing trace with hash -484817651, now seen corresponding path program 39 times
[2022-02-09 02:17:38,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271032850]
[2022-02-09 02:17:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,203 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 02:17:38,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271032850]
[2022-02-09 02:17:38,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271032850] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:38,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358041454]
[2022-02-09 02:17:38,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:38,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:38,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:38,206 INFO L87 Difference]: Start difference. First operand 469 states and 1541 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,303 INFO L93 Difference]: Finished difference Result 950 states and 2902 transitions.
[2022-02-09 02:17:38,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:38,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:38,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,306 INFO L225 Difference]: With dead ends: 950
[2022-02-09 02:17:38,306 INFO L226 Difference]: Without dead ends: 863
[2022-02-09 02:17:38,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,307 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 79 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 102 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states.
[2022-02-09 02:17:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 489.
[2022-02-09 02:17:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 3.2807377049180326) internal successors, (1601), 488 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 1601 transitions.
[2022-02-09 02:17:38,318 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 1601 transitions. Word has length 21
[2022-02-09 02:17:38,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,320 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 1601 transitions.
[2022-02-09 02:17:38,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 1601 transitions.
[2022-02-09 02:17:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:38,322 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,324 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]
[2022-02-09 02:17:38,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2022-02-09 02:17:38,331 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:38,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1760141457, now seen corresponding path program 40 times
[2022-02-09 02:17:38,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682467512]
[2022-02-09 02:17:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,440 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 02:17:38,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682467512]
[2022-02-09 02:17:38,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682467512] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:38,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579736242]
[2022-02-09 02:17:38,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:38,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:38,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:38,444 INFO L87 Difference]: Start difference. First operand 489 states and 1601 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,523 INFO L93 Difference]: Finished difference Result 973 states and 2957 transitions.
[2022-02-09 02:17:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,526 INFO L225 Difference]: With dead ends: 973
[2022-02-09 02:17:38,526 INFO L226 Difference]: Without dead ends: 843
[2022-02-09 02:17:38,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,526 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 87 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 88 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states.
[2022-02-09 02:17:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 469.
[2022-02-09 02:17:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 3.2756410256410255) internal successors, (1533), 468 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 1533 transitions.
[2022-02-09 02:17:38,537 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 1533 transitions. Word has length 21
[2022-02-09 02:17:38,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,537 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 1533 transitions.
[2022-02-09 02:17:38,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1533 transitions.
[2022-02-09 02:17:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:38,538 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2022-02-09 02:17:38,539 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1130865005, now seen corresponding path program 41 times
[2022-02-09 02:17:38,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597347254]
[2022-02-09 02:17:38,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:38,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597347254]
[2022-02-09 02:17:38,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597347254] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:38,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425670323]
[2022-02-09 02:17:38,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:38,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:38,657 INFO L87 Difference]: Start difference. First operand 469 states and 1533 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,735 INFO L93 Difference]: Finished difference Result 930 states and 2822 transitions.
[2022-02-09 02:17:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:38,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:38,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,737 INFO L225 Difference]: With dead ends: 930
[2022-02-09 02:17:38,737 INFO L226 Difference]: Without dead ends: 851
[2022-02-09 02:17:38,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,738 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 77 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:38,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 91 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states.
[2022-02-09 02:17:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 485.
[2022-02-09 02:17:38,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 3.2665289256198347) internal successors, (1581), 484 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1581 transitions.
[2022-02-09 02:17:38,749 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1581 transitions. Word has length 21
[2022-02-09 02:17:38,749 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,749 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1581 transitions.
[2022-02-09 02:17:38,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,749 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1581 transitions.
[2022-02-09 02:17:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:38,750 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:38,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2022-02-09 02:17:38,751 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:38,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1574167541, now seen corresponding path program 42 times
[2022-02-09 02:17:38,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781630307]
[2022-02-09 02:17:38,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:38,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:38,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781630307]
[2022-02-09 02:17:38,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781630307] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:38,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:38,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:38,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320640605]
[2022-02-09 02:17:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:38,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:38,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:38,864 INFO L87 Difference]: Start difference. First operand 485 states and 1581 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:38,946 INFO L93 Difference]: Finished difference Result 914 states and 2766 transitions.
[2022-02-09 02:17:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:38,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:38,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:38,948 INFO L225 Difference]: With dead ends: 914
[2022-02-09 02:17:38,948 INFO L226 Difference]: Without dead ends: 780
[2022-02-09 02:17:38,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:38,949 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 67 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 100 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 02:17:38,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 100 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states.
[2022-02-09 02:17:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 461.
[2022-02-09 02:17:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 3.2804347826086957) internal successors, (1509), 460 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1509 transitions.
[2022-02-09 02:17:38,960 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1509 transitions. Word has length 21
[2022-02-09 02:17:38,960 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:38,961 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1509 transitions.
[2022-02-09 02:17:38,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1509 transitions.
[2022-02-09 02:17:38,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:38,962 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:38,962 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]
[2022-02-09 02:17:38,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2022-02-09 02:17:38,962 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:38,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 711722381, now seen corresponding path program 43 times
[2022-02-09 02:17:38,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:38,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360317207]
[2022-02-09 02:17:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:38,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:39,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360317207]
[2022-02-09 02:17:39,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360317207] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:39,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108827259]
[2022-02-09 02:17:39,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:39,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:39,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:39,081 INFO L87 Difference]: Start difference. First operand 461 states and 1509 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,177 INFO L93 Difference]: Finished difference Result 890 states and 2713 transitions.
[2022-02-09 02:17:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:39,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:39,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,179 INFO L225 Difference]: With dead ends: 890
[2022-02-09 02:17:39,179 INFO L226 Difference]: Without dead ends: 803
[2022-02-09 02:17:39,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,180 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 71 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 105 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 02:17:39,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 105 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states.
[2022-02-09 02:17:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 473.
[2022-02-09 02:17:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 3.2733050847457625) internal successors, (1545), 472 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1545 transitions.
[2022-02-09 02:17:39,190 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1545 transitions. Word has length 21
[2022-02-09 02:17:39,190 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,190 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1545 transitions.
[2022-02-09 02:17:39,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1545 transitions.
[2022-02-09 02:17:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:39,191 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:39,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2022-02-09 02:17:39,192 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1624522477, now seen corresponding path program 44 times
[2022-02-09 02:17:39,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886334180]
[2022-02-09 02:17:39,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,324 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 02:17:39,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886334180]
[2022-02-09 02:17:39,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886334180] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:39,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842421666]
[2022-02-09 02:17:39,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:39,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:39,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:39,325 INFO L87 Difference]: Start difference. First operand 473 states and 1545 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,407 INFO L93 Difference]: Finished difference Result 882 states and 2677 transitions.
[2022-02-09 02:17:39,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:39,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,409 INFO L225 Difference]: With dead ends: 882
[2022-02-09 02:17:39,409 INFO L226 Difference]: Without dead ends: 795
[2022-02-09 02:17:39,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,409 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 80 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:39,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 96 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states.
[2022-02-09 02:17:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 465.
[2022-02-09 02:17:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 3.2780172413793105) internal successors, (1521), 464 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1521 transitions.
[2022-02-09 02:17:39,421 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1521 transitions. Word has length 21
[2022-02-09 02:17:39,421 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,421 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 1521 transitions.
[2022-02-09 02:17:39,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1521 transitions.
[2022-02-09 02:17:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:39,423 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:39,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2022-02-09 02:17:39,423 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:39,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1904188813, now seen corresponding path program 45 times
[2022-02-09 02:17:39,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916316401]
[2022-02-09 02:17:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:39,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916316401]
[2022-02-09 02:17:39,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916316401] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:39,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282979960]
[2022-02-09 02:17:39,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:39,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:39,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:39,531 INFO L87 Difference]: Start difference. First operand 465 states and 1521 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,620 INFO L93 Difference]: Finished difference Result 896 states and 2726 transitions.
[2022-02-09 02:17:39,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:39,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,623 INFO L225 Difference]: With dead ends: 896
[2022-02-09 02:17:39,623 INFO L226 Difference]: Without dead ends: 809
[2022-02-09 02:17:39,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,624 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 74 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:39,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 101 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states.
[2022-02-09 02:17:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 477.
[2022-02-09 02:17:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 3.2626050420168067) internal successors, (1553), 476 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 1553 transitions.
[2022-02-09 02:17:39,635 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 1553 transitions. Word has length 21
[2022-02-09 02:17:39,635 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,635 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 1553 transitions.
[2022-02-09 02:17:39,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1553 transitions.
[2022-02-09 02:17:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:39,637 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,637 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]
[2022-02-09 02:17:39,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2022-02-09 02:17:39,639 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,639 INFO L85 PathProgramCache]: Analyzing trace with hash -28758161, now seen corresponding path program 46 times
[2022-02-09 02:17:39,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801489927]
[2022-02-09 02:17:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,749 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 02:17:39,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801489927]
[2022-02-09 02:17:39,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801489927] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:39,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633619972]
[2022-02-09 02:17:39,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:39,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:39,751 INFO L87 Difference]: Start difference. First operand 477 states and 1553 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:39,832 INFO L93 Difference]: Finished difference Result 902 states and 2731 transitions.
[2022-02-09 02:17:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:39,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:39,834 INFO L225 Difference]: With dead ends: 902
[2022-02-09 02:17:39,834 INFO L226 Difference]: Without dead ends: 797
[2022-02-09 02:17:39,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:39,834 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:39,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 101 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states.
[2022-02-09 02:17:39,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 465.
[2022-02-09 02:17:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 3.269396551724138) internal successors, (1517), 464 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1517 transitions.
[2022-02-09 02:17:39,844 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1517 transitions. Word has length 21
[2022-02-09 02:17:39,844 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:39,844 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 1517 transitions.
[2022-02-09 02:17:39,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1517 transitions.
[2022-02-09 02:17:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:39,845 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:39,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:39,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2022-02-09 02:17:39,845 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:39,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1258141459, now seen corresponding path program 47 times
[2022-02-09 02:17:39,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:39,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492109170]
[2022-02-09 02:17:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:39,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:39,947 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 02:17:39,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:39,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492109170]
[2022-02-09 02:17:39,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492109170] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:39,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:39,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:39,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180005145]
[2022-02-09 02:17:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:39,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:39,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:39,949 INFO L87 Difference]: Start difference. First operand 465 states and 1517 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,029 INFO L93 Difference]: Finished difference Result 876 states and 2650 transitions.
[2022-02-09 02:17:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:40,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,032 INFO L225 Difference]: With dead ends: 876
[2022-02-09 02:17:40,032 INFO L226 Difference]: Without dead ends: 797
[2022-02-09 02:17:40,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,032 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 105 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states.
[2022-02-09 02:17:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 473.
[2022-02-09 02:17:40,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 3.2563559322033897) internal successors, (1537), 472 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1537 transitions.
[2022-02-09 02:17:40,042 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1537 transitions. Word has length 21
[2022-02-09 02:17:40,042 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,042 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1537 transitions.
[2022-02-09 02:17:40,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1537 transitions.
[2022-02-09 02:17:40,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:40,043 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2022-02-09 02:17:40,044 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash -310787083, now seen corresponding path program 48 times
[2022-02-09 02:17:40,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044321546]
[2022-02-09 02:17:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:40,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044321546]
[2022-02-09 02:17:40,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044321546] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:40,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287429196]
[2022-02-09 02:17:40,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:40,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:40,153 INFO L87 Difference]: Start difference. First operand 473 states and 1537 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,228 INFO L93 Difference]: Finished difference Result 860 states and 2594 transitions.
[2022-02-09 02:17:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:40,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,229 INFO L225 Difference]: With dead ends: 860
[2022-02-09 02:17:40,229 INFO L226 Difference]: Without dead ends: 749
[2022-02-09 02:17:40,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,230 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 91 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:40,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states.
[2022-02-09 02:17:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 455.
[2022-02-09 02:17:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.297356828193833) internal successors, (1497), 454 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1497 transitions.
[2022-02-09 02:17:40,240 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1497 transitions. Word has length 21
[2022-02-09 02:17:40,240 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,240 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 1497 transitions.
[2022-02-09 02:17:40,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1497 transitions.
[2022-02-09 02:17:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:40,241 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2022-02-09 02:17:40,242 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash 249500617, now seen corresponding path program 49 times
[2022-02-09 02:17:40,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055323734]
[2022-02-09 02:17:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,348 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 02:17:40,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055323734]
[2022-02-09 02:17:40,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055323734] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:40,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175447157]
[2022-02-09 02:17:40,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:40,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:40,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:40,349 INFO L87 Difference]: Start difference. First operand 455 states and 1497 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,431 INFO L93 Difference]: Finished difference Result 982 states and 2989 transitions.
[2022-02-09 02:17:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:40,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,433 INFO L225 Difference]: With dead ends: 982
[2022-02-09 02:17:40,433 INFO L226 Difference]: Without dead ends: 872
[2022-02-09 02:17:40,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,434 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 83 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 94 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 02:17:40,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 94 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states.
[2022-02-09 02:17:40,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 486.
[2022-02-09 02:17:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 3.2494845360824742) internal successors, (1576), 485 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1576 transitions.
[2022-02-09 02:17:40,447 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1576 transitions. Word has length 21
[2022-02-09 02:17:40,448 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,448 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 1576 transitions.
[2022-02-09 02:17:40,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1576 transitions.
[2022-02-09 02:17:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:40,449 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2022-02-09 02:17:40,450 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1700755029, now seen corresponding path program 50 times
[2022-02-09 02:17:40,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045604004]
[2022-02-09 02:17:40,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:40,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045604004]
[2022-02-09 02:17:40,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045604004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:40,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080830632]
[2022-02-09 02:17:40,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:40,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:40,555 INFO L87 Difference]: Start difference. First operand 486 states and 1576 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,650 INFO L93 Difference]: Finished difference Result 965 states and 2916 transitions.
[2022-02-09 02:17:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:40,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,653 INFO L225 Difference]: With dead ends: 965
[2022-02-09 02:17:40,653 INFO L226 Difference]: Without dead ends: 841
[2022-02-09 02:17:40,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,655 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 68 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 98 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 02:17:40,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 98 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states.
[2022-02-09 02:17:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 455.
[2022-02-09 02:17:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.2709251101321586) internal successors, (1485), 454 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1485 transitions.
[2022-02-09 02:17:40,678 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1485 transitions. Word has length 21
[2022-02-09 02:17:40,678 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,678 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 1485 transitions.
[2022-02-09 02:17:40,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1485 transitions.
[2022-02-09 02:17:40,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:40,679 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:40,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2022-02-09 02:17:40,680 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash 852170607, now seen corresponding path program 51 times
[2022-02-09 02:17:40,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417787023]
[2022-02-09 02:17:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:40,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417787023]
[2022-02-09 02:17:40,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417787023] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:40,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2969207]
[2022-02-09 02:17:40,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:40,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:40,808 INFO L87 Difference]: Start difference. First operand 455 states and 1485 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:40,878 INFO L93 Difference]: Finished difference Result 922 states and 2791 transitions.
[2022-02-09 02:17:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:40,880 INFO L225 Difference]: With dead ends: 922
[2022-02-09 02:17:40,880 INFO L226 Difference]: Without dead ends: 843
[2022-02-09 02:17:40,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:40,881 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 77 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:40,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 88 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states.
[2022-02-09 02:17:40,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 471.
[2022-02-09 02:17:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 3.2617021276595746) internal successors, (1533), 470 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 1533 transitions.
[2022-02-09 02:17:40,888 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 1533 transitions. Word has length 21
[2022-02-09 02:17:40,888 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:40,888 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 1533 transitions.
[2022-02-09 02:17:40,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 1533 transitions.
[2022-02-09 02:17:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:40,889 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:40,889 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]
[2022-02-09 02:17:40,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2022-02-09 02:17:40,890 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:40,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 523787725, now seen corresponding path program 52 times
[2022-02-09 02:17:40,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:40,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840061690]
[2022-02-09 02:17:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:40,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:40,987 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 02:17:40,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:40,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840061690]
[2022-02-09 02:17:40,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840061690] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:40,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:40,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:40,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375708026]
[2022-02-09 02:17:40,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:40,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:40,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:40,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:40,989 INFO L87 Difference]: Start difference. First operand 471 states and 1533 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,071 INFO L93 Difference]: Finished difference Result 953 states and 2878 transitions.
[2022-02-09 02:17:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:41,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,073 INFO L225 Difference]: With dead ends: 953
[2022-02-09 02:17:41,073 INFO L226 Difference]: Without dead ends: 827
[2022-02-09 02:17:41,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,074 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 91 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 02:17:41,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 91 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states.
[2022-02-09 02:17:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 455.
[2022-02-09 02:17:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.253303964757709) internal successors, (1477), 454 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1477 transitions.
[2022-02-09 02:17:41,081 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1477 transitions. Word has length 21
[2022-02-09 02:17:41,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,081 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 1477 transitions.
[2022-02-09 02:17:41,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1477 transitions.
[2022-02-09 02:17:41,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:41,082 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,082 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]
[2022-02-09 02:17:41,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2022-02-09 02:17:41,083 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:41,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1191166387, now seen corresponding path program 53 times
[2022-02-09 02:17:41,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746749969]
[2022-02-09 02:17:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:41,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746749969]
[2022-02-09 02:17:41,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746749969] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:41,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940790451]
[2022-02-09 02:17:41,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:41,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:41,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:41,203 INFO L87 Difference]: Start difference. First operand 455 states and 1477 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,288 INFO L93 Difference]: Finished difference Result 897 states and 2705 transitions.
[2022-02-09 02:17:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,291 INFO L225 Difference]: With dead ends: 897
[2022-02-09 02:17:41,291 INFO L226 Difference]: Without dead ends: 818
[2022-02-09 02:17:41,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,291 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 94 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 02:17:41,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 94 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states.
[2022-02-09 02:17:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 463.
[2022-02-09 02:17:41,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 3.24025974025974) internal successors, (1497), 462 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1497 transitions.
[2022-02-09 02:17:41,301 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1497 transitions. Word has length 21
[2022-02-09 02:17:41,301 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,301 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 1497 transitions.
[2022-02-09 02:17:41,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1497 transitions.
[2022-02-09 02:17:41,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:41,303 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,303 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]
[2022-02-09 02:17:41,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2022-02-09 02:17:41,303 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1612305997, now seen corresponding path program 54 times
[2022-02-09 02:17:41,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072217230]
[2022-02-09 02:17:41,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,417 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 02:17:41,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072217230]
[2022-02-09 02:17:41,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072217230] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:41,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221836948]
[2022-02-09 02:17:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:41,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:41,418 INFO L87 Difference]: Start difference. First operand 463 states and 1497 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,520 INFO L93 Difference]: Finished difference Result 911 states and 2742 transitions.
[2022-02-09 02:17:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:41,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,522 INFO L225 Difference]: With dead ends: 911
[2022-02-09 02:17:41,522 INFO L226 Difference]: Without dead ends: 798
[2022-02-09 02:17:41,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,523 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 69 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 99 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 02:17:41,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 99 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states.
[2022-02-09 02:17:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 443.
[2022-02-09 02:17:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 3.273755656108597) internal successors, (1447), 442 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1447 transitions.
[2022-02-09 02:17:41,532 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1447 transitions. Word has length 21
[2022-02-09 02:17:41,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,532 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1447 transitions.
[2022-02-09 02:17:41,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1447 transitions.
[2022-02-09 02:17:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:41,534 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,534 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]
[2022-02-09 02:17:41,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2022-02-09 02:17:41,534 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1342133931, now seen corresponding path program 55 times
[2022-02-09 02:17:41,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459707601]
[2022-02-09 02:17:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,647 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 02:17:41,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459707601]
[2022-02-09 02:17:41,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459707601] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:41,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709026519]
[2022-02-09 02:17:41,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:41,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:41,648 INFO L87 Difference]: Start difference. First operand 443 states and 1447 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,743 INFO L93 Difference]: Finished difference Result 963 states and 2923 transitions.
[2022-02-09 02:17:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:41,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,746 INFO L225 Difference]: With dead ends: 963
[2022-02-09 02:17:41,746 INFO L226 Difference]: Without dead ends: 853
[2022-02-09 02:17:41,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,746 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 73 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 93 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 02:17:41,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 93 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2022-02-09 02:17:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 443.
[2022-02-09 02:17:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 3.2217194570135748) internal successors, (1424), 442 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1424 transitions.
[2022-02-09 02:17:41,755 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1424 transitions. Word has length 21
[2022-02-09 02:17:41,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,756 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1424 transitions.
[2022-02-09 02:17:41,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1424 transitions.
[2022-02-09 02:17:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:41,757 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:41,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2022-02-09 02:17:41,757 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,758 INFO L85 PathProgramCache]: Analyzing trace with hash -608121715, now seen corresponding path program 56 times
[2022-02-09 02:17:41,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332006217]
[2022-02-09 02:17:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:41,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:41,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332006217]
[2022-02-09 02:17:41,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332006217] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:41,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:41,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:41,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846263026]
[2022-02-09 02:17:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:41,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:41,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:41,859 INFO L87 Difference]: Start difference. First operand 443 states and 1424 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:41,959 INFO L93 Difference]: Finished difference Result 946 states and 2850 transitions.
[2022-02-09 02:17:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:41,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:41,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:41,962 INFO L225 Difference]: With dead ends: 946
[2022-02-09 02:17:41,962 INFO L226 Difference]: Without dead ends: 822
[2022-02-09 02:17:41,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:41,962 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 76 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:41,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 87 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states.
[2022-02-09 02:17:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 412.
[2022-02-09 02:17:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 3.236009732360097) internal successors, (1330), 411 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1330 transitions.
[2022-02-09 02:17:41,973 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1330 transitions. Word has length 21
[2022-02-09 02:17:41,973 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:41,973 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 1330 transitions.
[2022-02-09 02:17:41,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1330 transitions.
[2022-02-09 02:17:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:41,974 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:41,974 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]
[2022-02-09 02:17:41,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2022-02-09 02:17:41,974 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash 933914859, now seen corresponding path program 57 times
[2022-02-09 02:17:41,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:41,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713478780]
[2022-02-09 02:17:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:41,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,113 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 02:17:42,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713478780]
[2022-02-09 02:17:42,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713478780] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:42,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965085384]
[2022-02-09 02:17:42,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:42,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:42,114 INFO L87 Difference]: Start difference. First operand 412 states and 1330 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,210 INFO L93 Difference]: Finished difference Result 905 states and 2737 transitions.
[2022-02-09 02:17:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,213 INFO L225 Difference]: With dead ends: 905
[2022-02-09 02:17:42,213 INFO L226 Difference]: Without dead ends: 795
[2022-02-09 02:17:42,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,213 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 70 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 105 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 02:17:42,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 105 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states.
[2022-02-09 02:17:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 434.
[2022-02-09 02:17:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 433 states have (on average 3.203233256351039) internal successors, (1387), 433 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1387 transitions.
[2022-02-09 02:17:42,223 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1387 transitions. Word has length 21
[2022-02-09 02:17:42,223 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,223 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 1387 transitions.
[2022-02-09 02:17:42,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1387 transitions.
[2022-02-09 02:17:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:42,225 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,225 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]
[2022-02-09 02:17:42,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2022-02-09 02:17:42,225 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:42,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash -84029205, now seen corresponding path program 58 times
[2022-02-09 02:17:42,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630305012]
[2022-02-09 02:17:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,348 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 02:17:42,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630305012]
[2022-02-09 02:17:42,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630305012] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:42,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204920370]
[2022-02-09 02:17:42,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:42,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:42,350 INFO L87 Difference]: Start difference. First operand 434 states and 1387 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,451 INFO L93 Difference]: Finished difference Result 822 states and 2499 transitions.
[2022-02-09 02:17:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,453 INFO L225 Difference]: With dead ends: 822
[2022-02-09 02:17:42,453 INFO L226 Difference]: Without dead ends: 709
[2022-02-09 02:17:42,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,454 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 67 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 102 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 02:17:42,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 102 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states.
[2022-02-09 02:17:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 412.
[2022-02-09 02:17:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 3.2092457420924574) internal successors, (1319), 411 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1319 transitions.
[2022-02-09 02:17:42,465 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1319 transitions. Word has length 21
[2022-02-09 02:17:42,465 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,465 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 1319 transitions.
[2022-02-09 02:17:42,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1319 transitions.
[2022-02-09 02:17:42,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:42,466 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2022-02-09 02:17:42,467 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash -995334579, now seen corresponding path program 59 times
[2022-02-09 02:17:42,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083617539]
[2022-02-09 02:17:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,590 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 02:17:42,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083617539]
[2022-02-09 02:17:42,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083617539] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:42,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790943074]
[2022-02-09 02:17:42,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:42,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:42,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:42,592 INFO L87 Difference]: Start difference. First operand 412 states and 1319 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,698 INFO L93 Difference]: Finished difference Result 880 states and 2648 transitions.
[2022-02-09 02:17:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:42,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,701 INFO L225 Difference]: With dead ends: 880
[2022-02-09 02:17:42,701 INFO L226 Difference]: Without dead ends: 787
[2022-02-09 02:17:42,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,701 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 69 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 110 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 02:17:42,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 110 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states.
[2022-02-09 02:17:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 426.
[2022-02-09 02:17:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 3.1905882352941175) internal successors, (1356), 425 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1356 transitions.
[2022-02-09 02:17:42,712 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1356 transitions. Word has length 21
[2022-02-09 02:17:42,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,712 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1356 transitions.
[2022-02-09 02:17:42,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,712 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1356 transitions.
[2022-02-09 02:17:42,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:42,713 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2022-02-09 02:17:42,714 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1323717461, now seen corresponding path program 60 times
[2022-02-09 02:17:42,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696186917]
[2022-02-09 02:17:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:42,818 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 02:17:42,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:42,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696186917]
[2022-02-09 02:17:42,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696186917] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:42,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:42,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:42,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829642322]
[2022-02-09 02:17:42,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:42,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:42,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:42,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:42,824 INFO L87 Difference]: Start difference. First operand 426 states and 1356 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:42,909 INFO L93 Difference]: Finished difference Result 814 states and 2468 transitions.
[2022-02-09 02:17:42,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:42,911 INFO L225 Difference]: With dead ends: 814
[2022-02-09 02:17:42,911 INFO L226 Difference]: Without dead ends: 690
[2022-02-09 02:17:42,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:42,911 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 67 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 93 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 02:17:42,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 93 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:42,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states.
[2022-02-09 02:17:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 393.
[2022-02-09 02:17:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 3.2448979591836733) internal successors, (1272), 392 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1272 transitions.
[2022-02-09 02:17:42,919 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 1272 transitions. Word has length 21
[2022-02-09 02:17:42,919 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:42,919 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 1272 transitions.
[2022-02-09 02:17:42,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 1272 transitions.
[2022-02-09 02:17:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:42,920 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:42,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:42,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2022-02-09 02:17:42,920 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash 853574447, now seen corresponding path program 61 times
[2022-02-09 02:17:42,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:42,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284926351]
[2022-02-09 02:17:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:42,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284926351]
[2022-02-09 02:17:43,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284926351] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:43,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928968322]
[2022-02-09 02:17:43,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:43,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:43,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:43,023 INFO L87 Difference]: Start difference. First operand 393 states and 1272 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,119 INFO L93 Difference]: Finished difference Result 825 states and 2485 transitions.
[2022-02-09 02:17:43,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:43,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:43,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,121 INFO L225 Difference]: With dead ends: 825
[2022-02-09 02:17:43,121 INFO L226 Difference]: Without dead ends: 746
[2022-02-09 02:17:43,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,121 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 69 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 103 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states.
[2022-02-09 02:17:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 417.
[2022-02-09 02:17:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 3.25) internal successors, (1352), 416 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 1352 transitions.
[2022-02-09 02:17:43,131 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 1352 transitions. Word has length 21
[2022-02-09 02:17:43,131 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,131 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 1352 transitions.
[2022-02-09 02:17:43,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 1352 transitions.
[2022-02-09 02:17:43,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:43,132 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,132 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]
[2022-02-09 02:17:43,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2022-02-09 02:17:43,133 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:43,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,133 INFO L85 PathProgramCache]: Analyzing trace with hash 525191565, now seen corresponding path program 62 times
[2022-02-09 02:17:43,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676383689]
[2022-02-09 02:17:43,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676383689]
[2022-02-09 02:17:43,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676383689] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:43,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506588649]
[2022-02-09 02:17:43,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:43,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:43,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:43,235 INFO L87 Difference]: Start difference. First operand 417 states and 1352 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,320 INFO L93 Difference]: Finished difference Result 856 states and 2572 transitions.
[2022-02-09 02:17:43,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:43,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:43,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,322 INFO L225 Difference]: With dead ends: 856
[2022-02-09 02:17:43,322 INFO L226 Difference]: Without dead ends: 730
[2022-02-09 02:17:43,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,322 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 78 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 96 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states.
[2022-02-09 02:17:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 401.
[2022-02-09 02:17:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 3.24) internal successors, (1296), 400 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1296 transitions.
[2022-02-09 02:17:43,330 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1296 transitions. Word has length 21
[2022-02-09 02:17:43,330 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,330 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 1296 transitions.
[2022-02-09 02:17:43,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1296 transitions.
[2022-02-09 02:17:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:43,331 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,331 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]
[2022-02-09 02:17:43,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2022-02-09 02:17:43,332 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2046040879, now seen corresponding path program 63 times
[2022-02-09 02:17:43,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075786154]
[2022-02-09 02:17:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075786154]
[2022-02-09 02:17:43,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075786154] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:43,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944401101]
[2022-02-09 02:17:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:43,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:43,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:43,440 INFO L87 Difference]: Start difference. First operand 401 states and 1296 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,514 INFO L93 Difference]: Finished difference Result 829 states and 2489 transitions.
[2022-02-09 02:17:43,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:43,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:43,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,516 INFO L225 Difference]: With dead ends: 829
[2022-02-09 02:17:43,516 INFO L226 Difference]: Without dead ends: 750
[2022-02-09 02:17:43,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,518 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 71 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 104 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 02:17:43,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 104 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states.
[2022-02-09 02:17:43,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 409.
[2022-02-09 02:17:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 3.2254901960784315) internal successors, (1316), 408 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 1316 transitions.
[2022-02-09 02:17:43,529 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 1316 transitions. Word has length 21
[2022-02-09 02:17:43,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,529 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 1316 transitions.
[2022-02-09 02:17:43,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1316 transitions.
[2022-02-09 02:17:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:43,530 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:43,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2022-02-09 02:17:43,531 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:43,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 991871791, now seen corresponding path program 64 times
[2022-02-09 02:17:43,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071900994]
[2022-02-09 02:17:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,629 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 02:17:43,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071900994]
[2022-02-09 02:17:43,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071900994] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:43,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979900812]
[2022-02-09 02:17:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:43,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:43,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:43,630 INFO L87 Difference]: Start difference. First operand 409 states and 1316 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,716 INFO L93 Difference]: Finished difference Result 777 states and 2360 transitions.
[2022-02-09 02:17:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,718 INFO L225 Difference]: With dead ends: 777
[2022-02-09 02:17:43,718 INFO L226 Difference]: Without dead ends: 678
[2022-02-09 02:17:43,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,718 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 67 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 102 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 02:17:43,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 102 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states.
[2022-02-09 02:17:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 401.
[2022-02-09 02:17:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 3.23) internal successors, (1292), 400 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1292 transitions.
[2022-02-09 02:17:43,726 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1292 transitions. Word has length 21
[2022-02-09 02:17:43,727 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,727 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 1292 transitions.
[2022-02-09 02:17:43,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1292 transitions.
[2022-02-09 02:17:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:43,728 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,728 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]
[2022-02-09 02:17:43,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2022-02-09 02:17:43,728 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1926116851, now seen corresponding path program 65 times
[2022-02-09 02:17:43,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055821437]
[2022-02-09 02:17:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:43,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:43,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055821437]
[2022-02-09 02:17:43,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055821437] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:43,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:43,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:43,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104246361]
[2022-02-09 02:17:43,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:43,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:43,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:43,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:43,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:43,843 INFO L87 Difference]: Start difference. First operand 401 states and 1292 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:43,916 INFO L93 Difference]: Finished difference Result 805 states and 2409 transitions.
[2022-02-09 02:17:43,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:43,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:43,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:43,918 INFO L225 Difference]: With dead ends: 805
[2022-02-09 02:17:43,918 INFO L226 Difference]: Without dead ends: 695
[2022-02-09 02:17:43,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:43,918 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 81 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:43,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 89 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states.
[2022-02-09 02:17:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 423.
[2022-02-09 02:17:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 3.1966824644549763) internal successors, (1349), 422 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1349 transitions.
[2022-02-09 02:17:43,940 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1349 transitions. Word has length 21
[2022-02-09 02:17:43,940 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:43,940 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1349 transitions.
[2022-02-09 02:17:43,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1349 transitions.
[2022-02-09 02:17:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:43,941 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:43,941 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]
[2022-02-09 02:17:43,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2022-02-09 02:17:43,941 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash 799921903, now seen corresponding path program 66 times
[2022-02-09 02:17:43,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:43,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960851763]
[2022-02-09 02:17:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:43,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,056 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 02:17:44,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960851763]
[2022-02-09 02:17:44,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960851763] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:44,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183942923]
[2022-02-09 02:17:44,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:44,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:44,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:44,057 INFO L87 Difference]: Start difference. First operand 423 states and 1349 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,138 INFO L93 Difference]: Finished difference Result 722 states and 2171 transitions.
[2022-02-09 02:17:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:44,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:44,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,139 INFO L225 Difference]: With dead ends: 722
[2022-02-09 02:17:44,139 INFO L226 Difference]: Without dead ends: 601
[2022-02-09 02:17:44,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,139 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 59 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 108 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 02:17:44,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 108 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states.
[2022-02-09 02:17:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 393.
[2022-02-09 02:17:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 3.2346938775510203) internal successors, (1268), 392 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1268 transitions.
[2022-02-09 02:17:44,146 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 1268 transitions. Word has length 21
[2022-02-09 02:17:44,146 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,146 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 1268 transitions.
[2022-02-09 02:17:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,147 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 1268 transitions.
[2022-02-09 02:17:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:44,147 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,147 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]
[2022-02-09 02:17:44,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2022-02-09 02:17:44,148 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1835922061, now seen corresponding path program 67 times
[2022-02-09 02:17:44,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237562188]
[2022-02-09 02:17:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237562188]
[2022-02-09 02:17:44,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237562188] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:44,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237580229]
[2022-02-09 02:17:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:44,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:44,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:44,248 INFO L87 Difference]: Start difference. First operand 393 states and 1268 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,313 INFO L93 Difference]: Finished difference Result 788 states and 2359 transitions.
[2022-02-09 02:17:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:44,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,315 INFO L225 Difference]: With dead ends: 788
[2022-02-09 02:17:44,315 INFO L226 Difference]: Without dead ends: 709
[2022-02-09 02:17:44,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,315 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 73 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:44,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 104 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states.
[2022-02-09 02:17:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 405.
[2022-02-09 02:17:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.227722772277228) internal successors, (1304), 404 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1304 transitions.
[2022-02-09 02:17:44,323 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1304 transitions. Word has length 21
[2022-02-09 02:17:44,324 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,324 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1304 transitions.
[2022-02-09 02:17:44,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1304 transitions.
[2022-02-09 02:17:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:44,325 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:44,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2022-02-09 02:17:44,325 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash 344427149, now seen corresponding path program 68 times
[2022-02-09 02:17:44,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743011009]
[2022-02-09 02:17:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,424 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 02:17:44,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743011009]
[2022-02-09 02:17:44,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743011009] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:44,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504465821]
[2022-02-09 02:17:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:44,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:44,426 INFO L87 Difference]: Start difference. First operand 405 states and 1304 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,509 INFO L93 Difference]: Finished difference Result 802 states and 2396 transitions.
[2022-02-09 02:17:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,511 INFO L225 Difference]: With dead ends: 802
[2022-02-09 02:17:44,511 INFO L226 Difference]: Without dead ends: 701
[2022-02-09 02:17:44,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,512 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 90 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:44,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 88 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states.
[2022-02-09 02:17:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 397.
[2022-02-09 02:17:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 3.2323232323232323) internal successors, (1280), 396 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 1280 transitions.
[2022-02-09 02:17:44,520 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 1280 transitions. Word has length 21
[2022-02-09 02:17:44,520 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,520 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 1280 transitions.
[2022-02-09 02:17:44,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,520 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1280 transitions.
[2022-02-09 02:17:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:44,521 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,522 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]
[2022-02-09 02:17:44,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2022-02-09 02:17:44,522 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1377982609, now seen corresponding path program 69 times
[2022-02-09 02:17:44,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645085495]
[2022-02-09 02:17:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645085495]
[2022-02-09 02:17:44,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645085495] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:44,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402703992]
[2022-02-09 02:17:44,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:44,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:44,622 INFO L87 Difference]: Start difference. First operand 397 states and 1280 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,702 INFO L93 Difference]: Finished difference Result 800 states and 2395 transitions.
[2022-02-09 02:17:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:44,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,704 INFO L225 Difference]: With dead ends: 800
[2022-02-09 02:17:44,704 INFO L226 Difference]: Without dead ends: 721
[2022-02-09 02:17:44,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,705 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 73 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:44,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 98 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states.
[2022-02-09 02:17:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 405.
[2022-02-09 02:17:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.217821782178218) internal successors, (1300), 404 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1300 transitions.
[2022-02-09 02:17:44,713 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1300 transitions. Word has length 21
[2022-02-09 02:17:44,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,714 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1300 transitions.
[2022-02-09 02:17:44,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1300 transitions.
[2022-02-09 02:17:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:44,715 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,715 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]
[2022-02-09 02:17:44,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2022-02-09 02:17:44,715 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:44,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash 145074829, now seen corresponding path program 70 times
[2022-02-09 02:17:44,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818880381]
[2022-02-09 02:17:44,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:44,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:44,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818880381]
[2022-02-09 02:17:44,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818880381] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:44,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:44,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:44,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10317630]
[2022-02-09 02:17:44,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:44,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:44,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:44,814 INFO L87 Difference]: Start difference. First operand 405 states and 1300 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:44,910 INFO L93 Difference]: Finished difference Result 748 states and 2266 transitions.
[2022-02-09 02:17:44,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:44,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:44,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:44,912 INFO L225 Difference]: With dead ends: 748
[2022-02-09 02:17:44,913 INFO L226 Difference]: Without dead ends: 649
[2022-02-09 02:17:44,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:44,913 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 108 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 02:17:44,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 108 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states.
[2022-02-09 02:17:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 397.
[2022-02-09 02:17:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 3.2222222222222223) internal successors, (1276), 396 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 1276 transitions.
[2022-02-09 02:17:44,923 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 1276 transitions. Word has length 21
[2022-02-09 02:17:44,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:44,924 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 1276 transitions.
[2022-02-09 02:17:44,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1276 transitions.
[2022-02-09 02:17:44,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:44,925 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:44,925 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]
[2022-02-09 02:17:44,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2022-02-09 02:17:44,925 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash 900215437, now seen corresponding path program 71 times
[2022-02-09 02:17:44,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:44,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479959830]
[2022-02-09 02:17:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:44,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479959830]
[2022-02-09 02:17:45,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479959830] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875161520]
[2022-02-09 02:17:45,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,021 INFO L87 Difference]: Start difference. First operand 397 states and 1276 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,089 INFO L93 Difference]: Finished difference Result 776 states and 2315 transitions.
[2022-02-09 02:17:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:45,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,091 INFO L225 Difference]: With dead ends: 776
[2022-02-09 02:17:45,091 INFO L226 Difference]: Without dead ends: 683
[2022-02-09 02:17:45,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,091 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 77 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 92 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states.
[2022-02-09 02:17:45,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 411.
[2022-02-09 02:17:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 3.202439024390244) internal successors, (1313), 410 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 1313 transitions.
[2022-02-09 02:17:45,097 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 1313 transitions. Word has length 21
[2022-02-09 02:17:45,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,098 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 1313 transitions.
[2022-02-09 02:17:45,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 1313 transitions.
[2022-02-09 02:17:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:45,098 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:45,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2022-02-09 02:17:45,099 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:45,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash -689719313, now seen corresponding path program 72 times
[2022-02-09 02:17:45,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382015551]
[2022-02-09 02:17:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382015551]
[2022-02-09 02:17:45,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382015551] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388629327]
[2022-02-09 02:17:45,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,198 INFO L87 Difference]: Start difference. First operand 411 states and 1313 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,276 INFO L93 Difference]: Finished difference Result 710 states and 2135 transitions.
[2022-02-09 02:17:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:45,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,277 INFO L225 Difference]: With dead ends: 710
[2022-02-09 02:17:45,278 INFO L226 Difference]: Without dead ends: 593
[2022-02-09 02:17:45,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,278 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 92 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states.
[2022-02-09 02:17:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 385.
[2022-02-09 02:17:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 3.2604166666666665) internal successors, (1252), 384 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 1252 transitions.
[2022-02-09 02:17:45,284 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 1252 transitions. Word has length 21
[2022-02-09 02:17:45,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,284 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 1252 transitions.
[2022-02-09 02:17:45,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 1252 transitions.
[2022-02-09 02:17:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:45,285 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,285 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]
[2022-02-09 02:17:45,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2022-02-09 02:17:45,285 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:45,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1640554035, now seen corresponding path program 73 times
[2022-02-09 02:17:45,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540284825]
[2022-02-09 02:17:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540284825]
[2022-02-09 02:17:45,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540284825] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495709097]
[2022-02-09 02:17:45,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,387 INFO L87 Difference]: Start difference. First operand 385 states and 1252 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,465 INFO L93 Difference]: Finished difference Result 760 states and 2275 transitions.
[2022-02-09 02:17:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:45,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,467 INFO L225 Difference]: With dead ends: 760
[2022-02-09 02:17:45,467 INFO L226 Difference]: Without dead ends: 673
[2022-02-09 02:17:45,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,467 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 79 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 84 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states.
[2022-02-09 02:17:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 393.
[2022-02-09 02:17:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 3.2448979591836733) internal successors, (1272), 392 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1272 transitions.
[2022-02-09 02:17:45,482 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 1272 transitions. Word has length 21
[2022-02-09 02:17:45,482 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,483 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 1272 transitions.
[2022-02-09 02:17:45,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 1272 transitions.
[2022-02-09 02:17:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:45,484 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,484 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]
[2022-02-09 02:17:45,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2022-02-09 02:17:45,484 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:45,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash 318168403, now seen corresponding path program 74 times
[2022-02-09 02:17:45,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947882524]
[2022-02-09 02:17:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,588 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 02:17:45,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947882524]
[2022-02-09 02:17:45,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947882524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652214871]
[2022-02-09 02:17:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,589 INFO L87 Difference]: Start difference. First operand 393 states and 1272 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,656 INFO L93 Difference]: Finished difference Result 752 states and 2239 transitions.
[2022-02-09 02:17:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:45,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:45,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,658 INFO L225 Difference]: With dead ends: 752
[2022-02-09 02:17:45,658 INFO L226 Difference]: Without dead ends: 665
[2022-02-09 02:17:45,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,658 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 66 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 94 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 02:17:45,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 94 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states.
[2022-02-09 02:17:45,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 385.
[2022-02-09 02:17:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 3.25) internal successors, (1248), 384 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 1248 transitions.
[2022-02-09 02:17:45,664 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 1248 transitions. Word has length 21
[2022-02-09 02:17:45,664 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,664 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 1248 transitions.
[2022-02-09 02:17:45,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 1248 transitions.
[2022-02-09 02:17:45,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:45,665 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:45,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2022-02-09 02:17:45,665 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash 611076267, now seen corresponding path program 75 times
[2022-02-09 02:17:45,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329359260]
[2022-02-09 02:17:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:45,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329359260]
[2022-02-09 02:17:45,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329359260] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578259246]
[2022-02-09 02:17:45,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,770 INFO L87 Difference]: Start difference. First operand 385 states and 1248 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:45,858 INFO L93 Difference]: Finished difference Result 803 states and 2410 transitions.
[2022-02-09 02:17:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:45,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:45,860 INFO L225 Difference]: With dead ends: 803
[2022-02-09 02:17:45,860 INFO L226 Difference]: Without dead ends: 716
[2022-02-09 02:17:45,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:45,860 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 75 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:45,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:45,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states.
[2022-02-09 02:17:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 405.
[2022-02-09 02:17:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.237623762376238) internal successors, (1308), 404 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1308 transitions.
[2022-02-09 02:17:45,869 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1308 transitions. Word has length 21
[2022-02-09 02:17:45,870 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:45,870 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1308 transitions.
[2022-02-09 02:17:45,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1308 transitions.
[2022-02-09 02:17:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:45,871 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:45,871 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]
[2022-02-09 02:17:45,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2022-02-09 02:17:45,871 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:45,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash -664247539, now seen corresponding path program 76 times
[2022-02-09 02:17:45,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:45,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329192257]
[2022-02-09 02:17:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:45,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:45,984 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 02:17:45,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:45,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329192257]
[2022-02-09 02:17:45,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329192257] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:45,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:45,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:45,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358496444]
[2022-02-09 02:17:45,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:45,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:45,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:45,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:45,985 INFO L87 Difference]: Start difference. First operand 405 states and 1308 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,069 INFO L93 Difference]: Finished difference Result 826 states and 2465 transitions.
[2022-02-09 02:17:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:46,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:46,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,071 INFO L225 Difference]: With dead ends: 826
[2022-02-09 02:17:46,071 INFO L226 Difference]: Without dead ends: 696
[2022-02-09 02:17:46,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,072 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 95 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 02:17:46,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 95 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states.
[2022-02-09 02:17:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 385.
[2022-02-09 02:17:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 3.2291666666666665) internal successors, (1240), 384 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 1240 transitions.
[2022-02-09 02:17:46,083 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 1240 transitions. Word has length 21
[2022-02-09 02:17:46,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,083 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 1240 transitions.
[2022-02-09 02:17:46,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 1240 transitions.
[2022-02-09 02:17:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:46,084 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,084 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]
[2022-02-09 02:17:46,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2022-02-09 02:17:46,085 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash -34971087, now seen corresponding path program 77 times
[2022-02-09 02:17:46,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757325465]
[2022-02-09 02:17:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757325465]
[2022-02-09 02:17:46,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757325465] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:46,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945317520]
[2022-02-09 02:17:46,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:46,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:46,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:46,188 INFO L87 Difference]: Start difference. First operand 385 states and 1240 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,258 INFO L93 Difference]: Finished difference Result 783 states and 2330 transitions.
[2022-02-09 02:17:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:46,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,259 INFO L225 Difference]: With dead ends: 783
[2022-02-09 02:17:46,259 INFO L226 Difference]: Without dead ends: 704
[2022-02-09 02:17:46,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,260 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 79 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 82 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:46,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states.
[2022-02-09 02:17:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 401.
[2022-02-09 02:17:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 3.22) internal successors, (1288), 400 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1288 transitions.
[2022-02-09 02:17:46,266 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1288 transitions. Word has length 21
[2022-02-09 02:17:46,266 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,266 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 1288 transitions.
[2022-02-09 02:17:46,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1288 transitions.
[2022-02-09 02:17:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:46,267 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:46,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2022-02-09 02:17:46,269 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:46,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1624905837, now seen corresponding path program 78 times
[2022-02-09 02:17:46,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350999703]
[2022-02-09 02:17:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350999703]
[2022-02-09 02:17:46,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350999703] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:46,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144515976]
[2022-02-09 02:17:46,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:46,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:46,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:46,374 INFO L87 Difference]: Start difference. First operand 401 states and 1288 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,444 INFO L93 Difference]: Finished difference Result 814 states and 2417 transitions.
[2022-02-09 02:17:46,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,446 INFO L225 Difference]: With dead ends: 814
[2022-02-09 02:17:46,446 INFO L226 Difference]: Without dead ends: 680
[2022-02-09 02:17:46,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,446 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 87 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states.
[2022-02-09 02:17:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 377.
[2022-02-09 02:17:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 3.234042553191489) internal successors, (1216), 376 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 1216 transitions.
[2022-02-09 02:17:46,452 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 1216 transitions. Word has length 21
[2022-02-09 02:17:46,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,452 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 1216 transitions.
[2022-02-09 02:17:46,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 1216 transitions.
[2022-02-09 02:17:46,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:46,453 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,453 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]
[2022-02-09 02:17:46,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2022-02-09 02:17:46,453 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:46,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1858386381, now seen corresponding path program 79 times
[2022-02-09 02:17:46,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534778340]
[2022-02-09 02:17:46,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534778340]
[2022-02-09 02:17:46,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534778340] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:46,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419885831]
[2022-02-09 02:17:46,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:46,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:46,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:46,566 INFO L87 Difference]: Start difference. First operand 377 states and 1216 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,658 INFO L93 Difference]: Finished difference Result 796 states and 2387 transitions.
[2022-02-09 02:17:46,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:46,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:46,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,660 INFO L225 Difference]: With dead ends: 796
[2022-02-09 02:17:46,660 INFO L226 Difference]: Without dead ends: 709
[2022-02-09 02:17:46,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,661 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 72 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 95 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states.
[2022-02-09 02:17:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 389.
[2022-02-09 02:17:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 3.2268041237113403) internal successors, (1252), 388 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 1252 transitions.
[2022-02-09 02:17:46,670 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 1252 transitions. Word has length 21
[2022-02-09 02:17:46,670 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,670 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 1252 transitions.
[2022-02-09 02:17:46,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 1252 transitions.
[2022-02-09 02:17:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:46,671 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,671 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]
[2022-02-09 02:17:46,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2022-02-09 02:17:46,671 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:46,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,672 INFO L85 PathProgramCache]: Analyzing trace with hash -477858477, now seen corresponding path program 80 times
[2022-02-09 02:17:46,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265937149]
[2022-02-09 02:17:46,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:46,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265937149]
[2022-02-09 02:17:46,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265937149] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:46,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974580238]
[2022-02-09 02:17:46,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:46,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:46,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:46,787 INFO L87 Difference]: Start difference. First operand 389 states and 1252 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:46,864 INFO L93 Difference]: Finished difference Result 788 states and 2351 transitions.
[2022-02-09 02:17:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:46,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:46,866 INFO L225 Difference]: With dead ends: 788
[2022-02-09 02:17:46,866 INFO L226 Difference]: Without dead ends: 701
[2022-02-09 02:17:46,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:46,867 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 76 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:46,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 91 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states.
[2022-02-09 02:17:46,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 381.
[2022-02-09 02:17:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 3.231578947368421) internal successors, (1228), 380 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 1228 transitions.
[2022-02-09 02:17:46,875 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 1228 transitions. Word has length 21
[2022-02-09 02:17:46,875 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 1228 transitions.
[2022-02-09 02:17:46,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 1228 transitions.
[2022-02-09 02:17:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:46,876 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:46,876 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]
[2022-02-09 02:17:46,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2022-02-09 02:17:46,876 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:46,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1880792627, now seen corresponding path program 81 times
[2022-02-09 02:17:46,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:46,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447497734]
[2022-02-09 02:17:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:46,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:46,980 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 02:17:46,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:46,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447497734]
[2022-02-09 02:17:46,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447497734] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:46,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:46,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:46,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965329247]
[2022-02-09 02:17:46,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:46,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:46,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:46,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:46,981 INFO L87 Difference]: Start difference. First operand 381 states and 1228 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,047 INFO L93 Difference]: Finished difference Result 788 states and 2363 transitions.
[2022-02-09 02:17:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,057 INFO L225 Difference]: With dead ends: 788
[2022-02-09 02:17:47,057 INFO L226 Difference]: Without dead ends: 701
[2022-02-09 02:17:47,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,058 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 84 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:47,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states.
[2022-02-09 02:17:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 393.
[2022-02-09 02:17:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 3.2142857142857144) internal successors, (1260), 392 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1260 transitions.
[2022-02-09 02:17:47,065 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 1260 transitions. Word has length 21
[2022-02-09 02:17:47,065 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,065 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 1260 transitions.
[2022-02-09 02:17:47,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 1260 transitions.
[2022-02-09 02:17:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,066 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,066 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]
[2022-02-09 02:17:47,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2022-02-09 02:17:47,066 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,067 INFO L85 PathProgramCache]: Analyzing trace with hash -176395473, now seen corresponding path program 82 times
[2022-02-09 02:17:47,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359614450]
[2022-02-09 02:17:47,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359614450]
[2022-02-09 02:17:47,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359614450] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:47,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295575978]
[2022-02-09 02:17:47,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:47,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:47,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:47,171 INFO L87 Difference]: Start difference. First operand 393 states and 1260 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,246 INFO L93 Difference]: Finished difference Result 728 states and 2202 transitions.
[2022-02-09 02:17:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,248 INFO L225 Difference]: With dead ends: 728
[2022-02-09 02:17:47,248 INFO L226 Difference]: Without dead ends: 625
[2022-02-09 02:17:47,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,249 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 69 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 87 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states.
[2022-02-09 02:17:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 381.
[2022-02-09 02:17:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 3.221052631578947) internal successors, (1224), 380 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 1224 transitions.
[2022-02-09 02:17:47,258 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 1224 transitions. Word has length 21
[2022-02-09 02:17:47,258 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,258 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 1224 transitions.
[2022-02-09 02:17:47,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 1224 transitions.
[2022-02-09 02:17:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,259 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,259 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]
[2022-02-09 02:17:47,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2022-02-09 02:17:47,260 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1768127315, now seen corresponding path program 83 times
[2022-02-09 02:17:47,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193230612]
[2022-02-09 02:17:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,356 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 02:17:47,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193230612]
[2022-02-09 02:17:47,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193230612] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:47,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484211307]
[2022-02-09 02:17:47,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:47,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:47,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:47,357 INFO L87 Difference]: Start difference. First operand 381 states and 1224 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,431 INFO L93 Difference]: Finished difference Result 776 states and 2315 transitions.
[2022-02-09 02:17:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,433 INFO L225 Difference]: With dead ends: 776
[2022-02-09 02:17:47,433 INFO L226 Difference]: Without dead ends: 697
[2022-02-09 02:17:47,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,433 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 72 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 89 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:47,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states.
[2022-02-09 02:17:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 389.
[2022-02-09 02:17:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 3.2061855670103094) internal successors, (1244), 388 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 1244 transitions.
[2022-02-09 02:17:47,442 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 1244 transitions. Word has length 21
[2022-02-09 02:17:47,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,442 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 1244 transitions.
[2022-02-09 02:17:47,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 1244 transitions.
[2022-02-09 02:17:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,443 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2022-02-09 02:17:47,443 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 220204981, now seen corresponding path program 84 times
[2022-02-09 02:17:47,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370784370]
[2022-02-09 02:17:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370784370]
[2022-02-09 02:17:47,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370784370] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:47,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419929839]
[2022-02-09 02:17:47,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:47,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:47,542 INFO L87 Difference]: Start difference. First operand 389 states and 1244 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,610 INFO L93 Difference]: Finished difference Result 724 states and 2186 transitions.
[2022-02-09 02:17:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,611 INFO L225 Difference]: With dead ends: 724
[2022-02-09 02:17:47,611 INFO L226 Difference]: Without dead ends: 621
[2022-02-09 02:17:47,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,611 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 86 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states.
[2022-02-09 02:17:47,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 377.
[2022-02-09 02:17:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 3.228723404255319) internal successors, (1214), 376 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 1214 transitions.
[2022-02-09 02:17:47,619 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 1214 transitions. Word has length 21
[2022-02-09 02:17:47,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,619 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 1214 transitions.
[2022-02-09 02:17:47,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 1214 transitions.
[2022-02-09 02:17:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,620 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2022-02-09 02:17:47,620 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1454233301, now seen corresponding path program 85 times
[2022-02-09 02:17:47,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605693609]
[2022-02-09 02:17:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,724 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 02:17:47,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605693609]
[2022-02-09 02:17:47,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605693609] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:47,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198714219]
[2022-02-09 02:17:47,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:47,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:47,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:47,725 INFO L87 Difference]: Start difference. First operand 377 states and 1214 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,799 INFO L93 Difference]: Finished difference Result 791 states and 2360 transitions.
[2022-02-09 02:17:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,800 INFO L225 Difference]: With dead ends: 791
[2022-02-09 02:17:47,800 INFO L226 Difference]: Without dead ends: 704
[2022-02-09 02:17:47,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,801 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 96 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:47,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states.
[2022-02-09 02:17:47,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 377.
[2022-02-09 02:17:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 3.1968085106382977) internal successors, (1202), 376 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 1202 transitions.
[2022-02-09 02:17:47,809 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 1202 transitions. Word has length 21
[2022-02-09 02:17:47,809 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,809 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 1202 transitions.
[2022-02-09 02:17:47,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 1202 transitions.
[2022-02-09 02:17:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,810 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,810 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]
[2022-02-09 02:17:47,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88
[2022-02-09 02:17:47,810 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1565410189, now seen corresponding path program 86 times
[2022-02-09 02:17:47,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602993681]
[2022-02-09 02:17:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:47,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:47,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602993681]
[2022-02-09 02:17:47,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602993681] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:47,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:47,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:47,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564315192]
[2022-02-09 02:17:47,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:47,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:47,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:47,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:47,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:47,912 INFO L87 Difference]: Start difference. First operand 377 states and 1202 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:47,975 INFO L93 Difference]: Finished difference Result 814 states and 2415 transitions.
[2022-02-09 02:17:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:47,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:47,977 INFO L225 Difference]: With dead ends: 814
[2022-02-09 02:17:47,977 INFO L226 Difference]: Without dead ends: 684
[2022-02-09 02:17:47,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:47,977 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:47,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 92 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states.
[2022-02-09 02:17:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 357.
[2022-02-09 02:17:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 3.1797752808988764) internal successors, (1132), 356 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 1132 transitions.
[2022-02-09 02:17:47,983 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 1132 transitions. Word has length 21
[2022-02-09 02:17:47,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:47,983 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 1132 transitions.
[2022-02-09 02:17:47,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 1132 transitions.
[2022-02-09 02:17:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:47,983 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:47,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:47,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89
[2022-02-09 02:17:47,984 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:47,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1661041267, now seen corresponding path program 87 times
[2022-02-09 02:17:47,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:47,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935639848]
[2022-02-09 02:17:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:47,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:48,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935639848]
[2022-02-09 02:17:48,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935639848] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:48,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891680404]
[2022-02-09 02:17:48,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:48,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:48,088 INFO L87 Difference]: Start difference. First operand 357 states and 1132 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,170 INFO L93 Difference]: Finished difference Result 740 states and 2191 transitions.
[2022-02-09 02:17:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:48,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:48,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,172 INFO L225 Difference]: With dead ends: 740
[2022-02-09 02:17:48,172 INFO L226 Difference]: Without dead ends: 653
[2022-02-09 02:17:48,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,173 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 78 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 93 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states.
[2022-02-09 02:17:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 369.
[2022-02-09 02:17:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 3.1630434782608696) internal successors, (1164), 368 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 1164 transitions.
[2022-02-09 02:17:48,181 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 1164 transitions. Word has length 21
[2022-02-09 02:17:48,181 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,181 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 1164 transitions.
[2022-02-09 02:17:48,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 1164 transitions.
[2022-02-09 02:17:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:48,182 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:48,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90
[2022-02-09 02:17:48,182 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:48,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1023192435, now seen corresponding path program 88 times
[2022-02-09 02:17:48,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176911011]
[2022-02-09 02:17:48,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,289 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 02:17:48,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176911011]
[2022-02-09 02:17:48,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176911011] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:48,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185543135]
[2022-02-09 02:17:48,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:48,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:48,290 INFO L87 Difference]: Start difference. First operand 369 states and 1164 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,376 INFO L93 Difference]: Finished difference Result 680 states and 2030 transitions.
[2022-02-09 02:17:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,378 INFO L225 Difference]: With dead ends: 680
[2022-02-09 02:17:48,378 INFO L226 Difference]: Without dead ends: 577
[2022-02-09 02:17:48,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,379 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 93 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states.
[2022-02-09 02:17:48,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 357.
[2022-02-09 02:17:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 3.162921348314607) internal successors, (1126), 356 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 1126 transitions.
[2022-02-09 02:17:48,386 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 1126 transitions. Word has length 21
[2022-02-09 02:17:48,386 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,386 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 1126 transitions.
[2022-02-09 02:17:48,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 1126 transitions.
[2022-02-09 02:17:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:48,387 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:48,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91
[2022-02-09 02:17:48,387 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1186431889, now seen corresponding path program 89 times
[2022-02-09 02:17:48,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242201923]
[2022-02-09 02:17:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:48,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242201923]
[2022-02-09 02:17:48,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242201923] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:48,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565909006]
[2022-02-09 02:17:48,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:48,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:48,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:48,485 INFO L87 Difference]: Start difference. First operand 357 states and 1126 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,562 INFO L93 Difference]: Finished difference Result 773 states and 2287 transitions.
[2022-02-09 02:17:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,564 INFO L225 Difference]: With dead ends: 773
[2022-02-09 02:17:48,564 INFO L226 Difference]: Without dead ends: 663
[2022-02-09 02:17:48,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,565 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 90 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states.
[2022-02-09 02:17:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 379.
[2022-02-09 02:17:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 3.1296296296296298) internal successors, (1183), 378 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 1183 transitions.
[2022-02-09 02:17:48,573 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 1183 transitions. Word has length 21
[2022-02-09 02:17:48,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,573 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 1183 transitions.
[2022-02-09 02:17:48,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 1183 transitions.
[2022-02-09 02:17:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:48,599 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,599 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]
[2022-02-09 02:17:48,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92
[2022-02-09 02:17:48,599 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1098495155, now seen corresponding path program 90 times
[2022-02-09 02:17:48,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982576531]
[2022-02-09 02:17:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,701 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 02:17:48,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982576531]
[2022-02-09 02:17:48,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982576531] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:48,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659176847]
[2022-02-09 02:17:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:48,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:48,702 INFO L87 Difference]: Start difference. First operand 379 states and 1183 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,793 INFO L93 Difference]: Finished difference Result 690 states and 2049 transitions.
[2022-02-09 02:17:48,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:48,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:48,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,795 INFO L225 Difference]: With dead ends: 690
[2022-02-09 02:17:48,795 INFO L226 Difference]: Without dead ends: 567
[2022-02-09 02:17:48,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,795 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 64 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 99 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 02:17:48,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 99 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states.
[2022-02-09 02:17:48,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 347.
[2022-02-09 02:17:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 3.1705202312138727) internal successors, (1097), 346 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 1097 transitions.
[2022-02-09 02:17:48,803 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 1097 transitions. Word has length 21
[2022-02-09 02:17:48,803 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,803 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 1097 transitions.
[2022-02-09 02:17:48,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 1097 transitions.
[2022-02-09 02:17:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:48,804 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:48,804 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]
[2022-02-09 02:17:48,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93
[2022-02-09 02:17:48,805 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:48,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:48,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1318117199, now seen corresponding path program 91 times
[2022-02-09 02:17:48,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:48,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130142327]
[2022-02-09 02:17:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:48,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:48,908 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 02:17:48,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:48,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130142327]
[2022-02-09 02:17:48,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130142327] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:48,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:48,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:48,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640743423]
[2022-02-09 02:17:48,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:48,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:48,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:48,910 INFO L87 Difference]: Start difference. First operand 347 states and 1097 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:48,988 INFO L93 Difference]: Finished difference Result 686 states and 2000 transitions.
[2022-02-09 02:17:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:48,990 INFO L225 Difference]: With dead ends: 686
[2022-02-09 02:17:48,990 INFO L226 Difference]: Without dead ends: 607
[2022-02-09 02:17:48,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:48,990 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 67 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:48,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 94 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states.
[2022-02-09 02:17:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 347.
[2022-02-09 02:17:48,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 3.147398843930636) internal successors, (1089), 346 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 1089 transitions.
[2022-02-09 02:17:48,998 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 1089 transitions. Word has length 21
[2022-02-09 02:17:48,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:48,999 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 1089 transitions.
[2022-02-09 02:17:48,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:48,999 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 1089 transitions.
[2022-02-09 02:17:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,000 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,000 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]
[2022-02-09 02:17:49,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94
[2022-02-09 02:17:49,000 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1386915347, now seen corresponding path program 92 times
[2022-02-09 02:17:49,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985345478]
[2022-02-09 02:17:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:49,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985345478]
[2022-02-09 02:17:49,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985345478] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:49,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129760198]
[2022-02-09 02:17:49,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:49,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:49,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:49,111 INFO L87 Difference]: Start difference. First operand 347 states and 1089 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,186 INFO L93 Difference]: Finished difference Result 717 states and 2087 transitions.
[2022-02-09 02:17:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:49,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,188 INFO L225 Difference]: With dead ends: 717
[2022-02-09 02:17:49,188 INFO L226 Difference]: Without dead ends: 591
[2022-02-09 02:17:49,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,188 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 88 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states.
[2022-02-09 02:17:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 331.
[2022-02-09 02:17:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 3.1303030303030304) internal successors, (1033), 330 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 1033 transitions.
[2022-02-09 02:17:49,197 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 1033 transitions. Word has length 21
[2022-02-09 02:17:49,197 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,197 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 1033 transitions.
[2022-02-09 02:17:49,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 1033 transitions.
[2022-02-09 02:17:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,198 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:49,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95
[2022-02-09 02:17:49,199 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1524925165, now seen corresponding path program 93 times
[2022-02-09 02:17:49,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13595977]
[2022-02-09 02:17:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:49,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13595977]
[2022-02-09 02:17:49,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13595977] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:49,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008258146]
[2022-02-09 02:17:49,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:49,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:49,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:49,305 INFO L87 Difference]: Start difference. First operand 331 states and 1033 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,377 INFO L93 Difference]: Finished difference Result 690 states and 2004 transitions.
[2022-02-09 02:17:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:49,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,379 INFO L225 Difference]: With dead ends: 690
[2022-02-09 02:17:49,379 INFO L226 Difference]: Without dead ends: 611
[2022-02-09 02:17:49,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,380 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 89 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states.
[2022-02-09 02:17:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 339.
[2022-02-09 02:17:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 3.1153846153846154) internal successors, (1053), 338 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 1053 transitions.
[2022-02-09 02:17:49,387 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 1053 transitions. Word has length 21
[2022-02-09 02:17:49,387 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,387 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 1053 transitions.
[2022-02-09 02:17:49,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 1053 transitions.
[2022-02-09 02:17:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,390 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,390 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]
[2022-02-09 02:17:49,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96
[2022-02-09 02:17:49,390 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,390 INFO L85 PathProgramCache]: Analyzing trace with hash 155571475, now seen corresponding path program 94 times
[2022-02-09 02:17:49,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460355795]
[2022-02-09 02:17:49,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:49,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460355795]
[2022-02-09 02:17:49,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460355795] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:49,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266925001]
[2022-02-09 02:17:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:49,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:49,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:49,493 INFO L87 Difference]: Start difference. First operand 339 states and 1053 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,577 INFO L93 Difference]: Finished difference Result 638 states and 1875 transitions.
[2022-02-09 02:17:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,579 INFO L225 Difference]: With dead ends: 638
[2022-02-09 02:17:49,579 INFO L226 Difference]: Without dead ends: 539
[2022-02-09 02:17:49,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,579 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 63 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 95 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states.
[2022-02-09 02:17:49,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 331.
[2022-02-09 02:17:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 3.118181818181818) internal successors, (1029), 330 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 1029 transitions.
[2022-02-09 02:17:49,587 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 1029 transitions. Word has length 21
[2022-02-09 02:17:49,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,587 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 1029 transitions.
[2022-02-09 02:17:49,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 1029 transitions.
[2022-02-09 02:17:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,588 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,588 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]
[2022-02-09 02:17:49,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97
[2022-02-09 02:17:49,588 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash -107763211, now seen corresponding path program 95 times
[2022-02-09 02:17:49,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342670421]
[2022-02-09 02:17:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,690 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 02:17:49,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342670421]
[2022-02-09 02:17:49,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342670421] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:49,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184605707]
[2022-02-09 02:17:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:49,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:49,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:49,691 INFO L87 Difference]: Start difference. First operand 331 states and 1029 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,764 INFO L93 Difference]: Finished difference Result 666 states and 1924 transitions.
[2022-02-09 02:17:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,766 INFO L225 Difference]: With dead ends: 666
[2022-02-09 02:17:49,766 INFO L226 Difference]: Without dead ends: 556
[2022-02-09 02:17:49,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,766 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 81 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:49,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states.
[2022-02-09 02:17:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 284.
[2022-02-09 02:17:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 3.0530035335689045) internal successors, (864), 283 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 864 transitions.
[2022-02-09 02:17:49,773 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 864 transitions. Word has length 21
[2022-02-09 02:17:49,773 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,773 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 864 transitions.
[2022-02-09 02:17:49,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 864 transitions.
[2022-02-09 02:17:49,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,774 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:49,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98
[2022-02-09 02:17:49,774 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1499907757, now seen corresponding path program 96 times
[2022-02-09 02:17:49,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948361664]
[2022-02-09 02:17:49,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:49,880 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 02:17:49,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:49,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948361664]
[2022-02-09 02:17:49,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948361664] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:49,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:49,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:49,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967989416]
[2022-02-09 02:17:49,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:49,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:49,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:49,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:49,881 INFO L87 Difference]: Start difference. First operand 284 states and 864 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:49,951 INFO L93 Difference]: Finished difference Result 583 states and 1686 transitions.
[2022-02-09 02:17:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:49,953 INFO L225 Difference]: With dead ends: 583
[2022-02-09 02:17:49,953 INFO L226 Difference]: Without dead ends: 458
[2022-02-09 02:17:49,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:49,953 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 81 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:49,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 77 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states.
[2022-02-09 02:17:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 250.
[2022-02-09 02:17:49,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 3.1204819277108435) internal successors, (777), 249 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 777 transitions.
[2022-02-09 02:17:49,958 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 777 transitions. Word has length 21
[2022-02-09 02:17:49,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:49,958 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 777 transitions.
[2022-02-09 02:17:49,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 777 transitions.
[2022-02-09 02:17:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:49,959 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:49,959 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]
[2022-02-09 02:17:49,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99
[2022-02-09 02:17:49,959 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:49,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:49,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1797665195, now seen corresponding path program 97 times
[2022-02-09 02:17:49,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:49,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402201703]
[2022-02-09 02:17:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:49,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402201703]
[2022-02-09 02:17:50,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402201703] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:50,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990561015]
[2022-02-09 02:17:50,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:50,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:50,050 INFO L87 Difference]: Start difference. First operand 250 states and 777 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,119 INFO L93 Difference]: Finished difference Result 513 states and 1487 transitions.
[2022-02-09 02:17:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:50,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,121 INFO L225 Difference]: With dead ends: 513
[2022-02-09 02:17:50,121 INFO L226 Difference]: Without dead ends: 426
[2022-02-09 02:17:50,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,121 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 75 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 69 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:50,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states.
[2022-02-09 02:17:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 258.
[2022-02-09 02:17:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 3.1011673151750974) internal successors, (797), 257 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 797 transitions.
[2022-02-09 02:17:50,125 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 797 transitions. Word has length 21
[2022-02-09 02:17:50,126 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,126 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 797 transitions.
[2022-02-09 02:17:50,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 797 transitions.
[2022-02-09 02:17:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:50,126 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100
[2022-02-09 02:17:50,127 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash -538579663, now seen corresponding path program 98 times
[2022-02-09 02:17:50,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247712740]
[2022-02-09 02:17:50,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247712740]
[2022-02-09 02:17:50,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247712740] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:50,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119176609]
[2022-02-09 02:17:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:50,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:50,234 INFO L87 Difference]: Start difference. First operand 258 states and 797 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,300 INFO L93 Difference]: Finished difference Result 505 states and 1451 transitions.
[2022-02-09 02:17:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:50,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,302 INFO L225 Difference]: With dead ends: 505
[2022-02-09 02:17:50,302 INFO L226 Difference]: Without dead ends: 418
[2022-02-09 02:17:50,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,302 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 74 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:50,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states.
[2022-02-09 02:17:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 250.
[2022-02-09 02:17:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 3.104417670682731) internal successors, (773), 249 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 773 transitions.
[2022-02-09 02:17:50,317 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 773 transitions. Word has length 21
[2022-02-09 02:17:50,318 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,318 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 773 transitions.
[2022-02-09 02:17:50,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,318 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 773 transitions.
[2022-02-09 02:17:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:50,318 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101
[2022-02-09 02:17:50,319 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:50,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1304835669, now seen corresponding path program 99 times
[2022-02-09 02:17:50,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715779809]
[2022-02-09 02:17:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,441 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 02:17:50,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715779809]
[2022-02-09 02:17:50,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715779809] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:50,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264031802]
[2022-02-09 02:17:50,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:50,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:50,443 INFO L87 Difference]: Start difference. First operand 250 states and 773 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,518 INFO L93 Difference]: Finished difference Result 531 states and 1544 transitions.
[2022-02-09 02:17:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:50,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,520 INFO L225 Difference]: With dead ends: 531
[2022-02-09 02:17:50,520 INFO L226 Difference]: Without dead ends: 444
[2022-02-09 02:17:50,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,520 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 74 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2022-02-09 02:17:50,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 262.
[2022-02-09 02:17:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 3.0842911877394634) internal successors, (805), 261 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 805 transitions.
[2022-02-09 02:17:50,529 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 805 transitions. Word has length 21
[2022-02-09 02:17:50,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,529 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 805 transitions.
[2022-02-09 02:17:50,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 805 transitions.
[2022-02-09 02:17:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:50,530 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102
[2022-02-09 02:17:50,530 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1057184653, now seen corresponding path program 100 times
[2022-02-09 02:17:50,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462339051]
[2022-02-09 02:17:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,640 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 02:17:50,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462339051]
[2022-02-09 02:17:50,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462339051] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:50,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435698096]
[2022-02-09 02:17:50,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:50,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:50,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:50,642 INFO L87 Difference]: Start difference. First operand 262 states and 805 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,707 INFO L93 Difference]: Finished difference Result 537 states and 1549 transitions.
[2022-02-09 02:17:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:50,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:50,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,709 INFO L225 Difference]: With dead ends: 537
[2022-02-09 02:17:50,709 INFO L226 Difference]: Without dead ends: 432
[2022-02-09 02:17:50,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,709 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 70 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 68 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:50,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2022-02-09 02:17:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 250.
[2022-02-09 02:17:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 3.0883534136546187) internal successors, (769), 249 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 769 transitions.
[2022-02-09 02:17:50,715 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 769 transitions. Word has length 21
[2022-02-09 02:17:50,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,715 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 769 transitions.
[2022-02-09 02:17:50,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 769 transitions.
[2022-02-09 02:17:50,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:50,716 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103
[2022-02-09 02:17:50,716 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1950883023, now seen corresponding path program 101 times
[2022-02-09 02:17:50,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758453934]
[2022-02-09 02:17:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:50,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:50,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758453934]
[2022-02-09 02:17:50,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758453934] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:50,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:50,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:50,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276356386]
[2022-02-09 02:17:50,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:50,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:50,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:50,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:50,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:50,836 INFO L87 Difference]: Start difference. First operand 250 states and 769 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:50,904 INFO L93 Difference]: Finished difference Result 511 states and 1468 transitions.
[2022-02-09 02:17:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:50,906 INFO L225 Difference]: With dead ends: 511
[2022-02-09 02:17:50,906 INFO L226 Difference]: Without dead ends: 432
[2022-02-09 02:17:50,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:50,906 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 65 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:50,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 76 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2022-02-09 02:17:50,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 258.
[2022-02-09 02:17:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 3.0700389105058368) internal successors, (789), 257 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 789 transitions.
[2022-02-09 02:17:50,911 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 789 transitions. Word has length 21
[2022-02-09 02:17:50,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:50,912 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 789 transitions.
[2022-02-09 02:17:50,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 789 transitions.
[2022-02-09 02:17:50,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:50,912 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:50,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:50,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104
[2022-02-09 02:17:50,913 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash 775155731, now seen corresponding path program 102 times
[2022-02-09 02:17:50,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:50,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013802755]
[2022-02-09 02:17:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:50,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,013 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 02:17:51,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013802755]
[2022-02-09 02:17:51,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013802755] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414813382]
[2022-02-09 02:17:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,015 INFO L87 Difference]: Start difference. First operand 258 states and 789 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,091 INFO L93 Difference]: Finished difference Result 525 states and 1505 transitions.
[2022-02-09 02:17:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,092 INFO L225 Difference]: With dead ends: 525
[2022-02-09 02:17:51,092 INFO L226 Difference]: Without dead ends: 420
[2022-02-09 02:17:51,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,092 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 64 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 73 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states.
[2022-02-09 02:17:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 246.
[2022-02-09 02:17:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 3.0979591836734692) internal successors, (759), 245 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 759 transitions.
[2022-02-09 02:17:51,096 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 759 transitions. Word has length 21
[2022-02-09 02:17:51,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,096 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 759 transitions.
[2022-02-09 02:17:51,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 759 transitions.
[2022-02-09 02:17:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,097 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,097 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]
[2022-02-09 02:17:51,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105
[2022-02-09 02:17:51,097 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1316763149, now seen corresponding path program 103 times
[2022-02-09 02:17:51,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399650344]
[2022-02-09 02:17:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,199 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 02:17:51,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399650344]
[2022-02-09 02:17:51,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399650344] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691388280]
[2022-02-09 02:17:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,201 INFO L87 Difference]: Start difference. First operand 246 states and 759 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,273 INFO L93 Difference]: Finished difference Result 501 states and 1441 transitions.
[2022-02-09 02:17:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,274 INFO L225 Difference]: With dead ends: 501
[2022-02-09 02:17:51,274 INFO L226 Difference]: Without dead ends: 414
[2022-02-09 02:17:51,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,275 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 78 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 66 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states.
[2022-02-09 02:17:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 246.
[2022-02-09 02:17:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 3.0653061224489795) internal successors, (751), 245 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 751 transitions.
[2022-02-09 02:17:51,280 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 751 transitions. Word has length 21
[2022-02-09 02:17:51,280 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,280 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 751 transitions.
[2022-02-09 02:17:51,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 751 transitions.
[2022-02-09 02:17:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,281 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,281 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]
[2022-02-09 02:17:51,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106
[2022-02-09 02:17:51,281 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1019481709, now seen corresponding path program 104 times
[2022-02-09 02:17:51,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467205719]
[2022-02-09 02:17:51,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467205719]
[2022-02-09 02:17:51,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467205719] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782143722]
[2022-02-09 02:17:51,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,387 INFO L87 Difference]: Start difference. First operand 246 states and 751 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,453 INFO L93 Difference]: Finished difference Result 493 states and 1405 transitions.
[2022-02-09 02:17:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,455 INFO L225 Difference]: With dead ends: 493
[2022-02-09 02:17:51,455 INFO L226 Difference]: Without dead ends: 406
[2022-02-09 02:17:51,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,455 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 75 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 74 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states.
[2022-02-09 02:17:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 238.
[2022-02-09 02:17:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 3.067510548523207) internal successors, (727), 237 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 727 transitions.
[2022-02-09 02:17:51,460 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 727 transitions. Word has length 21
[2022-02-09 02:17:51,460 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,460 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 727 transitions.
[2022-02-09 02:17:51,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 727 transitions.
[2022-02-09 02:17:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,461 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:51,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107
[2022-02-09 02:17:51,461 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,462 INFO L85 PathProgramCache]: Analyzing trace with hash 391113131, now seen corresponding path program 105 times
[2022-02-09 02:17:51,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168716331]
[2022-02-09 02:17:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168716331]
[2022-02-09 02:17:51,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168716331] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226171880]
[2022-02-09 02:17:51,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,566 INFO L87 Difference]: Start difference. First operand 238 states and 727 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,639 INFO L93 Difference]: Finished difference Result 493 states and 1417 transitions.
[2022-02-09 02:17:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,640 INFO L225 Difference]: With dead ends: 493
[2022-02-09 02:17:51,640 INFO L226 Difference]: Without dead ends: 406
[2022-02-09 02:17:51,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,640 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 80 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 66 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states.
[2022-02-09 02:17:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 250.
[2022-02-09 02:17:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 3.0481927710843375) internal successors, (759), 249 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 759 transitions.
[2022-02-09 02:17:51,645 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 759 transitions. Word has length 21
[2022-02-09 02:17:51,645 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,645 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 759 transitions.
[2022-02-09 02:17:51,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 759 transitions.
[2022-02-09 02:17:51,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,645 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,645 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]
[2022-02-09 02:17:51,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108
[2022-02-09 02:17:51,645 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2095510285, now seen corresponding path program 106 times
[2022-02-09 02:17:51,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199610137]
[2022-02-09 02:17:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199610137]
[2022-02-09 02:17:51,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199610137] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976828454]
[2022-02-09 02:17:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,748 INFO L87 Difference]: Start difference. First operand 250 states and 759 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,808 INFO L93 Difference]: Finished difference Result 433 states and 1256 transitions.
[2022-02-09 02:17:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,809 INFO L225 Difference]: With dead ends: 433
[2022-02-09 02:17:51,809 INFO L226 Difference]: Without dead ends: 330
[2022-02-09 02:17:51,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,809 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 61 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 71 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states.
[2022-02-09 02:17:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 238.
[2022-02-09 02:17:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 3.050632911392405) internal successors, (723), 237 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 723 transitions.
[2022-02-09 02:17:51,814 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 723 transitions. Word has length 21
[2022-02-09 02:17:51,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,814 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 723 transitions.
[2022-02-09 02:17:51,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,814 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 723 transitions.
[2022-02-09 02:17:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,815 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,815 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]
[2022-02-09 02:17:51,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109
[2022-02-09 02:17:51,815 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash -254934223, now seen corresponding path program 107 times
[2022-02-09 02:17:51,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302844577]
[2022-02-09 02:17:51,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:51,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:51,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302844577]
[2022-02-09 02:17:51,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302844577] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:51,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:51,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:51,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785427737]
[2022-02-09 02:17:51,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:51,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:51,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:51,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:51,918 INFO L87 Difference]: Start difference. First operand 238 states and 723 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:51,990 INFO L93 Difference]: Finished difference Result 481 states and 1369 transitions.
[2022-02-09 02:17:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:51,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:51,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:51,992 INFO L225 Difference]: With dead ends: 481
[2022-02-09 02:17:51,992 INFO L226 Difference]: Without dead ends: 402
[2022-02-09 02:17:51,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:51,992 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 67 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:51,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 74 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 02:17:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states.
[2022-02-09 02:17:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 246.
[2022-02-09 02:17:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 3.0326530612244897) internal successors, (743), 245 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 743 transitions.
[2022-02-09 02:17:51,997 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 743 transitions. Word has length 21
[2022-02-09 02:17:51,997 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:51,997 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 743 transitions.
[2022-02-09 02:17:51,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 743 transitions.
[2022-02-09 02:17:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:51,998 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:51,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:51,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110
[2022-02-09 02:17:51,998 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1802856557, now seen corresponding path program 108 times
[2022-02-09 02:17:51,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:51,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81617004]
[2022-02-09 02:17:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:51,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,107 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 02:17:52,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81617004]
[2022-02-09 02:17:52,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81617004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308015974]
[2022-02-09 02:17:52,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,109 INFO L87 Difference]: Start difference. First operand 246 states and 743 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,180 INFO L93 Difference]: Finished difference Result 429 states and 1240 transitions.
[2022-02-09 02:17:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:52,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,181 INFO L225 Difference]: With dead ends: 429
[2022-02-09 02:17:52,181 INFO L226 Difference]: Without dead ends: 326
[2022-02-09 02:17:52,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,182 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 69 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 65 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2022-02-09 02:17:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 234.
[2022-02-09 02:17:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 3.060085836909871) internal successors, (713), 233 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 713 transitions.
[2022-02-09 02:17:52,186 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 713 transitions. Word has length 21
[2022-02-09 02:17:52,186 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,186 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 713 transitions.
[2022-02-09 02:17:52,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 713 transitions.
[2022-02-09 02:17:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:52,187 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,187 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]
[2022-02-09 02:17:52,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111
[2022-02-09 02:17:52,187 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:52,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash 231764395, now seen corresponding path program 109 times
[2022-02-09 02:17:52,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107229303]
[2022-02-09 02:17:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107229303]
[2022-02-09 02:17:52,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107229303] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211683828]
[2022-02-09 02:17:52,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,288 INFO L87 Difference]: Start difference. First operand 234 states and 713 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,356 INFO L93 Difference]: Finished difference Result 479 states and 1364 transitions.
[2022-02-09 02:17:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:52,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,357 INFO L225 Difference]: With dead ends: 479
[2022-02-09 02:17:52,357 INFO L226 Difference]: Without dead ends: 392
[2022-02-09 02:17:52,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,357 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 75 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2022-02-09 02:17:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 234.
[2022-02-09 02:17:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 3.0085836909871246) internal successors, (701), 233 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 701 transitions.
[2022-02-09 02:17:52,361 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 701 transitions. Word has length 21
[2022-02-09 02:17:52,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,361 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 701 transitions.
[2022-02-09 02:17:52,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 701 transitions.
[2022-02-09 02:17:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:52,362 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112
[2022-02-09 02:17:52,362 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1701182579, now seen corresponding path program 110 times
[2022-02-09 02:17:52,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654969137]
[2022-02-09 02:17:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654969137]
[2022-02-09 02:17:52,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654969137] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34497396]
[2022-02-09 02:17:52,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,457 INFO L87 Difference]: Start difference. First operand 234 states and 701 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,521 INFO L93 Difference]: Finished difference Result 485 states and 1369 transitions.
[2022-02-09 02:17:52,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:52,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,522 INFO L225 Difference]: With dead ends: 485
[2022-02-09 02:17:52,522 INFO L226 Difference]: Without dead ends: 380
[2022-02-09 02:17:52,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,522 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 66 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states.
[2022-02-09 02:17:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 222.
[2022-02-09 02:17:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 3.0) internal successors, (663), 221 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 663 transitions.
[2022-02-09 02:17:52,526 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 663 transitions. Word has length 21
[2022-02-09 02:17:52,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,526 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 663 transitions.
[2022-02-09 02:17:52,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 663 transitions.
[2022-02-09 02:17:52,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:52,527 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113
[2022-02-09 02:17:52,527 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:52,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1312827021, now seen corresponding path program 111 times
[2022-02-09 02:17:52,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656425223]
[2022-02-09 02:17:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656425223]
[2022-02-09 02:17:52,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656425223] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428711678]
[2022-02-09 02:17:52,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,631 INFO L87 Difference]: Start difference. First operand 222 states and 663 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,704 INFO L93 Difference]: Finished difference Result 441 states and 1233 transitions.
[2022-02-09 02:17:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:52,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,705 INFO L225 Difference]: With dead ends: 441
[2022-02-09 02:17:52,705 INFO L226 Difference]: Without dead ends: 354
[2022-02-09 02:17:52,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,706 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 71 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 63 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2022-02-09 02:17:52,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 198.
[2022-02-09 02:17:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.918781725888325) internal successors, (575), 197 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 575 transitions.
[2022-02-09 02:17:52,710 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 575 transitions. Word has length 21
[2022-02-09 02:17:52,710 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,710 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 575 transitions.
[2022-02-09 02:17:52,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 575 transitions.
[2022-02-09 02:17:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:52,711 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,711 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]
[2022-02-09 02:17:52,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114
[2022-02-09 02:17:52,711 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:52,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1299483405, now seen corresponding path program 112 times
[2022-02-09 02:17:52,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405104556]
[2022-02-09 02:17:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405104556]
[2022-02-09 02:17:52,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405104556] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509572997]
[2022-02-09 02:17:52,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,819 INFO L87 Difference]: Start difference. First operand 198 states and 575 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:52,874 INFO L93 Difference]: Finished difference Result 381 states and 1072 transitions.
[2022-02-09 02:17:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:52,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:52,874 INFO L225 Difference]: With dead ends: 381
[2022-02-09 02:17:52,874 INFO L226 Difference]: Without dead ends: 278
[2022-02-09 02:17:52,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:52,875 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:52,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 63 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2022-02-09 02:17:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 186.
[2022-02-09 02:17:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.902702702702703) internal successors, (537), 185 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 537 transitions.
[2022-02-09 02:17:52,877 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 537 transitions. Word has length 21
[2022-02-09 02:17:52,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:52,877 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 537 transitions.
[2022-02-09 02:17:52,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 537 transitions.
[2022-02-09 02:17:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:52,878 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:52,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:52,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115
[2022-02-09 02:17:52,878 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:52,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash -158057361, now seen corresponding path program 113 times
[2022-02-09 02:17:52,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:52,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537226462]
[2022-02-09 02:17:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:52,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:52,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:52,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537226462]
[2022-02-09 02:17:52,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537226462] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:52,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:52,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:52,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349283413]
[2022-02-09 02:17:52,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:52,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:52,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:52,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:52,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:52,971 INFO L87 Difference]: Start difference. First operand 186 states and 537 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,031 INFO L93 Difference]: Finished difference Result 385 states and 1090 transitions.
[2022-02-09 02:17:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,032 INFO L225 Difference]: With dead ends: 385
[2022-02-09 02:17:53,032 INFO L226 Difference]: Without dead ends: 292
[2022-02-09 02:17:53,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,032 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 66 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 62 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states.
[2022-02-09 02:17:53,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 200.
[2022-02-09 02:17:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.8844221105527637) internal successors, (574), 199 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 574 transitions.
[2022-02-09 02:17:53,036 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 574 transitions. Word has length 21
[2022-02-09 02:17:53,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,036 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 574 transitions.
[2022-02-09 02:17:53,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 574 transitions.
[2022-02-09 02:17:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,037 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,037 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]
[2022-02-09 02:17:53,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116
[2022-02-09 02:17:53,037 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,038 INFO L85 PathProgramCache]: Analyzing trace with hash -486440243, now seen corresponding path program 114 times
[2022-02-09 02:17:53,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338050487]
[2022-02-09 02:17:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338050487]
[2022-02-09 02:17:53,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338050487] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091529289]
[2022-02-09 02:17:53,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,141 INFO L87 Difference]: Start difference. First operand 200 states and 574 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,195 INFO L93 Difference]: Finished difference Result 291 states and 822 transitions.
[2022-02-09 02:17:53,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,196 INFO L225 Difference]: With dead ends: 291
[2022-02-09 02:17:53,196 INFO L226 Difference]: Without dead ends: 180
[2022-02-09 02:17:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,196 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 64 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states.
[2022-02-09 02:17:53,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180.
[2022-02-09 02:17:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.916201117318436) internal successors, (522), 179 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 522 transitions.
[2022-02-09 02:17:53,198 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 522 transitions. Word has length 21
[2022-02-09 02:17:53,198 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,198 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 522 transitions.
[2022-02-09 02:17:53,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 522 transitions.
[2022-02-09 02:17:53,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,199 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,199 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]
[2022-02-09 02:17:53,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117
[2022-02-09 02:17:53,199 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash 367880497, now seen corresponding path program 115 times
[2022-02-09 02:17:53,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952322256]
[2022-02-09 02:17:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952322256]
[2022-02-09 02:17:53,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952322256] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018197155]
[2022-02-09 02:17:53,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,308 INFO L87 Difference]: Start difference. First operand 180 states and 522 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,359 INFO L93 Difference]: Finished difference Result 323 states and 891 transitions.
[2022-02-09 02:17:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,361 INFO L225 Difference]: With dead ends: 323
[2022-02-09 02:17:53,361 INFO L226 Difference]: Without dead ends: 244
[2022-02-09 02:17:53,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,361 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 58 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 53 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states.
[2022-02-09 02:17:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 180.
[2022-02-09 02:17:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.8715083798882683) internal successors, (514), 179 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 514 transitions.
[2022-02-09 02:17:53,365 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 514 transitions. Word has length 21
[2022-02-09 02:17:53,365 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,365 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 514 transitions.
[2022-02-09 02:17:53,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 514 transitions.
[2022-02-09 02:17:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,366 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,366 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]
[2022-02-09 02:17:53,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118
[2022-02-09 02:17:53,366 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1201048045, now seen corresponding path program 116 times
[2022-02-09 02:17:53,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912366781]
[2022-02-09 02:17:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:53,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912366781]
[2022-02-09 02:17:53,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912366781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573493412]
[2022-02-09 02:17:53,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,469 INFO L87 Difference]: Start difference. First operand 180 states and 514 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,531 INFO L93 Difference]: Finished difference Result 337 states and 928 transitions.
[2022-02-09 02:17:53,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,532 INFO L225 Difference]: With dead ends: 337
[2022-02-09 02:17:53,532 INFO L226 Difference]: Without dead ends: 236
[2022-02-09 02:17:53,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,532 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 69 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 57 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2022-02-09 02:17:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 172.
[2022-02-09 02:17:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.865497076023392) internal successors, (490), 171 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 490 transitions.
[2022-02-09 02:17:53,535 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 490 transitions. Word has length 21
[2022-02-09 02:17:53,535 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,535 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 490 transitions.
[2022-02-09 02:17:53,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 490 transitions.
[2022-02-09 02:17:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,536 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119
[2022-02-09 02:17:53,536 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1448943123, now seen corresponding path program 117 times
[2022-02-09 02:17:53,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177990727]
[2022-02-09 02:17:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,643 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 02:17:53,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177990727]
[2022-02-09 02:17:53,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177990727] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176343682]
[2022-02-09 02:17:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,645 INFO L87 Difference]: Start difference. First operand 172 states and 490 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,698 INFO L93 Difference]: Finished difference Result 299 states and 811 transitions.
[2022-02-09 02:17:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,699 INFO L225 Difference]: With dead ends: 299
[2022-02-09 02:17:53,699 INFO L226 Difference]: Without dead ends: 220
[2022-02-09 02:17:53,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,699 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 62 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 50 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states.
[2022-02-09 02:17:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 156.
[2022-02-09 02:17:53,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.8) internal successors, (434), 155 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 434 transitions.
[2022-02-09 02:17:53,702 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 434 transitions. Word has length 21
[2022-02-09 02:17:53,702 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,702 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 434 transitions.
[2022-02-09 02:17:53,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 434 transitions.
[2022-02-09 02:17:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,703 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120
[2022-02-09 02:17:53,703 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1816719981, now seen corresponding path program 118 times
[2022-02-09 02:17:53,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128572943]
[2022-02-09 02:17:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,799 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 02:17:53,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128572943]
[2022-02-09 02:17:53,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128572943] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864169342]
[2022-02-09 02:17:53,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,800 INFO L87 Difference]: Start difference. First operand 156 states and 434 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call 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 L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:53,862 INFO L93 Difference]: Finished difference Result 247 states and 682 transitions.
[2022-02-09 02:17:53,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:53,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:53,863 INFO L225 Difference]: With dead ends: 247
[2022-02-09 02:17:53,863 INFO L226 Difference]: Without dead ends: 148
[2022-02-09 02:17:53,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:53,863 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 65 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:53,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 50 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states.
[2022-02-09 02:17:53,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148.
[2022-02-09 02:17:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 2.7891156462585034) internal successors, (410), 147 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 410 transitions.
[2022-02-09 02:17:53,866 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 410 transitions. Word has length 21
[2022-02-09 02:17:53,866 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:53,866 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 410 transitions.
[2022-02-09 02:17:53,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 410 transitions.
[2022-02-09 02:17:53,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:53,867 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:53,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 02:17:53,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121
[2022-02-09 02:17:53,867 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:53,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1599240693, now seen corresponding path program 119 times
[2022-02-09 02:17:53,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:53,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111795969]
[2022-02-09 02:17:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:53,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:53,975 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 02:17:53,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:53,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111795969]
[2022-02-09 02:17:53,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111795969] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:53,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:53,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:53,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981970052]
[2022-02-09 02:17:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:53,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:53,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:53,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:53,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:53,976 INFO L87 Difference]: Start difference. First operand 148 states and 410 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:54,041 INFO L93 Difference]: Finished difference Result 211 states and 570 transitions.
[2022-02-09 02:17:54,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:54,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:54,042 INFO L225 Difference]: With dead ends: 211
[2022-02-09 02:17:54,042 INFO L226 Difference]: Without dead ends: 118
[2022-02-09 02:17:54,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,042 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 35 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:54,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 43 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2022-02-09 02:17:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118.
[2022-02-09 02:17:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 2.58974358974359) internal successors, (303), 117 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 303 transitions.
[2022-02-09 02:17:54,044 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 303 transitions. Word has length 21
[2022-02-09 02:17:54,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:54,044 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 303 transitions.
[2022-02-09 02:17:54,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 303 transitions.
[2022-02-09 02:17:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-02-09 02:17:54,045 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 02:17:54,045 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]
[2022-02-09 02:17:54,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122
[2022-02-09 02:17:54,045 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] ===
[2022-02-09 02:17:54,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 02:17:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash -444096301, now seen corresponding path program 120 times
[2022-02-09 02:17:54,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 02:17:54,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155938316]
[2022-02-09 02:17:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 02:17:54,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 02:17:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 02:17:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 02:17:54,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 02:17:54,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155938316]
[2022-02-09 02:17:54,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155938316] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 02:17:54,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 02:17:54,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-09 02:17:54,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753544654]
[2022-02-09 02:17:54,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 02:17:54,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 02:17:54,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 02:17:54,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 02:17:54,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-09 02:17:54,139 INFO L87 Difference]: Start difference. First operand 118 states and 303 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 02:17:54,183 INFO L93 Difference]: Finished difference Result 117 states and 302 transitions.
[2022-02-09 02:17:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-02-09 02:17:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2022-02-09 02:17:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 02:17:54,183 INFO L225 Difference]: With dead ends: 117
[2022-02-09 02:17:54,183 INFO L226 Difference]: Without dead ends: 0
[2022-02-09 02:17:54,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2022-02-09 02:17:54,184 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 02:17:54,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 37 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 02:17:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-09 02:17:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-09 02:17:54,184 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 02:17:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-09 02:17:54,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2022-02-09 02:17:54,184 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 02:17:54,184 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-09 02:17:54,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-09 02:17:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-09 02:17:54,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-09 02:17:54,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (5 of 6 remaining)
[2022-02-09 02:17:54,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining)
[2022-02-09 02:17:54,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining)
[2022-02-09 02:17:54,193 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining)
[2022-02-09 02:17:54,193 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining)
[2022-02-09 02:17:54,193 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining)
[2022-02-09 02:17:54,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123
[2022-02-09 02:17:54,196 INFO L732 BasicCegarLoop]: Path program histogram: [120, 1, 1, 1, 1]
[2022-02-09 02:17:54,198 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 02:17:54,198 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 02:17:54,200 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:17:54 BasicIcfg
[2022-02-09 02:17:54,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: Toolchain (without parser) took 28160.31ms. Allocated memory was 199.2MB in the beginning and 463.5MB in the end (delta: 264.2MB). Free memory was 163.5MB in the beginning and 228.2MB in the end (delta: -64.7MB). Peak memory consumption was 199.4MB. Max. memory is 8.0GB.
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.47ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 161.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: Boogie Preprocessor took 15.07ms. Allocated memory is still 199.2MB. Free memory was 161.8MB in the beginning and 161.0MB in the end (delta: 840.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: RCFGBuilder took 209.39ms. Allocated memory is still 199.2MB. Free memory was 160.9MB in the beginning and 152.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
[2022-02-09 02:17:54,201 INFO L158 Benchmark]: TraceAbstraction took 27897.31ms. Allocated memory was 199.2MB in the beginning and 463.5MB in the end (delta: 264.2MB). Free memory was 152.0MB in the beginning and 228.2MB in the end (delta: -76.2MB). Peak memory consumption was 187.9MB. Max. memory is 8.0GB.
[2022-02-09 02:17:54,202 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 0.09ms. Allocated memory is still 199.2MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 29.47ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 161.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 15.07ms. Allocated memory is still 199.2MB. Free memory was 161.8MB in the beginning and 161.0MB in the end (delta: 840.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 209.39ms. Allocated memory is still 199.2MB. Free memory was 160.9MB in the beginning and 152.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 27897.31ms. Allocated memory was 199.2MB in the beginning and 463.5MB in the end (delta: 264.2MB). Free memory was 152.0MB in the beginning and 228.2MB in the end (delta: -76.2MB). Peak memory consumption was 187.9MB. 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: 23]: 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 11 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 27.8s, OverallIterations: 124, TraceHistogramMax: 1, PathProgramHistogramMax: 120, EmptinessCheckTime: 0.2s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8969 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8969 mSDsluCounter, 10918 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13706 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12807 IncrementalHoareTripleChecker+Invalid, 12813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 4247 mSDtfsCounter, 12807 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 852 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 724 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=0, InterpolantAutomatonStates: 852, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 124 MinimizatonAttempts, 38456 StatesRemovedByMinimization, 116 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 2604 NumberOfCodeBlocks, 2604 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 2480 ConstructedInterpolants, 0 QuantifiedInterpolants, 47745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 124 InterpolantComputations, 124 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 02:17:54,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...