/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_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:39:53,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:39:53,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:39:53,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:39:53,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:39:53,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:39:53,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:39:53,525 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 [2022-03-03 18:39:53,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:39:53,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:39:53,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:39:53,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:39:53,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:39:53,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:39:53,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:39:53,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:39:53,555 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:39:53,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:39:53,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:39:53,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:39:53,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:39:53,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:39:53,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:39:53,559 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:39:53,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:39:53,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:39:53,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:39:53,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:39:53,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:39:53,769 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:39:53,770 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:39:53,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2022-03-03 18:39:53,772 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2022-03-03 18:39:53,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:39:53,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:39:53,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:39:53,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:39:53,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:39:53,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,819 INFO L137 Inliner]: procedures = 9, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:39:53,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:39:53,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:39:53,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:39:53,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:39:53,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:39:53,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:39:53,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:39:53,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:39:53,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/1) ... [2022-03-03 18:39:53,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:39:53,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:39:53,858 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) [2022-03-03 18:39:53,869 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 [2022-03-03 18:39:53,891 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-03 18:39:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-03 18:39:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-03 18:39:53,892 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-03 18:39:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-03 18:39:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-03 18:39:53,892 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-03 18:39:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-03 18:39:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-03 18:39:53,892 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-03 18:39:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-03 18:39:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-03 18:39:53,893 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-03 18:39:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-03 18:39:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-03 18:39:53,893 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:39:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:39:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:39:53,893 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-03 18:39:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-03 18:39:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-03 18:39:53,893 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-03 18:39:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-03 18:39:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-03 18:39:53,894 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-03 18:39:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-03 18:39:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-03 18:39:53,895 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:39:53,929 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:39:53,931 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:39:54,004 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:39:54,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:39:54,010 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:39:54,012 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:39:54 BoogieIcfgContainer [2022-03-03 18:39:54,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:39:54,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:39:54,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:39:54,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:39:54,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:39:53" (1/2) ... [2022-03-03 18:39:54,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ebba42 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:39:54, skipping insertion in model container [2022-03-03 18:39:54,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:39:54" (2/2) ... [2022-03-03 18:39:54,047 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2022-03-03 18:39:54,051 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:39:54,051 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:39:54,051 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:39:54,051 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:39:54,142 INFO L148 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2022-03-03 18:39:54,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:39:54,206 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:39:54,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-03-03 18:39:54,222 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions, 430 flow [2022-03-03 18:39:58,554 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:58,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:39:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:39:59,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:39:59,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:39:59,464 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:39:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:39:59,469 INFO L85 PathProgramCache]: Analyzing trace with hash -184179927, now seen corresponding path program 1 times [2022-03-03 18:39:59,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:39:59,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667417233] [2022-03-03 18:39:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:39:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:39:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:39:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:39:59,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:39:59,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667417233] [2022-03-03 18:39:59,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667417233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:39:59,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:39:59,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:39:59,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647403976] [2022-03-03 18:39:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:39:59,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:39:59,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:39:59,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:39:59,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:39:59,773 INFO L87 Difference]: Start difference. First operand has 68817 states, 68816 states have (on average 5.968277726110207) internal successors, (410713), 68816 states have internal predecessors, (410713), 0 states have call successors, (0), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:01,075 INFO L93 Difference]: Finished difference Result 52434 states and 308314 transitions. [2022-03-03 18:40:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:40:01,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:01,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:01,664 INFO L225 Difference]: With dead ends: 52434 [2022-03-03 18:40:01,664 INFO L226 Difference]: Without dead ends: 52434 [2022-03-03 18:40:01,665 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 [2022-03-03 18:40:01,669 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:01,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 45 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52434 states. [2022-03-03 18:40:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52434 to 52434. [2022-03-03 18:40:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52434 states, 52433 states have (on average 5.880151812789656) internal successors, (308314), 52433 states have internal predecessors, (308314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52434 states to 52434 states and 308314 transitions. [2022-03-03 18:40:06,828 INFO L78 Accepts]: Start accepts. Automaton has 52434 states and 308314 transitions. Word has length 33 [2022-03-03 18:40:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:06,829 INFO L470 AbstractCegarLoop]: Abstraction has 52434 states and 308314 transitions. [2022-03-03 18:40:06,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 52434 states and 308314 transitions. [2022-03-03 18:40:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:07,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:07,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:07,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:40:07,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1582502635, now seen corresponding path program 1 times [2022-03-03 18:40:07,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:07,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375511178] [2022-03-03 18:40:07,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:07,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:07,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:07,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375511178] [2022-03-03 18:40:07,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375511178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:07,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:07,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:40:07,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595195138] [2022-03-03 18:40:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:07,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:40:07,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:07,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:40:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:40:07,180 INFO L87 Difference]: Start difference. First operand 52434 states and 308314 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:07,831 INFO L93 Difference]: Finished difference Result 40203 states and 232687 transitions. [2022-03-03 18:40:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:40:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:08,479 INFO L225 Difference]: With dead ends: 40203 [2022-03-03 18:40:08,479 INFO L226 Difference]: Without dead ends: 40203 [2022-03-03 18:40:08,481 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 [2022-03-03 18:40:08,486 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 50 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:08,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 37 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:40:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40203 states. [2022-03-03 18:40:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40203 to 40203. [2022-03-03 18:40:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40203 states, 40202 states have (on average 5.787945873339635) internal successors, (232687), 40202 states have internal predecessors, (232687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:10,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40203 states to 40203 states and 232687 transitions. [2022-03-03 18:40:10,999 INFO L78 Accepts]: Start accepts. Automaton has 40203 states and 232687 transitions. Word has length 33 [2022-03-03 18:40:10,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:10,999 INFO L470 AbstractCegarLoop]: Abstraction has 40203 states and 232687 transitions. [2022-03-03 18:40:11,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:11,000 INFO L276 IsEmpty]: Start isEmpty. Operand 40203 states and 232687 transitions. [2022-03-03 18:40:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:11,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:11,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:11,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:40:11,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 876381047, now seen corresponding path program 1 times [2022-03-03 18:40:11,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:11,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068323171] [2022-03-03 18:40:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:11,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:11,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:11,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068323171] [2022-03-03 18:40:11,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068323171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:11,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:11,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:40:11,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056883599] [2022-03-03 18:40:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:11,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:40:11,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:40:11,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:40:11,182 INFO L87 Difference]: Start difference. First operand 40203 states and 232687 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:11,797 INFO L93 Difference]: Finished difference Result 30942 states and 176500 transitions. [2022-03-03 18:40:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:40:11,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:12,014 INFO L225 Difference]: With dead ends: 30942 [2022-03-03 18:40:12,014 INFO L226 Difference]: Without dead ends: 30942 [2022-03-03 18:40:12,014 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 [2022-03-03 18:40:12,016 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:12,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:40:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30942 states. [2022-03-03 18:40:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30942 to 30942. [2022-03-03 18:40:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30942 states, 30941 states have (on average 5.704405158204325) internal successors, (176500), 30941 states have internal predecessors, (176500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30942 states to 30942 states and 176500 transitions. [2022-03-03 18:40:13,407 INFO L78 Accepts]: Start accepts. Automaton has 30942 states and 176500 transitions. Word has length 33 [2022-03-03 18:40:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:13,407 INFO L470 AbstractCegarLoop]: Abstraction has 30942 states and 176500 transitions. [2022-03-03 18:40:13,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 30942 states and 176500 transitions. [2022-03-03 18:40:13,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:13,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:13,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:13,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:40:13,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:13,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1972791627, now seen corresponding path program 1 times [2022-03-03 18:40:13,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:13,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639105799] [2022-03-03 18:40:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:13,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:14,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:14,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639105799] [2022-03-03 18:40:14,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639105799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:14,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:14,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:14,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008888619] [2022-03-03 18:40:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:14,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:14,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:14,267 INFO L87 Difference]: Start difference. First operand 30942 states and 176500 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:15,913 INFO L93 Difference]: Finished difference Result 80063 states and 437278 transitions. [2022-03-03 18:40:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:16,859 INFO L225 Difference]: With dead ends: 80063 [2022-03-03 18:40:16,860 INFO L226 Difference]: Without dead ends: 77464 [2022-03-03 18:40:16,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:16,861 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 396 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:16,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 319 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 18:40:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77464 states. [2022-03-03 18:40:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77464 to 31417. [2022-03-03 18:40:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31417 states, 31416 states have (on average 5.698147440794499) internal successors, (179013), 31416 states have internal predecessors, (179013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31417 states to 31417 states and 179013 transitions. [2022-03-03 18:40:19,399 INFO L78 Accepts]: Start accepts. Automaton has 31417 states and 179013 transitions. Word has length 33 [2022-03-03 18:40:19,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:19,400 INFO L470 AbstractCegarLoop]: Abstraction has 31417 states and 179013 transitions. [2022-03-03 18:40:19,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31417 states and 179013 transitions. [2022-03-03 18:40:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:19,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:19,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:19,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:40:19,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1849214475, now seen corresponding path program 2 times [2022-03-03 18:40:19,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:19,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403167722] [2022-03-03 18:40:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:19,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:19,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403167722] [2022-03-03 18:40:19,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403167722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:19,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:20,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:20,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028200038] [2022-03-03 18:40:20,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:20,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:20,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:20,002 INFO L87 Difference]: Start difference. First operand 31417 states and 179013 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:21,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:21,674 INFO L93 Difference]: Finished difference Result 80063 states and 437062 transitions. [2022-03-03 18:40:21,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:22,498 INFO L225 Difference]: With dead ends: 80063 [2022-03-03 18:40:22,498 INFO L226 Difference]: Without dead ends: 77248 [2022-03-03 18:40:22,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:22,499 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 413 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:22,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 281 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 18:40:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77248 states. [2022-03-03 18:40:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77248 to 31201. [2022-03-03 18:40:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31201 states, 31200 states have (on average 5.702980769230769) internal successors, (177933), 31200 states have internal predecessors, (177933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31201 states to 31201 states and 177933 transitions. [2022-03-03 18:40:24,554 INFO L78 Accepts]: Start accepts. Automaton has 31201 states and 177933 transitions. Word has length 33 [2022-03-03 18:40:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:24,554 INFO L470 AbstractCegarLoop]: Abstraction has 31201 states and 177933 transitions. [2022-03-03 18:40:24,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 31201 states and 177933 transitions. [2022-03-03 18:40:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:25,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:25,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:25,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:40:25,020 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1593320203, now seen corresponding path program 3 times [2022-03-03 18:40:25,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:25,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944682277] [2022-03-03 18:40:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:25,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:25,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:25,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944682277] [2022-03-03 18:40:25,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944682277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:25,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:25,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:25,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477552160] [2022-03-03 18:40:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:25,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:25,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:25,495 INFO L87 Difference]: Start difference. First operand 31201 states and 177933 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:26,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:26,993 INFO L93 Difference]: Finished difference Result 80690 states and 440557 transitions. [2022-03-03 18:40:26,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:26,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:27,782 INFO L225 Difference]: With dead ends: 80690 [2022-03-03 18:40:27,783 INFO L226 Difference]: Without dead ends: 78091 [2022-03-03 18:40:27,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:27,784 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 380 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:27,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 279 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:40:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78091 states. [2022-03-03 18:40:29,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78091 to 31589. [2022-03-03 18:40:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 5.69092693427884) internal successors, (179765), 31588 states have internal predecessors, (179765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 179765 transitions. [2022-03-03 18:40:29,848 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 179765 transitions. Word has length 33 [2022-03-03 18:40:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:29,848 INFO L470 AbstractCegarLoop]: Abstraction has 31589 states and 179765 transitions. [2022-03-03 18:40:29,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 179765 transitions. [2022-03-03 18:40:29,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:29,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:29,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:29,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:40:29,944 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1583767349, now seen corresponding path program 4 times [2022-03-03 18:40:29,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:29,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735410887] [2022-03-03 18:40:29,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:29,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:30,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:30,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735410887] [2022-03-03 18:40:30,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735410887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:30,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:30,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:30,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707419057] [2022-03-03 18:40:30,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:30,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:30,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:30,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:30,293 INFO L87 Difference]: Start difference. First operand 31589 states and 179765 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:31,979 INFO L93 Difference]: Finished difference Result 81145 states and 442652 transitions. [2022-03-03 18:40:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:32,461 INFO L225 Difference]: With dead ends: 81145 [2022-03-03 18:40:32,461 INFO L226 Difference]: Without dead ends: 77703 [2022-03-03 18:40:32,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:32,462 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 374 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:32,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 292 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 18:40:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77703 states. [2022-03-03 18:40:34,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77703 to 31201. [2022-03-03 18:40:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31201 states, 31200 states have (on average 5.69849358974359) internal successors, (177793), 31200 states have internal predecessors, (177793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31201 states to 31201 states and 177793 transitions. [2022-03-03 18:40:35,001 INFO L78 Accepts]: Start accepts. Automaton has 31201 states and 177793 transitions. Word has length 33 [2022-03-03 18:40:35,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:35,002 INFO L470 AbstractCegarLoop]: Abstraction has 31201 states and 177793 transitions. [2022-03-03 18:40:35,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 31201 states and 177793 transitions. [2022-03-03 18:40:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:35,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:35,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:35,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:40:35,096 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:35,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:35,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1721374675, now seen corresponding path program 5 times [2022-03-03 18:40:35,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:35,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182712879] [2022-03-03 18:40:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:35,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:35,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182712879] [2022-03-03 18:40:35,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182712879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:35,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:35,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:35,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450146059] [2022-03-03 18:40:35,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:35,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:35,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:35,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:35,423 INFO L87 Difference]: Start difference. First operand 31201 states and 177793 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:37,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:37,262 INFO L93 Difference]: Finished difference Result 80690 states and 440417 transitions. [2022-03-03 18:40:37,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:37,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:37,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:38,357 INFO L225 Difference]: With dead ends: 80690 [2022-03-03 18:40:38,359 INFO L226 Difference]: Without dead ends: 78091 [2022-03-03 18:40:38,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:38,361 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 431 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:38,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 275 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:40:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78091 states. [2022-03-03 18:40:40,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78091 to 31589. [2022-03-03 18:40:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 5.686494871470178) internal successors, (179625), 31588 states have internal predecessors, (179625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 179625 transitions. [2022-03-03 18:40:41,019 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 179625 transitions. Word has length 33 [2022-03-03 18:40:41,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:41,024 INFO L470 AbstractCegarLoop]: Abstraction has 31589 states and 179625 transitions. [2022-03-03 18:40:41,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:41,024 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 179625 transitions. [2022-03-03 18:40:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:41,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:41,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:41,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 18:40:41,113 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:41,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 5402677, now seen corresponding path program 6 times [2022-03-03 18:40:41,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:41,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645488223] [2022-03-03 18:40:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:41,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:41,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:41,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645488223] [2022-03-03 18:40:41,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645488223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:41,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:41,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:41,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533659944] [2022-03-03 18:40:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:41,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:41,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:41,414 INFO L87 Difference]: Start difference. First operand 31589 states and 179625 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:43,101 INFO L93 Difference]: Finished difference Result 81145 states and 442512 transitions. [2022-03-03 18:40:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:43,596 INFO L225 Difference]: With dead ends: 81145 [2022-03-03 18:40:43,597 INFO L226 Difference]: Without dead ends: 77563 [2022-03-03 18:40:43,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:43,597 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 407 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:43,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 286 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 18:40:44,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77563 states. [2022-03-03 18:40:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77563 to 31061. [2022-03-03 18:40:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31061 states, 31060 states have (on average 5.703960077269801) internal successors, (177165), 31060 states have internal predecessors, (177165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31061 states to 31061 states and 177165 transitions. [2022-03-03 18:40:46,007 INFO L78 Accepts]: Start accepts. Automaton has 31061 states and 177165 transitions. Word has length 33 [2022-03-03 18:40:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:46,007 INFO L470 AbstractCegarLoop]: Abstraction has 31061 states and 177165 transitions. [2022-03-03 18:40:46,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 31061 states and 177165 transitions. [2022-03-03 18:40:46,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:46,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:46,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:46,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 18:40:46,104 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash 771401491, now seen corresponding path program 7 times [2022-03-03 18:40:46,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:46,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933764724] [2022-03-03 18:40:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:46,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:46,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:46,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933764724] [2022-03-03 18:40:46,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933764724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:46,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:46,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:46,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802517394] [2022-03-03 18:40:46,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:46,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:46,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:46,415 INFO L87 Difference]: Start difference. First operand 31061 states and 177165 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:47,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:47,800 INFO L93 Difference]: Finished difference Result 79196 states and 432467 transitions. [2022-03-03 18:40:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:48,642 INFO L225 Difference]: With dead ends: 79196 [2022-03-03 18:40:48,642 INFO L226 Difference]: Without dead ends: 76597 [2022-03-03 18:40:48,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:48,643 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 383 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:48,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 281 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:40:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76597 states. [2022-03-03 18:40:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76597 to 31349. [2022-03-03 18:40:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31349 states, 31348 states have (on average 5.695961464846242) internal successors, (178557), 31348 states have internal predecessors, (178557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31349 states to 31349 states and 178557 transitions. [2022-03-03 18:40:50,825 INFO L78 Accepts]: Start accepts. Automaton has 31349 states and 178557 transitions. Word has length 33 [2022-03-03 18:40:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:50,825 INFO L470 AbstractCegarLoop]: Abstraction has 31349 states and 178557 transitions. [2022-03-03 18:40:50,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31349 states and 178557 transitions. [2022-03-03 18:40:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:50,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:50,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:50,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 18:40:50,921 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:50,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:50,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1244362685, now seen corresponding path program 8 times [2022-03-03 18:40:50,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:50,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087629456] [2022-03-03 18:40:50,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:50,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:51,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:51,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087629456] [2022-03-03 18:40:51,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087629456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:51,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:51,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:51,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309386077] [2022-03-03 18:40:51,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:51,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:51,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:51,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:51,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:51,223 INFO L87 Difference]: Start difference. First operand 31349 states and 178557 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:52,943 INFO L93 Difference]: Finished difference Result 79196 states and 432251 transitions. [2022-03-03 18:40:52,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:52,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:52,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:53,406 INFO L225 Difference]: With dead ends: 79196 [2022-03-03 18:40:53,406 INFO L226 Difference]: Without dead ends: 76381 [2022-03-03 18:40:53,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:53,407 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 398 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:53,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 311 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 18:40:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76381 states. [2022-03-03 18:40:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76381 to 31133. [2022-03-03 18:40:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31133 states, 31132 states have (on average 5.701946550173455) internal successors, (177513), 31132 states have internal predecessors, (177513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31133 states to 31133 states and 177513 transitions. [2022-03-03 18:40:55,800 INFO L78 Accepts]: Start accepts. Automaton has 31133 states and 177513 transitions. Word has length 33 [2022-03-03 18:40:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:40:55,816 INFO L470 AbstractCegarLoop]: Abstraction has 31133 states and 177513 transitions. [2022-03-03 18:40:55,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 31133 states and 177513 transitions. [2022-03-03 18:40:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:40:55,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:40:55,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:40:55,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 18:40:55,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:40:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:40:55,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1852464117, now seen corresponding path program 9 times [2022-03-03 18:40:55,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:40:55,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113402975] [2022-03-03 18:40:55,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:40:55,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:40:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:40:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:40:56,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:40:56,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113402975] [2022-03-03 18:40:56,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113402975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:40:56,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:40:56,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:40:56,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278910550] [2022-03-03 18:40:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:40:56,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:40:56,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:40:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:40:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:40:56,200 INFO L87 Difference]: Start difference. First operand 31133 states and 177513 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:40:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:40:57,744 INFO L93 Difference]: Finished difference Result 79196 states and 432395 transitions. [2022-03-03 18:40:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:40:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:40:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:40:58,554 INFO L225 Difference]: With dead ends: 79196 [2022-03-03 18:40:58,554 INFO L226 Difference]: Without dead ends: 76597 [2022-03-03 18:40:58,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:40:58,555 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 386 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 18:40:58,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 329 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 18:40:58,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76597 states. [2022-03-03 18:41:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76597 to 31349. [2022-03-03 18:41:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31349 states, 31348 states have (on average 5.693664667602399) internal successors, (178485), 31348 states have internal predecessors, (178485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31349 states to 31349 states and 178485 transitions. [2022-03-03 18:41:00,642 INFO L78 Accepts]: Start accepts. Automaton has 31349 states and 178485 transitions. Word has length 33 [2022-03-03 18:41:00,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:00,642 INFO L470 AbstractCegarLoop]: Abstraction has 31349 states and 178485 transitions. [2022-03-03 18:41:00,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:00,642 INFO L276 IsEmpty]: Start isEmpty. Operand 31349 states and 178485 transitions. [2022-03-03 18:41:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:00,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:00,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:00,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 18:41:00,734 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2118953149, now seen corresponding path program 1 times [2022-03-03 18:41:00,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:00,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682393263] [2022-03-03 18:41:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:00,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:00,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682393263] [2022-03-03 18:41:00,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682393263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:00,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:00,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:41:00,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340315107] [2022-03-03 18:41:00,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:00,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:41:00,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:41:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:41:00,753 INFO L87 Difference]: Start difference. First operand 31349 states and 178485 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:01,265 INFO L93 Difference]: Finished difference Result 24716 states and 138042 transitions. [2022-03-03 18:41:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:41:01,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:01,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:01,379 INFO L225 Difference]: With dead ends: 24716 [2022-03-03 18:41:01,379 INFO L226 Difference]: Without dead ends: 24716 [2022-03-03 18:41:01,380 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 [2022-03-03 18:41:01,380 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:01,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:41:01,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24716 states. [2022-03-03 18:41:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24716 to 24716. [2022-03-03 18:41:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24716 states, 24715 states have (on average 5.585353024479061) internal successors, (138042), 24715 states have internal predecessors, (138042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24716 states to 24716 states and 138042 transitions. [2022-03-03 18:41:02,296 INFO L78 Accepts]: Start accepts. Automaton has 24716 states and 138042 transitions. Word has length 33 [2022-03-03 18:41:02,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:02,296 INFO L470 AbstractCegarLoop]: Abstraction has 24716 states and 138042 transitions. [2022-03-03 18:41:02,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 24716 states and 138042 transitions. [2022-03-03 18:41:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:02,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:02,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:02,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 18:41:02,367 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:02,368 INFO L85 PathProgramCache]: Analyzing trace with hash -177851295, now seen corresponding path program 10 times [2022-03-03 18:41:02,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:02,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953444782] [2022-03-03 18:41:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:02,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:02,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:02,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953444782] [2022-03-03 18:41:02,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953444782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:02,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:02,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:02,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766406453] [2022-03-03 18:41:02,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:02,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:02,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:02,678 INFO L87 Difference]: Start difference. First operand 24716 states and 138042 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:04,332 INFO L93 Difference]: Finished difference Result 61566 states and 328602 transitions. [2022-03-03 18:41:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:04,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:04,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:04,711 INFO L225 Difference]: With dead ends: 61566 [2022-03-03 18:41:04,711 INFO L226 Difference]: Without dead ends: 59607 [2022-03-03 18:41:04,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:04,712 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 373 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:04,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 336 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 18:41:04,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59607 states. [2022-03-03 18:41:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59607 to 24572. [2022-03-03 18:41:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24572 states, 24571 states have (on average 5.589760286516626) internal successors, (137346), 24571 states have internal predecessors, (137346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24572 states to 24572 states and 137346 transitions. [2022-03-03 18:41:06,454 INFO L78 Accepts]: Start accepts. Automaton has 24572 states and 137346 transitions. Word has length 33 [2022-03-03 18:41:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:06,454 INFO L470 AbstractCegarLoop]: Abstraction has 24572 states and 137346 transitions. [2022-03-03 18:41:06,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24572 states and 137346 transitions. [2022-03-03 18:41:06,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:06,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:06,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:06,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 18:41:06,521 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:06,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:06,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1616994211, now seen corresponding path program 11 times [2022-03-03 18:41:06,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:06,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737212114] [2022-03-03 18:41:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:06,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:06,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:06,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737212114] [2022-03-03 18:41:06,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737212114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:06,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:06,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:06,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040369776] [2022-03-03 18:41:06,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:06,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:06,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:06,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:06,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:06,795 INFO L87 Difference]: Start difference. First operand 24572 states and 137346 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:07,994 INFO L93 Difference]: Finished difference Result 62054 states and 331414 transitions. [2022-03-03 18:41:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:07,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:07,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:08,311 INFO L225 Difference]: With dead ends: 62054 [2022-03-03 18:41:08,311 INFO L226 Difference]: Without dead ends: 60031 [2022-03-03 18:41:08,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:08,312 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:08,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 340 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2022-03-03 18:41:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 24788. [2022-03-03 18:41:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24788 states, 24787 states have (on average 5.58026384798483) internal successors, (138318), 24787 states have internal predecessors, (138318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24788 states to 24788 states and 138318 transitions. [2022-03-03 18:41:10,510 INFO L78 Accepts]: Start accepts. Automaton has 24788 states and 138318 transitions. Word has length 33 [2022-03-03 18:41:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:10,510 INFO L470 AbstractCegarLoop]: Abstraction has 24788 states and 138318 transitions. [2022-03-03 18:41:10,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 24788 states and 138318 transitions. [2022-03-03 18:41:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:10,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:10,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:10,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 18:41:10,599 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash -426342783, now seen corresponding path program 12 times [2022-03-03 18:41:10,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:10,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575568545] [2022-03-03 18:41:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:10,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:10,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575568545] [2022-03-03 18:41:10,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575568545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:10,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:10,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:10,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569850341] [2022-03-03 18:41:10,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:10,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:10,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:10,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:10,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:10,940 INFO L87 Difference]: Start difference. First operand 24788 states and 138318 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:12,153 INFO L93 Difference]: Finished difference Result 61846 states and 330038 transitions. [2022-03-03 18:41:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:12,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:12,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:12,786 INFO L225 Difference]: With dead ends: 61846 [2022-03-03 18:41:12,786 INFO L226 Difference]: Without dead ends: 59743 [2022-03-03 18:41:12,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:12,787 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 328 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:12,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 317 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:12,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59743 states. [2022-03-03 18:41:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59743 to 24500. [2022-03-03 18:41:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24500 states, 24499 states have (on average 5.593452793991592) internal successors, (137034), 24499 states have internal predecessors, (137034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24500 states to 24500 states and 137034 transitions. [2022-03-03 18:41:14,162 INFO L78 Accepts]: Start accepts. Automaton has 24500 states and 137034 transitions. Word has length 33 [2022-03-03 18:41:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 24500 states and 137034 transitions. [2022-03-03 18:41:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 24500 states and 137034 transitions. [2022-03-03 18:41:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:14,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:14,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:14,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 18:41:14,610 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1994192489, now seen corresponding path program 13 times [2022-03-03 18:41:14,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:14,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748371925] [2022-03-03 18:41:14,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:14,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:14,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:14,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748371925] [2022-03-03 18:41:14,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748371925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:14,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:14,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:14,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635645741] [2022-03-03 18:41:14,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:14,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:14,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:14,883 INFO L87 Difference]: Start difference. First operand 24500 states and 137034 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:16,151 INFO L93 Difference]: Finished difference Result 61901 states and 330353 transitions. [2022-03-03 18:41:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:16,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:16,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:16,510 INFO L225 Difference]: With dead ends: 61901 [2022-03-03 18:41:16,510 INFO L226 Difference]: Without dead ends: 60086 [2022-03-03 18:41:16,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:16,511 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 365 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:16,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 282 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:41:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60086 states. [2022-03-03 18:41:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60086 to 24748. [2022-03-03 18:41:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24748 states, 24747 states have (on average 5.5866973774598945) internal successors, (138254), 24747 states have internal predecessors, (138254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24748 states to 24748 states and 138254 transitions. [2022-03-03 18:41:18,175 INFO L78 Accepts]: Start accepts. Automaton has 24748 states and 138254 transitions. Word has length 33 [2022-03-03 18:41:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:18,175 INFO L470 AbstractCegarLoop]: Abstraction has 24748 states and 138254 transitions. [2022-03-03 18:41:18,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:18,176 INFO L276 IsEmpty]: Start isEmpty. Operand 24748 states and 138254 transitions. [2022-03-03 18:41:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:18,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:18,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:18,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 18:41:18,247 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash 270459395, now seen corresponding path program 14 times [2022-03-03 18:41:18,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:18,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624120574] [2022-03-03 18:41:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:18,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:18,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:18,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624120574] [2022-03-03 18:41:18,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624120574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:18,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:18,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:18,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703311868] [2022-03-03 18:41:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:18,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:18,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:18,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:18,538 INFO L87 Difference]: Start difference. First operand 24748 states and 138254 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:19,691 INFO L93 Difference]: Finished difference Result 61901 states and 330209 transitions. [2022-03-03 18:41:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:19,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:20,328 INFO L225 Difference]: With dead ends: 61901 [2022-03-03 18:41:20,328 INFO L226 Difference]: Without dead ends: 59942 [2022-03-03 18:41:20,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:20,329 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:20,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 269 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59942 states. [2022-03-03 18:41:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59942 to 24604. [2022-03-03 18:41:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24603 states have (on average 5.591106775596472) internal successors, (137558), 24603 states have internal predecessors, (137558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 137558 transitions. [2022-03-03 18:41:21,744 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 137558 transitions. Word has length 33 [2022-03-03 18:41:21,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:21,744 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 137558 transitions. [2022-03-03 18:41:21,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 137558 transitions. [2022-03-03 18:41:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:22,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:22,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:22,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 18:41:22,137 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1749022069, now seen corresponding path program 15 times [2022-03-03 18:41:22,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:22,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109810141] [2022-03-03 18:41:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:22,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:22,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109810141] [2022-03-03 18:41:22,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109810141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:22,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:22,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:22,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610935164] [2022-03-03 18:41:22,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:22,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:22,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:22,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:22,514 INFO L87 Difference]: Start difference. First operand 24604 states and 137558 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:23,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:23,830 INFO L93 Difference]: Finished difference Result 62416 states and 332920 transitions. [2022-03-03 18:41:23,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:23,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:24,196 INFO L225 Difference]: With dead ends: 62416 [2022-03-03 18:41:24,196 INFO L226 Difference]: Without dead ends: 60601 [2022-03-03 18:41:24,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:24,197 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:24,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 328 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60601 states. [2022-03-03 18:41:25,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60601 to 24888. [2022-03-03 18:41:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24887 states have (on average 5.579700245107888) internal successors, (138862), 24887 states have internal predecessors, (138862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 138862 transitions. [2022-03-03 18:41:25,913 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 138862 transitions. Word has length 33 [2022-03-03 18:41:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:25,913 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 138862 transitions. [2022-03-03 18:41:25,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 138862 transitions. [2022-03-03 18:41:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:25,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:25,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:25,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 18:41:25,981 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1581705047, now seen corresponding path program 16 times [2022-03-03 18:41:25,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:25,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509184440] [2022-03-03 18:41:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:25,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:26,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:26,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509184440] [2022-03-03 18:41:26,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509184440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:26,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:26,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:26,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807305499] [2022-03-03 18:41:26,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:26,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:26,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:26,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:26,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:26,271 INFO L87 Difference]: Start difference. First operand 24888 states and 138862 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:27,384 INFO L93 Difference]: Finished difference Result 62791 states and 334583 transitions. [2022-03-03 18:41:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:27,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:28,017 INFO L225 Difference]: With dead ends: 62791 [2022-03-03 18:41:28,017 INFO L226 Difference]: Without dead ends: 60317 [2022-03-03 18:41:28,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:28,018 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 374 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:28,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 286 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 18:41:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60317 states. [2022-03-03 18:41:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60317 to 24604. [2022-03-03 18:41:29,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24603 states have (on average 5.586879648823314) internal successors, (137454), 24603 states have internal predecessors, (137454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 137454 transitions. [2022-03-03 18:41:29,384 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 137454 transitions. Word has length 33 [2022-03-03 18:41:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:29,384 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 137454 transitions. [2022-03-03 18:41:29,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 137454 transitions. [2022-03-03 18:41:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:29,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:29,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:29,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 18:41:29,454 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:29,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:29,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1040230915, now seen corresponding path program 17 times [2022-03-03 18:41:29,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:29,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615198304] [2022-03-03 18:41:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:29,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:30,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:30,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615198304] [2022-03-03 18:41:30,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615198304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:30,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:30,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:30,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714133438] [2022-03-03 18:41:30,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:30,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:30,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:30,067 INFO L87 Difference]: Start difference. First operand 24604 states and 137454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:31,381 INFO L93 Difference]: Finished difference Result 62416 states and 332816 transitions. [2022-03-03 18:41:31,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:31,382 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:31,750 INFO L225 Difference]: With dead ends: 62416 [2022-03-03 18:41:31,750 INFO L226 Difference]: Without dead ends: 60601 [2022-03-03 18:41:31,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:31,751 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:31,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 323 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60601 states. [2022-03-03 18:41:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60601 to 24888. [2022-03-03 18:41:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24887 states have (on average 5.575521356531523) internal successors, (138758), 24887 states have internal predecessors, (138758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 138758 transitions. [2022-03-03 18:41:33,432 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 138758 transitions. Word has length 33 [2022-03-03 18:41:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:33,432 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 138758 transitions. [2022-03-03 18:41:33,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 138758 transitions. [2022-03-03 18:41:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:33,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:33,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:33,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 18:41:33,502 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1266485919, now seen corresponding path program 18 times [2022-03-03 18:41:33,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:33,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382671277] [2022-03-03 18:41:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:33,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:33,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382671277] [2022-03-03 18:41:33,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382671277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:33,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:33,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:33,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945891137] [2022-03-03 18:41:33,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:33,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:33,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:33,791 INFO L87 Difference]: Start difference. First operand 24888 states and 138758 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:34,954 INFO L93 Difference]: Finished difference Result 62791 states and 334479 transitions. [2022-03-03 18:41:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:35,563 INFO L225 Difference]: With dead ends: 62791 [2022-03-03 18:41:35,563 INFO L226 Difference]: Without dead ends: 60213 [2022-03-03 18:41:35,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:35,565 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 312 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:35,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 363 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:35,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60213 states. [2022-03-03 18:41:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60213 to 24500. [2022-03-03 18:41:36,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24500 states, 24499 states have (on average 5.5913302583778925) internal successors, (136982), 24499 states have internal predecessors, (136982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24500 states to 24500 states and 136982 transitions. [2022-03-03 18:41:36,926 INFO L78 Accepts]: Start accepts. Automaton has 24500 states and 136982 transitions. Word has length 33 [2022-03-03 18:41:36,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:36,926 INFO L470 AbstractCegarLoop]: Abstraction has 24500 states and 136982 transitions. [2022-03-03 18:41:36,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:36,927 INFO L276 IsEmpty]: Start isEmpty. Operand 24500 states and 136982 transitions. [2022-03-03 18:41:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:36,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:36,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:36,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 18:41:36,991 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1372247237, now seen corresponding path program 19 times [2022-03-03 18:41:36,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:36,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573614053] [2022-03-03 18:41:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:36,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:37,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:37,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573614053] [2022-03-03 18:41:37,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573614053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:37,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:37,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:37,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328771547] [2022-03-03 18:41:37,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:37,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:37,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:37,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:37,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:37,588 INFO L87 Difference]: Start difference. First operand 24500 states and 136982 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:38,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:38,819 INFO L93 Difference]: Finished difference Result 62809 states and 335481 transitions. [2022-03-03 18:41:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:39,204 INFO L225 Difference]: With dead ends: 62809 [2022-03-03 18:41:39,204 INFO L226 Difference]: Without dead ends: 60786 [2022-03-03 18:41:39,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:39,205 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 355 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:39,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 270 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60786 states. [2022-03-03 18:41:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60786 to 24856. [2022-03-03 18:41:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24856 states, 24855 states have (on average 5.583504325085496) internal successors, (138778), 24855 states have internal predecessors, (138778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24856 states to 24856 states and 138778 transitions. [2022-03-03 18:41:40,959 INFO L78 Accepts]: Start accepts. Automaton has 24856 states and 138778 transitions. Word has length 33 [2022-03-03 18:41:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:40,959 INFO L470 AbstractCegarLoop]: Abstraction has 24856 states and 138778 transitions. [2022-03-03 18:41:40,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 24856 states and 138778 transitions. [2022-03-03 18:41:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:41,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:41,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:41,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 18:41:41,033 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash -671089757, now seen corresponding path program 20 times [2022-03-03 18:41:41,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:41,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177459080] [2022-03-03 18:41:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:41,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:41,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:41,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177459080] [2022-03-03 18:41:41,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177459080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:41,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:41,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:41,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388349288] [2022-03-03 18:41:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:41,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:41,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:41,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:41,295 INFO L87 Difference]: Start difference. First operand 24856 states and 138778 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:42,613 INFO L93 Difference]: Finished difference Result 62601 states and 334105 transitions. [2022-03-03 18:41:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:42,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:43,109 INFO L225 Difference]: With dead ends: 62601 [2022-03-03 18:41:43,114 INFO L226 Difference]: Without dead ends: 60570 [2022-03-03 18:41:43,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:43,115 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 397 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:43,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 290 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60570 states. [2022-03-03 18:41:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60570 to 24640. [2022-03-03 18:41:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24640 states, 24639 states have (on average 5.5886196680060065) internal successors, (137698), 24639 states have internal predecessors, (137698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24640 states to 24640 states and 137698 transitions. [2022-03-03 18:41:44,893 INFO L78 Accepts]: Start accepts. Automaton has 24640 states and 137698 transitions. Word has length 33 [2022-03-03 18:41:44,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:44,894 INFO L470 AbstractCegarLoop]: Abstraction has 24640 states and 137698 transitions. [2022-03-03 18:41:44,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:44,894 INFO L276 IsEmpty]: Start isEmpty. Operand 24640 states and 137698 transitions. [2022-03-03 18:41:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:44,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:44,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:44,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 18:41:44,970 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash 820494499, now seen corresponding path program 21 times [2022-03-03 18:41:44,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:44,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556283108] [2022-03-03 18:41:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:45,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:45,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556283108] [2022-03-03 18:41:45,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556283108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:45,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:45,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:45,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281165038] [2022-03-03 18:41:45,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:45,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:45,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:45,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:45,489 INFO L87 Difference]: Start difference. First operand 24640 states and 137698 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:46,723 INFO L93 Difference]: Finished difference Result 63356 states and 338224 transitions. [2022-03-03 18:41:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:47,085 INFO L225 Difference]: With dead ends: 63356 [2022-03-03 18:41:47,086 INFO L226 Difference]: Without dead ends: 61333 [2022-03-03 18:41:47,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:47,086 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:47,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 312 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:47,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61333 states. [2022-03-03 18:41:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61333 to 25028. [2022-03-03 18:41:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25028 states, 25027 states have (on average 5.575178806888561) internal successors, (139530), 25027 states have internal predecessors, (139530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25028 states to 25028 states and 139530 transitions. [2022-03-03 18:41:48,772 INFO L78 Accepts]: Start accepts. Automaton has 25028 states and 139530 transitions. Word has length 33 [2022-03-03 18:41:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:48,772 INFO L470 AbstractCegarLoop]: Abstraction has 25028 states and 139530 transitions. [2022-03-03 18:41:48,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 25028 states and 139530 transitions. [2022-03-03 18:41:48,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:48,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:48,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:48,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 18:41:48,839 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:48,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2120226653, now seen corresponding path program 22 times [2022-03-03 18:41:48,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:48,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690664003] [2022-03-03 18:41:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:49,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:49,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:49,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690664003] [2022-03-03 18:41:49,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690664003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:49,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:49,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:49,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153283798] [2022-03-03 18:41:49,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:49,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:49,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:49,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:49,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:49,121 INFO L87 Difference]: Start difference. First operand 25028 states and 139530 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:50,250 INFO L93 Difference]: Finished difference Result 63523 states and 338623 transitions. [2022-03-03 18:41:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:50,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:50,854 INFO L225 Difference]: With dead ends: 63523 [2022-03-03 18:41:50,855 INFO L226 Difference]: Without dead ends: 60945 [2022-03-03 18:41:50,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:50,856 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 355 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:50,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 337 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60945 states. [2022-03-03 18:41:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60945 to 24640. [2022-03-03 18:41:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24640 states, 24639 states have (on average 5.58293761922156) internal successors, (137558), 24639 states have internal predecessors, (137558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24640 states to 24640 states and 137558 transitions. [2022-03-03 18:41:52,191 INFO L78 Accepts]: Start accepts. Automaton has 24640 states and 137558 transitions. Word has length 33 [2022-03-03 18:41:52,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:52,191 INFO L470 AbstractCegarLoop]: Abstraction has 24640 states and 137558 transitions. [2022-03-03 18:41:52,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 24640 states and 137558 transitions. [2022-03-03 18:41:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:52,267 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:52,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:52,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 18:41:52,268 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1802842113, now seen corresponding path program 23 times [2022-03-03 18:41:52,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:52,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063885543] [2022-03-03 18:41:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:52,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:52,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:52,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063885543] [2022-03-03 18:41:52,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063885543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:52,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:52,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:52,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201317144] [2022-03-03 18:41:52,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:52,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:52,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:52,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:52,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:52,847 INFO L87 Difference]: Start difference. First operand 24640 states and 137558 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:54,054 INFO L93 Difference]: Finished difference Result 62836 states and 335132 transitions. [2022-03-03 18:41:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:54,401 INFO L225 Difference]: With dead ends: 62836 [2022-03-03 18:41:54,401 INFO L226 Difference]: Without dead ends: 61021 [2022-03-03 18:41:54,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:54,402 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 376 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:54,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 295 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:41:54,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61021 states. [2022-03-03 18:41:55,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61021 to 24924. [2022-03-03 18:41:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24924 states, 24923 states have (on average 5.571640653211893) internal successors, (138862), 24923 states have internal predecessors, (138862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24924 states to 24924 states and 138862 transitions. [2022-03-03 18:41:56,038 INFO L78 Accepts]: Start accepts. Automaton has 24924 states and 138862 transitions. Word has length 33 [2022-03-03 18:41:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:56,038 INFO L470 AbstractCegarLoop]: Abstraction has 24924 states and 138862 transitions. [2022-03-03 18:41:56,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24924 states and 138862 transitions. [2022-03-03 18:41:56,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:56,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:56,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:56,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 18:41:56,110 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:56,110 INFO L85 PathProgramCache]: Analyzing trace with hash -985903005, now seen corresponding path program 24 times [2022-03-03 18:41:56,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:56,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745694115] [2022-03-03 18:41:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:56,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:56,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:56,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745694115] [2022-03-03 18:41:56,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745694115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:56,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:56,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:56,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819695751] [2022-03-03 18:41:56,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:56,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:56,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:56,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:56,389 INFO L87 Difference]: Start difference. First operand 24924 states and 138862 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:41:57,439 INFO L93 Difference]: Finished difference Result 63211 states and 336795 transitions. [2022-03-03 18:41:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:41:57,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:41:57,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:41:57,744 INFO L225 Difference]: With dead ends: 63211 [2022-03-03 18:41:57,744 INFO L226 Difference]: Without dead ends: 60545 [2022-03-03 18:41:57,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:41:57,744 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:41:57,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 266 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:41:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60545 states. [2022-03-03 18:41:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60545 to 24448. [2022-03-03 18:41:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.594633288338037) internal successors, (136772), 24447 states have internal predecessors, (136772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:59,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136772 transitions. [2022-03-03 18:41:59,290 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136772 transitions. Word has length 33 [2022-03-03 18:41:59,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:41:59,290 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136772 transitions. [2022-03-03 18:41:59,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:41:59,290 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136772 transitions. [2022-03-03 18:41:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:41:59,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:41:59,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:41:59,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 18:41:59,354 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:41:59,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:41:59,354 INFO L85 PathProgramCache]: Analyzing trace with hash 232677161, now seen corresponding path program 25 times [2022-03-03 18:41:59,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:41:59,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933473245] [2022-03-03 18:41:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:41:59,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:41:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:41:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:41:59,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:41:59,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933473245] [2022-03-03 18:41:59,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933473245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:41:59,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:41:59,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:41:59,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201282139] [2022-03-03 18:41:59,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:41:59,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:41:59,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:41:59,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:41:59,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:41:59,951 INFO L87 Difference]: Start difference. First operand 24448 states and 136772 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:01,066 INFO L93 Difference]: Finished difference Result 63444 states and 339101 transitions. [2022-03-03 18:42:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:01,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:01,438 INFO L225 Difference]: With dead ends: 63444 [2022-03-03 18:42:01,438 INFO L226 Difference]: Without dead ends: 61629 [2022-03-03 18:42:01,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:01,439 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 391 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:01,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 252 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:42:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61629 states. [2022-03-03 18:42:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61629 to 24890. [2022-03-03 18:42:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24890 states, 24889 states have (on average 5.588613443689984) internal successors, (139095), 24889 states have internal predecessors, (139095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24890 states to 24890 states and 139095 transitions. [2022-03-03 18:42:03,075 INFO L78 Accepts]: Start accepts. Automaton has 24890 states and 139095 transitions. Word has length 33 [2022-03-03 18:42:03,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:03,075 INFO L470 AbstractCegarLoop]: Abstraction has 24890 states and 139095 transitions. [2022-03-03 18:42:03,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:03,076 INFO L276 IsEmpty]: Start isEmpty. Operand 24890 states and 139095 transitions. [2022-03-03 18:42:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:03,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:03,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:03,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 18:42:03,143 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 705638355, now seen corresponding path program 26 times [2022-03-03 18:42:03,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:03,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354047783] [2022-03-03 18:42:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:03,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:03,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354047783] [2022-03-03 18:42:03,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354047783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:03,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:03,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:03,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68294158] [2022-03-03 18:42:03,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:03,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:03,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:03,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:03,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:03,430 INFO L87 Difference]: Start difference. First operand 24890 states and 139095 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:04,540 INFO L93 Difference]: Finished difference Result 63652 states and 340045 transitions. [2022-03-03 18:42:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:05,129 INFO L225 Difference]: With dead ends: 63652 [2022-03-03 18:42:05,129 INFO L226 Difference]: Without dead ends: 61413 [2022-03-03 18:42:05,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:05,143 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 372 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:05,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 300 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61413 states. [2022-03-03 18:42:06,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61413 to 24674. [2022-03-03 18:42:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.5937664653670005) internal successors, (138015), 24673 states have internal predecessors, (138015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 138015 transitions. [2022-03-03 18:42:06,439 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 138015 transitions. Word has length 33 [2022-03-03 18:42:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:06,440 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 138015 transitions. [2022-03-03 18:42:06,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 138015 transitions. [2022-03-03 18:42:06,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:06,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:06,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:06,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 18:42:06,508 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash -146794263, now seen corresponding path program 27 times [2022-03-03 18:42:06,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:06,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108754965] [2022-03-03 18:42:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:07,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:07,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108754965] [2022-03-03 18:42:07,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108754965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:07,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:07,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:07,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265249986] [2022-03-03 18:42:07,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:07,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:07,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:07,105 INFO L87 Difference]: Start difference. First operand 24674 states and 138015 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:08,567 INFO L93 Difference]: Finished difference Result 63679 states and 340052 transitions. [2022-03-03 18:42:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:08,927 INFO L225 Difference]: With dead ends: 63679 [2022-03-03 18:42:08,927 INFO L226 Difference]: Without dead ends: 61864 [2022-03-03 18:42:08,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:08,927 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 331 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:08,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 293 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61864 states. [2022-03-03 18:42:10,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61864 to 24958. [2022-03-03 18:42:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24958 states, 24957 states have (on average 5.582361662058741) internal successors, (139319), 24957 states have internal predecessors, (139319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24958 states to 24958 states and 139319 transitions. [2022-03-03 18:42:10,563 INFO L78 Accepts]: Start accepts. Automaton has 24958 states and 139319 transitions. Word has length 33 [2022-03-03 18:42:10,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:10,564 INFO L470 AbstractCegarLoop]: Abstraction has 24958 states and 139319 transitions. [2022-03-03 18:42:10,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 24958 states and 139319 transitions. [2022-03-03 18:42:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:10,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:10,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:10,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 18:42:10,634 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:10,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:10,634 INFO L85 PathProgramCache]: Analyzing trace with hash 971085481, now seen corresponding path program 28 times [2022-03-03 18:42:10,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:10,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145493764] [2022-03-03 18:42:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:10,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:10,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:10,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145493764] [2022-03-03 18:42:10,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145493764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:10,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:10,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:10,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823136313] [2022-03-03 18:42:10,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:10,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:10,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:10,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:10,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:10,890 INFO L87 Difference]: Start difference. First operand 24958 states and 139319 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:11,943 INFO L93 Difference]: Finished difference Result 64054 states and 341715 transitions. [2022-03-03 18:42:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:11,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:12,543 INFO L225 Difference]: With dead ends: 64054 [2022-03-03 18:42:12,543 INFO L226 Difference]: Without dead ends: 61580 [2022-03-03 18:42:12,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:12,544 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 332 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:12,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 292 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:42:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61580 states. [2022-03-03 18:42:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61580 to 24674. [2022-03-03 18:42:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.588092246585336) internal successors, (137875), 24673 states have internal predecessors, (137875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137875 transitions. [2022-03-03 18:42:14,397 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137875 transitions. Word has length 33 [2022-03-03 18:42:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:14,397 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137875 transitions. [2022-03-03 18:42:14,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137875 transitions. [2022-03-03 18:42:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:14,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:14,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:14,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 18:42:14,481 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -18739791, now seen corresponding path program 29 times [2022-03-03 18:42:14,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:14,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856181185] [2022-03-03 18:42:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:14,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:14,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:14,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856181185] [2022-03-03 18:42:14,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856181185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:14,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:14,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:14,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577072049] [2022-03-03 18:42:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:14,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:14,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:14,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:14,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:14,799 INFO L87 Difference]: Start difference. First operand 24674 states and 137875 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:15,923 INFO L93 Difference]: Finished difference Result 64199 states and 342864 transitions. [2022-03-03 18:42:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:15,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:16,560 INFO L225 Difference]: With dead ends: 64199 [2022-03-03 18:42:16,560 INFO L226 Difference]: Without dead ends: 62176 [2022-03-03 18:42:16,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:16,561 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 382 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:16,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 282 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62176 states. [2022-03-03 18:42:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62176 to 25062. [2022-03-03 18:42:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25062 states, 25061 states have (on average 5.574677786201668) internal successors, (139707), 25061 states have internal predecessors, (139707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:18,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25062 states to 25062 states and 139707 transitions. [2022-03-03 18:42:18,187 INFO L78 Accepts]: Start accepts. Automaton has 25062 states and 139707 transitions. Word has length 33 [2022-03-03 18:42:18,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:18,187 INFO L470 AbstractCegarLoop]: Abstraction has 25062 states and 139707 transitions. [2022-03-03 18:42:18,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 25062 states and 139707 transitions. [2022-03-03 18:42:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:18,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:18,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:18,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 18:42:18,268 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:18,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:18,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1734711789, now seen corresponding path program 30 times [2022-03-03 18:42:18,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:18,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115107139] [2022-03-03 18:42:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:18,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:18,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:18,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115107139] [2022-03-03 18:42:18,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115107139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:18,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:18,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:18,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746101188] [2022-03-03 18:42:18,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:18,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:18,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:18,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:18,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:18,517 INFO L87 Difference]: Start difference. First operand 25062 states and 139707 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:19,675 INFO L93 Difference]: Finished difference Result 64366 states and 343263 transitions. [2022-03-03 18:42:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:19,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:20,016 INFO L225 Difference]: With dead ends: 64366 [2022-03-03 18:42:20,016 INFO L226 Difference]: Without dead ends: 61648 [2022-03-03 18:42:20,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:20,017 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 376 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:20,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 285 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:20,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61648 states. [2022-03-03 18:42:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61648 to 24534. [2022-03-03 18:42:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.593649370236009) internal successors, (137229), 24533 states have internal predecessors, (137229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:21,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137229 transitions. [2022-03-03 18:42:21,626 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137229 transitions. Word has length 33 [2022-03-03 18:42:21,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:21,626 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137229 transitions. [2022-03-03 18:42:21,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:21,626 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137229 transitions. [2022-03-03 18:42:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:21,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:21,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:21,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 18:42:21,687 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1541537193, now seen corresponding path program 31 times [2022-03-03 18:42:21,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:21,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470805217] [2022-03-03 18:42:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:21,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:21,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470805217] [2022-03-03 18:42:21,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470805217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:21,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:21,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:21,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674142421] [2022-03-03 18:42:21,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:21,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:21,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:21,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:21,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:21,918 INFO L87 Difference]: Start difference. First operand 24534 states and 137229 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:23,065 INFO L93 Difference]: Finished difference Result 63155 states and 337637 transitions. [2022-03-03 18:42:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:23,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:23,800 INFO L225 Difference]: With dead ends: 63155 [2022-03-03 18:42:23,800 INFO L226 Difference]: Without dead ends: 61340 [2022-03-03 18:42:23,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:23,800 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 359 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:23,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 281 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61340 states. [2022-03-03 18:42:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61340 to 24858. [2022-03-03 18:42:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24857 states have (on average 5.585911413283984) internal successors, (138849), 24857 states have internal predecessors, (138849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 138849 transitions. [2022-03-03 18:42:25,462 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 138849 transitions. Word has length 33 [2022-03-03 18:42:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:25,462 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 138849 transitions. [2022-03-03 18:42:25,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 138849 transitions. [2022-03-03 18:42:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:25,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:25,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:25,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 18:42:25,605 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:25,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2014498387, now seen corresponding path program 32 times [2022-03-03 18:42:25,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:25,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808996624] [2022-03-03 18:42:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:25,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:25,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:25,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808996624] [2022-03-03 18:42:25,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808996624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:25,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:25,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:25,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26732924] [2022-03-03 18:42:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:25,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:25,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:25,907 INFO L87 Difference]: Start difference. First operand 24858 states and 138849 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:27,179 INFO L93 Difference]: Finished difference Result 63363 states and 338581 transitions. [2022-03-03 18:42:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:27,515 INFO L225 Difference]: With dead ends: 63363 [2022-03-03 18:42:27,516 INFO L226 Difference]: Without dead ends: 61124 [2022-03-03 18:42:27,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:27,516 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 344 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:27,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 294 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61124 states. [2022-03-03 18:42:28,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61124 to 24642. [2022-03-03 18:42:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.591047441256443) internal successors, (137769), 24641 states have internal predecessors, (137769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137769 transitions. [2022-03-03 18:42:29,091 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137769 transitions. Word has length 33 [2022-03-03 18:42:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:29,091 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137769 transitions. [2022-03-03 18:42:29,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137769 transitions. [2022-03-03 18:42:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:29,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:29,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:29,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 18:42:29,162 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:29,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash -542736629, now seen corresponding path program 33 times [2022-03-03 18:42:29,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:29,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804044289] [2022-03-03 18:42:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:29,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:29,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804044289] [2022-03-03 18:42:29,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804044289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:29,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:29,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:29,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141179373] [2022-03-03 18:42:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:29,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:29,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:29,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:29,391 INFO L87 Difference]: Start difference. First operand 24642 states and 137769 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:30,468 INFO L93 Difference]: Finished difference Result 63197 states and 337690 transitions. [2022-03-03 18:42:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:30,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:31,098 INFO L225 Difference]: With dead ends: 63197 [2022-03-03 18:42:31,099 INFO L226 Difference]: Without dead ends: 61382 [2022-03-03 18:42:31,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:31,099 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 365 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:31,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 270 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:42:31,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61382 states. [2022-03-03 18:42:32,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61382 to 24862. [2022-03-03 18:42:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24862 states, 24861 states have (on average 5.581151200675757) internal successors, (138753), 24861 states have internal predecessors, (138753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24862 states to 24862 states and 138753 transitions. [2022-03-03 18:42:32,701 INFO L78 Accepts]: Start accepts. Automaton has 24862 states and 138753 transitions. Word has length 33 [2022-03-03 18:42:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:32,701 INFO L470 AbstractCegarLoop]: Abstraction has 24862 states and 138753 transitions. [2022-03-03 18:42:32,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24862 states and 138753 transitions. [2022-03-03 18:42:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:32,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:32,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:32,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 18:42:32,883 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:32,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:32,883 INFO L85 PathProgramCache]: Analyzing trace with hash 568712395, now seen corresponding path program 34 times [2022-03-03 18:42:32,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:32,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122059846] [2022-03-03 18:42:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:32,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:33,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:33,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122059846] [2022-03-03 18:42:33,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122059846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:33,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:33,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:33,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193873] [2022-03-03 18:42:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:33,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:33,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:33,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:33,156 INFO L87 Difference]: Start difference. First operand 24862 states and 138753 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:34,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:34,375 INFO L93 Difference]: Finished difference Result 63443 states and 338775 transitions. [2022-03-03 18:42:34,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:34,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:34,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:34,738 INFO L225 Difference]: With dead ends: 63443 [2022-03-03 18:42:34,738 INFO L226 Difference]: Without dead ends: 61162 [2022-03-03 18:42:34,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:34,739 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 367 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:34,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 299 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:34,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61162 states. [2022-03-03 18:42:36,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61162 to 24642. [2022-03-03 18:42:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.586664502252344) internal successors, (137661), 24641 states have internal predecessors, (137661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137661 transitions. [2022-03-03 18:42:36,329 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137661 transitions. Word has length 33 [2022-03-03 18:42:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:36,329 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137661 transitions. [2022-03-03 18:42:36,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137661 transitions. [2022-03-03 18:42:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:36,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:36,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:36,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 18:42:36,396 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash 236510291, now seen corresponding path program 35 times [2022-03-03 18:42:36,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:36,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320851374] [2022-03-03 18:42:36,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:36,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:36,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:36,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320851374] [2022-03-03 18:42:36,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320851374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:36,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:36,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:36,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939811581] [2022-03-03 18:42:36,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:36,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:36,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:36,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:36,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:36,655 INFO L87 Difference]: Start difference. First operand 24642 states and 137661 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:37,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:37,707 INFO L93 Difference]: Finished difference Result 63717 states and 340534 transitions. [2022-03-03 18:42:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:37,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:38,345 INFO L225 Difference]: With dead ends: 63717 [2022-03-03 18:42:38,345 INFO L226 Difference]: Without dead ends: 61694 [2022-03-03 18:42:38,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:38,346 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 366 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:38,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 278 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:42:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61694 states. [2022-03-03 18:42:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61694 to 24966. [2022-03-03 18:42:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24966 states, 24965 states have (on average 5.574724614460244) internal successors, (139173), 24965 states have internal predecessors, (139173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24966 states to 24966 states and 139173 transitions. [2022-03-03 18:42:39,653 INFO L78 Accepts]: Start accepts. Automaton has 24966 states and 139173 transitions. Word has length 33 [2022-03-03 18:42:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:39,654 INFO L470 AbstractCegarLoop]: Abstraction has 24966 states and 139173 transitions. [2022-03-03 18:42:39,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 24966 states and 139173 transitions. [2022-03-03 18:42:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:40,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:40,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:40,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 18:42:40,093 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:40,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:40,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1458455499, now seen corresponding path program 36 times [2022-03-03 18:42:40,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:40,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982578100] [2022-03-03 18:42:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:40,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:40,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:40,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:40,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982578100] [2022-03-03 18:42:40,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982578100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:40,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:40,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:40,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192781211] [2022-03-03 18:42:40,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:40,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:40,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:40,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:40,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:40,345 INFO L87 Difference]: Start difference. First operand 24966 states and 139173 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:41,596 INFO L93 Difference]: Finished difference Result 63755 states and 340355 transitions. [2022-03-03 18:42:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:41,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:41,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:41,937 INFO L225 Difference]: With dead ends: 63755 [2022-03-03 18:42:41,937 INFO L226 Difference]: Without dead ends: 61262 [2022-03-03 18:42:41,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:41,937 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 333 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:41,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 310 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61262 states. [2022-03-03 18:42:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61262 to 24534. [2022-03-03 18:42:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.591448253373008) internal successors, (137175), 24533 states have internal predecessors, (137175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137175 transitions. [2022-03-03 18:42:43,645 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137175 transitions. Word has length 33 [2022-03-03 18:42:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:43,646 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137175 transitions. [2022-03-03 18:42:43,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137175 transitions. [2022-03-03 18:42:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:43,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:43,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:43,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 18:42:43,725 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:43,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1880368949, now seen corresponding path program 37 times [2022-03-03 18:42:43,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:43,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162030770] [2022-03-03 18:42:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:44,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:44,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162030770] [2022-03-03 18:42:44,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162030770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:44,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:44,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:44,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342957175] [2022-03-03 18:42:44,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:44,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:44,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:44,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:44,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:44,124 INFO L87 Difference]: Start difference. First operand 24534 states and 137175 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:45,499 INFO L93 Difference]: Finished difference Result 63838 states and 340688 transitions. [2022-03-03 18:42:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:45,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:46,252 INFO L225 Difference]: With dead ends: 63838 [2022-03-03 18:42:46,252 INFO L226 Difference]: Without dead ends: 62023 [2022-03-03 18:42:46,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:46,253 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 374 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:46,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 295 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 18:42:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62023 states. [2022-03-03 18:42:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62023 to 24992. [2022-03-03 18:42:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24992 states, 24991 states have (on average 5.580248889600256) internal successors, (139456), 24991 states have internal predecessors, (139456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24992 states to 24992 states and 139456 transitions. [2022-03-03 18:42:47,895 INFO L78 Accepts]: Start accepts. Automaton has 24992 states and 139456 transitions. Word has length 33 [2022-03-03 18:42:47,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:47,903 INFO L470 AbstractCegarLoop]: Abstraction has 24992 states and 139456 transitions. [2022-03-03 18:42:47,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24992 states and 139456 transitions. [2022-03-03 18:42:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:48,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:48,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:48,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 18:42:48,052 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:48,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash -762489205, now seen corresponding path program 38 times [2022-03-03 18:42:48,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:48,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613387795] [2022-03-03 18:42:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:48,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:48,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:48,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613387795] [2022-03-03 18:42:48,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613387795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:48,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:48,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:48,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380145007] [2022-03-03 18:42:48,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:48,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:48,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:48,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:48,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:48,353 INFO L87 Difference]: Start difference. First operand 24992 states and 139456 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:49,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:49,612 INFO L93 Difference]: Finished difference Result 64213 states and 342351 transitions. [2022-03-03 18:42:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:49,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:49,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:49,944 INFO L225 Difference]: With dead ends: 64213 [2022-03-03 18:42:49,945 INFO L226 Difference]: Without dead ends: 61739 [2022-03-03 18:42:49,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:49,945 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 351 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:49,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 317 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61739 states. [2022-03-03 18:42:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61739 to 24708. [2022-03-03 18:42:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.5858663536649535) internal successors, (138010), 24707 states have internal predecessors, (138010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 138010 transitions. [2022-03-03 18:42:51,533 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 138010 transitions. Word has length 33 [2022-03-03 18:42:51,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:51,533 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 138010 transitions. [2022-03-03 18:42:51,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 138010 transitions. [2022-03-03 18:42:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:51,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:51,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:51,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 18:42:51,602 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:51,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1567801385, now seen corresponding path program 39 times [2022-03-03 18:42:51,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:51,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314745440] [2022-03-03 18:42:51,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:51,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:51,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:51,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314745440] [2022-03-03 18:42:51,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314745440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:51,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:51,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:51,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726861359] [2022-03-03 18:42:51,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:51,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:51,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:51,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:51,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:51,877 INFO L87 Difference]: Start difference. First operand 24708 states and 138010 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:53,025 INFO L93 Difference]: Finished difference Result 63645 states and 339648 transitions. [2022-03-03 18:42:53,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:53,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:53,644 INFO L225 Difference]: With dead ends: 63645 [2022-03-03 18:42:53,644 INFO L226 Difference]: Without dead ends: 61830 [2022-03-03 18:42:53,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:53,645 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 361 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:53,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 325 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:53,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61830 states. [2022-03-03 18:42:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61830 to 24928. [2022-03-03 18:42:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24928 states, 24927 states have (on average 5.576042042764874) internal successors, (138994), 24927 states have internal predecessors, (138994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 138994 transitions. [2022-03-03 18:42:55,238 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 138994 transitions. Word has length 33 [2022-03-03 18:42:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:55,240 INFO L470 AbstractCegarLoop]: Abstraction has 24928 states and 138994 transitions. [2022-03-03 18:42:55,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 138994 transitions. [2022-03-03 18:42:55,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:55,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:55,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:55,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 18:42:55,388 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:55,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash 968894091, now seen corresponding path program 40 times [2022-03-03 18:42:55,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:55,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98378748] [2022-03-03 18:42:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:55,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:55,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98378748] [2022-03-03 18:42:55,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98378748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:55,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:55,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:55,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802519618] [2022-03-03 18:42:55,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:55,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:55,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:55,661 INFO L87 Difference]: Start difference. First operand 24928 states and 138994 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:42:56,862 INFO L93 Difference]: Finished difference Result 63891 states and 340733 transitions. [2022-03-03 18:42:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:42:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:42:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:42:57,201 INFO L225 Difference]: With dead ends: 63891 [2022-03-03 18:42:57,201 INFO L226 Difference]: Without dead ends: 61610 [2022-03-03 18:42:57,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:42:57,202 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 355 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:42:57,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 304 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:42:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61610 states. [2022-03-03 18:42:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61610 to 24708. [2022-03-03 18:42:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.581414174120694) internal successors, (137900), 24707 states have internal predecessors, (137900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137900 transitions. [2022-03-03 18:42:58,868 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137900 transitions. Word has length 33 [2022-03-03 18:42:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:42:58,868 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137900 transitions. [2022-03-03 18:42:58,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:42:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137900 transitions. [2022-03-03 18:42:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:42:58,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:42:58,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:42:58,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 18:42:58,942 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:42:58,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:42:58,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2106833845, now seen corresponding path program 41 times [2022-03-03 18:42:58,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:42:58,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532332265] [2022-03-03 18:42:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:42:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:42:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:42:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:42:59,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:42:59,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532332265] [2022-03-03 18:42:59,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532332265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:42:59,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:42:59,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:42:59,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986015852] [2022-03-03 18:42:59,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:42:59,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:42:59,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:42:59,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:42:59,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:42:59,171 INFO L87 Difference]: Start difference. First operand 24708 states and 137900 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:00,241 INFO L93 Difference]: Finished difference Result 64646 states and 344594 transitions. [2022-03-03 18:43:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:00,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:00,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:00,867 INFO L225 Difference]: With dead ends: 64646 [2022-03-03 18:43:00,867 INFO L226 Difference]: Without dead ends: 62456 [2022-03-03 18:43:00,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:00,868 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 386 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:00,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 279 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 18:43:00,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62456 states. [2022-03-03 18:43:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62456 to 25179. [2022-03-03 18:43:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25179 states, 25178 states have (on average 5.55989355786798) internal successors, (139987), 25178 states have internal predecessors, (139987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25179 states to 25179 states and 139987 transitions. [2022-03-03 18:43:02,565 INFO L78 Accepts]: Start accepts. Automaton has 25179 states and 139987 transitions. Word has length 33 [2022-03-03 18:43:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:02,565 INFO L470 AbstractCegarLoop]: Abstraction has 25179 states and 139987 transitions. [2022-03-03 18:43:02,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 25179 states and 139987 transitions. [2022-03-03 18:43:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:02,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:02,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:02,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 18:43:02,767 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1859750569, now seen corresponding path program 42 times [2022-03-03 18:43:02,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:02,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092170363] [2022-03-03 18:43:02,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:03,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:03,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092170363] [2022-03-03 18:43:03,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092170363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:03,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:03,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:03,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804465293] [2022-03-03 18:43:03,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:03,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:03,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:03,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:03,031 INFO L87 Difference]: Start difference. First operand 25179 states and 139987 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:04,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:04,214 INFO L93 Difference]: Finished difference Result 64517 states and 343609 transitions. [2022-03-03 18:43:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:04,538 INFO L225 Difference]: With dead ends: 64517 [2022-03-03 18:43:04,538 INFO L226 Difference]: Without dead ends: 61811 [2022-03-03 18:43:04,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:04,539 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 360 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:04,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 284 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:04,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61811 states. [2022-03-03 18:43:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61811 to 24534. [2022-03-03 18:43:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.587942770961562) internal successors, (137089), 24533 states have internal predecessors, (137089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137089 transitions. [2022-03-03 18:43:06,125 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137089 transitions. Word has length 33 [2022-03-03 18:43:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:06,125 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137089 transitions. [2022-03-03 18:43:06,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137089 transitions. [2022-03-03 18:43:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:06,182 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:06,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:06,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 18:43:06,182 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash 530492081, now seen corresponding path program 43 times [2022-03-03 18:43:06,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:06,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879375279] [2022-03-03 18:43:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:06,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:06,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:06,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879375279] [2022-03-03 18:43:06,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879375279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:06,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:06,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:06,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933072270] [2022-03-03 18:43:06,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:06,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:06,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:06,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:06,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:06,430 INFO L87 Difference]: Start difference. First operand 24534 states and 137089 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:07,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:07,589 INFO L93 Difference]: Finished difference Result 64826 states and 346320 transitions. [2022-03-03 18:43:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:07,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:08,308 INFO L225 Difference]: With dead ends: 64826 [2022-03-03 18:43:08,308 INFO L226 Difference]: Without dead ends: 62803 [2022-03-03 18:43:08,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:08,309 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 341 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:08,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 333 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:43:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62803 states. [2022-03-03 18:43:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62803 to 25148. [2022-03-03 18:43:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25148 states, 25147 states have (on average 5.576808366803197) internal successors, (140240), 25147 states have internal predecessors, (140240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25148 states to 25148 states and 140240 transitions. [2022-03-03 18:43:10,011 INFO L78 Accepts]: Start accepts. Automaton has 25148 states and 140240 transitions. Word has length 33 [2022-03-03 18:43:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:10,011 INFO L470 AbstractCegarLoop]: Abstraction has 25148 states and 140240 transitions. [2022-03-03 18:43:10,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 25148 states and 140240 transitions. [2022-03-03 18:43:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:10,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:10,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:10,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 18:43:10,097 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1185479917, now seen corresponding path program 44 times [2022-03-03 18:43:10,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:10,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119288073] [2022-03-03 18:43:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:10,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:10,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119288073] [2022-03-03 18:43:10,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119288073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:10,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:10,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:10,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495111756] [2022-03-03 18:43:10,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:10,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:10,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:10,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:10,349 INFO L87 Difference]: Start difference. First operand 25148 states and 140240 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:11,503 INFO L93 Difference]: Finished difference Result 64993 states and 346719 transitions. [2022-03-03 18:43:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:11,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:11,855 INFO L225 Difference]: With dead ends: 64993 [2022-03-03 18:43:11,855 INFO L226 Difference]: Without dead ends: 62415 [2022-03-03 18:43:11,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:11,855 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 346 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:11,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 347 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:43:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62415 states. [2022-03-03 18:43:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62415 to 24760. [2022-03-03 18:43:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.58237408619088) internal successors, (138214), 24759 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138214 transitions. [2022-03-03 18:43:13,701 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138214 transitions. Word has length 33 [2022-03-03 18:43:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:13,701 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138214 transitions. [2022-03-03 18:43:13,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:13,701 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138214 transitions. [2022-03-03 18:43:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:13,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:13,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:13,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 18:43:13,799 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:13,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1611554707, now seen corresponding path program 45 times [2022-03-03 18:43:13,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:13,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125363389] [2022-03-03 18:43:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:14,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:14,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125363389] [2022-03-03 18:43:14,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125363389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:14,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:14,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:14,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281019850] [2022-03-03 18:43:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:14,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:14,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:14,133 INFO L87 Difference]: Start difference. First operand 24760 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:15,545 INFO L93 Difference]: Finished difference Result 64633 states and 345228 transitions. [2022-03-03 18:43:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:15,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:16,331 INFO L225 Difference]: With dead ends: 64633 [2022-03-03 18:43:16,331 INFO L226 Difference]: Without dead ends: 62610 [2022-03-03 18:43:16,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:16,331 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 347 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:16,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 291 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 18:43:16,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62610 states. [2022-03-03 18:43:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62610 to 25084. [2022-03-03 18:43:17,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25084 states, 25083 states have (on average 5.570545787983893) internal successors, (139726), 25083 states have internal predecessors, (139726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25084 states to 25084 states and 139726 transitions. [2022-03-03 18:43:18,222 INFO L78 Accepts]: Start accepts. Automaton has 25084 states and 139726 transitions. Word has length 33 [2022-03-03 18:43:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:18,222 INFO L470 AbstractCegarLoop]: Abstraction has 25084 states and 139726 transitions. [2022-03-03 18:43:18,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 25084 states and 139726 transitions. [2022-03-03 18:43:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:18,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:18,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:18,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 18:43:18,310 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1801151853, now seen corresponding path program 46 times [2022-03-03 18:43:18,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:18,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926170923] [2022-03-03 18:43:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:18,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:18,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:18,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926170923] [2022-03-03 18:43:18,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926170923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:18,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:18,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:18,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082577945] [2022-03-03 18:43:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:18,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:18,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:18,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:18,561 INFO L87 Difference]: Start difference. First operand 25084 states and 139726 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:19,656 INFO L93 Difference]: Finished difference Result 64671 states and 345049 transitions. [2022-03-03 18:43:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:19,990 INFO L225 Difference]: With dead ends: 64671 [2022-03-03 18:43:19,990 INFO L226 Difference]: Without dead ends: 62286 [2022-03-03 18:43:19,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:19,991 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 354 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:19,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 261 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:20,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62286 states. [2022-03-03 18:43:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62286 to 24760. [2022-03-03 18:43:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.575831010945515) internal successors, (138052), 24759 states have internal predecessors, (138052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138052 transitions. [2022-03-03 18:43:21,639 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138052 transitions. Word has length 33 [2022-03-03 18:43:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:21,639 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138052 transitions. [2022-03-03 18:43:21,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138052 transitions. [2022-03-03 18:43:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:21,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:21,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:21,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 18:43:21,707 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:21,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2039968373, now seen corresponding path program 47 times [2022-03-03 18:43:21,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:21,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855693512] [2022-03-03 18:43:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:21,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:21,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:21,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855693512] [2022-03-03 18:43:21,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855693512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:21,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:21,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:21,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566737008] [2022-03-03 18:43:21,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:21,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:21,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:21,934 INFO L87 Difference]: Start difference. First operand 24760 states and 138052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:23,023 INFO L93 Difference]: Finished difference Result 65114 states and 347170 transitions. [2022-03-03 18:43:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:23,827 INFO L225 Difference]: With dead ends: 65114 [2022-03-03 18:43:23,827 INFO L226 Difference]: Without dead ends: 62924 [2022-03-03 18:43:23,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:23,828 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 413 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:23,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 261 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. [2022-03-03 18:43:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62924 to 25231. [2022-03-03 18:43:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25231 states, 25230 states have (on average 5.554458977407847) internal successors, (140139), 25230 states have internal predecessors, (140139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25231 states to 25231 states and 140139 transitions. [2022-03-03 18:43:25,559 INFO L78 Accepts]: Start accepts. Automaton has 25231 states and 140139 transitions. Word has length 33 [2022-03-03 18:43:25,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:25,560 INFO L470 AbstractCegarLoop]: Abstraction has 25231 states and 140139 transitions. [2022-03-03 18:43:25,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:25,560 INFO L276 IsEmpty]: Start isEmpty. Operand 25231 states and 140139 transitions. [2022-03-03 18:43:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:25,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:25,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:25,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 18:43:25,641 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:25,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash -3368621, now seen corresponding path program 48 times [2022-03-03 18:43:25,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:25,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594297260] [2022-03-03 18:43:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:25,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:25,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594297260] [2022-03-03 18:43:25,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594297260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:25,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:25,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:25,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586393726] [2022-03-03 18:43:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:25,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:25,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:25,880 INFO L87 Difference]: Start difference. First operand 25231 states and 140139 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:26,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:26,966 INFO L93 Difference]: Finished difference Result 64985 states and 346185 transitions. [2022-03-03 18:43:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:27,307 INFO L225 Difference]: With dead ends: 64985 [2022-03-03 18:43:27,307 INFO L226 Difference]: Without dead ends: 62141 [2022-03-03 18:43:27,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:27,308 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 343 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:27,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 286 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62141 states. [2022-03-03 18:43:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62141 to 24448. [2022-03-03 18:43:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.5932425246451505) internal successors, (136738), 24447 states have internal predecessors, (136738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136738 transitions. [2022-03-03 18:43:28,928 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136738 transitions. Word has length 33 [2022-03-03 18:43:28,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:28,928 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136738 transitions. [2022-03-03 18:43:28,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:28,928 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136738 transitions. [2022-03-03 18:43:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:28,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:28,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:28,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 18:43:28,988 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1603610477, now seen corresponding path program 49 times [2022-03-03 18:43:28,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:28,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361873586] [2022-03-03 18:43:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:29,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:29,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361873586] [2022-03-03 18:43:29,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361873586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:29,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:29,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:29,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771228910] [2022-03-03 18:43:29,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:29,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:29,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:29,224 INFO L87 Difference]: Start difference. First operand 24448 states and 136738 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:30,434 INFO L93 Difference]: Finished difference Result 61413 states and 328228 transitions. [2022-03-03 18:43:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:30,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:30,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:31,137 INFO L225 Difference]: With dead ends: 61413 [2022-03-03 18:43:31,137 INFO L226 Difference]: Without dead ends: 59598 [2022-03-03 18:43:31,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:31,138 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 357 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:31,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 334 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:43:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59598 states. [2022-03-03 18:43:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59598 to 24772. [2022-03-03 18:43:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24772 states, 24771 states have (on average 5.585483024504461) internal successors, (138358), 24771 states have internal predecessors, (138358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24772 states to 24772 states and 138358 transitions. [2022-03-03 18:43:32,816 INFO L78 Accepts]: Start accepts. Automaton has 24772 states and 138358 transitions. Word has length 33 [2022-03-03 18:43:32,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:32,816 INFO L470 AbstractCegarLoop]: Abstraction has 24772 states and 138358 transitions. [2022-03-03 18:43:32,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 24772 states and 138358 transitions. [2022-03-03 18:43:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:32,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:32,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:32,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 18:43:32,899 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1130649283, now seen corresponding path program 50 times [2022-03-03 18:43:32,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:32,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901627136] [2022-03-03 18:43:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:33,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:33,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901627136] [2022-03-03 18:43:33,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901627136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:33,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:33,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:33,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968636733] [2022-03-03 18:43:33,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:33,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:33,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:33,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:33,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:33,120 INFO L87 Difference]: Start difference. First operand 24772 states and 138358 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:34,197 INFO L93 Difference]: Finished difference Result 61621 states and 329172 transitions. [2022-03-03 18:43:34,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:34,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:34,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:34,515 INFO L225 Difference]: With dead ends: 61621 [2022-03-03 18:43:34,515 INFO L226 Difference]: Without dead ends: 59382 [2022-03-03 18:43:34,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:34,515 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 413 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:34,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 263 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59382 states. [2022-03-03 18:43:35,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59382 to 24556. [2022-03-03 18:43:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.592099368763999) internal successors, (137314), 24555 states have internal predecessors, (137314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137314 transitions. [2022-03-03 18:43:36,066 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137314 transitions. Word has length 33 [2022-03-03 18:43:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:36,066 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137314 transitions. [2022-03-03 18:43:36,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137314 transitions. [2022-03-03 18:43:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:36,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:36,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:36,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 18:43:36,134 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:36,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash -522547851, now seen corresponding path program 51 times [2022-03-03 18:43:36,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:36,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958504563] [2022-03-03 18:43:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:36,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:36,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958504563] [2022-03-03 18:43:36,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958504563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:36,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:36,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:36,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083533451] [2022-03-03 18:43:36,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:36,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:36,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:36,393 INFO L87 Difference]: Start difference. First operand 24556 states and 137314 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:37,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:37,426 INFO L93 Difference]: Finished difference Result 61133 states and 326576 transitions. [2022-03-03 18:43:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:38,006 INFO L225 Difference]: With dead ends: 61133 [2022-03-03 18:43:38,007 INFO L226 Difference]: Without dead ends: 59318 [2022-03-03 18:43:38,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:38,007 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 363 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:38,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 285 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:38,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59318 states. [2022-03-03 18:43:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59318 to 24700. [2022-03-03 18:43:39,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 24699 states have (on average 5.584760516620106) internal successors, (137938), 24699 states have internal predecessors, (137938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 137938 transitions. [2022-03-03 18:43:39,298 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 137938 transitions. Word has length 33 [2022-03-03 18:43:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:39,298 INFO L470 AbstractCegarLoop]: Abstraction has 24700 states and 137938 transitions. [2022-03-03 18:43:39,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 137938 transitions. [2022-03-03 18:43:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:39,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:39,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:39,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 18:43:39,366 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1742104033, now seen corresponding path program 52 times [2022-03-03 18:43:39,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:39,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925523964] [2022-03-03 18:43:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:39,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:39,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925523964] [2022-03-03 18:43:39,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925523964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:39,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:39,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:39,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119315759] [2022-03-03 18:43:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:39,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:39,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:39,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:39,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:39,944 INFO L87 Difference]: Start difference. First operand 24700 states and 137938 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:41,044 INFO L93 Difference]: Finished difference Result 61133 states and 326432 transitions. [2022-03-03 18:43:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:41,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:41,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:41,830 INFO L225 Difference]: With dead ends: 61133 [2022-03-03 18:43:41,830 INFO L226 Difference]: Without dead ends: 59174 [2022-03-03 18:43:41,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:41,836 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 347 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:41,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 285 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59174 states. [2022-03-03 18:43:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59174 to 24556. [2022-03-03 18:43:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.589167175727957) internal successors, (137242), 24555 states have internal predecessors, (137242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137242 transitions. [2022-03-03 18:43:43,569 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137242 transitions. Word has length 33 [2022-03-03 18:43:43,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:43,570 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137242 transitions. [2022-03-03 18:43:43,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137242 transitions. [2022-03-03 18:43:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:43,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:43,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:43,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 18:43:43,988 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:43,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:43,988 INFO L85 PathProgramCache]: Analyzing trace with hash -758017757, now seen corresponding path program 53 times [2022-03-03 18:43:43,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:43,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863088817] [2022-03-03 18:43:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:43,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:44,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:44,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863088817] [2022-03-03 18:43:44,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863088817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:44,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:44,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:44,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401305576] [2022-03-03 18:43:44,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:44,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:44,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:44,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:44,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:44,346 INFO L87 Difference]: Start difference. First operand 24556 states and 137242 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:45,530 INFO L93 Difference]: Finished difference Result 61621 states and 329244 transitions. [2022-03-03 18:43:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:45,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:45,878 INFO L225 Difference]: With dead ends: 61621 [2022-03-03 18:43:45,878 INFO L226 Difference]: Without dead ends: 59598 [2022-03-03 18:43:45,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:45,878 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:45,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 291 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59598 states. [2022-03-03 18:43:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59598 to 24772. [2022-03-03 18:43:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24772 states, 24771 states have (on average 5.579669775140285) internal successors, (138214), 24771 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24772 states to 24772 states and 138214 transitions. [2022-03-03 18:43:47,481 INFO L78 Accepts]: Start accepts. Automaton has 24772 states and 138214 transitions. Word has length 33 [2022-03-03 18:43:47,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:47,481 INFO L470 AbstractCegarLoop]: Abstraction has 24772 states and 138214 transitions. [2022-03-03 18:43:47,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:47,482 INFO L276 IsEmpty]: Start isEmpty. Operand 24772 states and 138214 transitions. [2022-03-03 18:43:47,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:47,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:47,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:47,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 18:43:47,549 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1493612545, now seen corresponding path program 54 times [2022-03-03 18:43:47,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:47,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859685808] [2022-03-03 18:43:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:47,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:47,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:47,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859685808] [2022-03-03 18:43:47,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859685808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:47,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:47,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:47,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485891744] [2022-03-03 18:43:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:47,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:47,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:47,786 INFO L87 Difference]: Start difference. First operand 24772 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:48,882 INFO L93 Difference]: Finished difference Result 61413 states and 327868 transitions. [2022-03-03 18:43:48,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:48,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:48,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:49,457 INFO L225 Difference]: With dead ends: 61413 [2022-03-03 18:43:49,457 INFO L226 Difference]: Without dead ends: 59310 [2022-03-03 18:43:49,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:49,457 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 332 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:49,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 293 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 18:43:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59310 states. [2022-03-03 18:43:50,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59310 to 24484. [2022-03-03 18:43:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.592860352081035) internal successors, (136930), 24483 states have internal predecessors, (136930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:50,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136930 transitions. [2022-03-03 18:43:50,729 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136930 transitions. Word has length 33 [2022-03-03 18:43:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:50,729 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136930 transitions. [2022-03-03 18:43:50,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136930 transitions. [2022-03-03 18:43:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:50,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:50,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:50,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 18:43:50,794 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -502226221, now seen corresponding path program 55 times [2022-03-03 18:43:50,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:50,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178851286] [2022-03-03 18:43:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:51,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:51,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178851286] [2022-03-03 18:43:51,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178851286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:51,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:51,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:51,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673366298] [2022-03-03 18:43:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:51,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:51,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:51,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:51,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:51,015 INFO L87 Difference]: Start difference. First operand 24484 states and 136930 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:52,453 INFO L93 Difference]: Finished difference Result 61879 states and 330809 transitions. [2022-03-03 18:43:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:52,813 INFO L225 Difference]: With dead ends: 61879 [2022-03-03 18:43:52,813 INFO L226 Difference]: Without dead ends: 60064 [2022-03-03 18:43:52,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:52,814 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 406 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:52,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 259 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 18:43:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60064 states. [2022-03-03 18:43:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60064 to 24808. [2022-03-03 18:43:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.5851171040432135) internal successors, (138550), 24807 states have internal predecessors, (138550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138550 transitions. [2022-03-03 18:43:54,479 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138550 transitions. Word has length 33 [2022-03-03 18:43:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:54,479 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138550 transitions. [2022-03-03 18:43:54,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:54,479 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138550 transitions. [2022-03-03 18:43:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:54,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:54,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:54,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 18:43:54,551 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:54,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:54,551 INFO L85 PathProgramCache]: Analyzing trace with hash -29265027, now seen corresponding path program 56 times [2022-03-03 18:43:54,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:54,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936830945] [2022-03-03 18:43:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:54,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:54,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:54,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936830945] [2022-03-03 18:43:54,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936830945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:54,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:54,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:54,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896405340] [2022-03-03 18:43:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:54,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:54,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:54,772 INFO L87 Difference]: Start difference. First operand 24808 states and 138550 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:55,845 INFO L93 Difference]: Finished difference Result 62087 states and 331753 transitions. [2022-03-03 18:43:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:55,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:56,173 INFO L225 Difference]: With dead ends: 62087 [2022-03-03 18:43:56,173 INFO L226 Difference]: Without dead ends: 59848 [2022-03-03 18:43:56,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:56,174 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 369 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:56,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 278 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:43:56,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59848 states. [2022-03-03 18:43:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59848 to 24592. [2022-03-03 18:43:57,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.590256597942337) internal successors, (137470), 24591 states have internal predecessors, (137470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137470 transitions. [2022-03-03 18:43:57,751 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137470 transitions. Word has length 33 [2022-03-03 18:43:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:43:57,752 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137470 transitions. [2022-03-03 18:43:57,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137470 transitions. [2022-03-03 18:43:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:43:57,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:43:57,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:43:57,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 18:43:57,818 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:43:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:43:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash 267545299, now seen corresponding path program 57 times [2022-03-03 18:43:57,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:43:57,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268115499] [2022-03-03 18:43:57,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:43:57,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:43:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:43:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:43:58,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:43:58,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268115499] [2022-03-03 18:43:58,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268115499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:43:58,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:43:58,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:43:58,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060919242] [2022-03-03 18:43:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:43:58,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:43:58,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:43:58,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:43:58,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:43:58,036 INFO L87 Difference]: Start difference. First operand 24592 states and 137470 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:43:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:43:59,191 INFO L93 Difference]: Finished difference Result 61921 states and 330862 transitions. [2022-03-03 18:43:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:43:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:43:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:43:59,923 INFO L225 Difference]: With dead ends: 61921 [2022-03-03 18:43:59,923 INFO L226 Difference]: Without dead ends: 60106 [2022-03-03 18:43:59,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:43:59,924 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 358 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:43:59,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 325 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:00,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60106 states. [2022-03-03 18:44:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60106 to 24812. [2022-03-03 18:44:01,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24812 states, 24811 states have (on average 5.5803474265446775) internal successors, (138454), 24811 states have internal predecessors, (138454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24812 states to 24812 states and 138454 transitions. [2022-03-03 18:44:01,570 INFO L78 Accepts]: Start accepts. Automaton has 24812 states and 138454 transitions. Word has length 33 [2022-03-03 18:44:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:01,570 INFO L470 AbstractCegarLoop]: Abstraction has 24812 states and 138454 transitions. [2022-03-03 18:44:01,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24812 states and 138454 transitions. [2022-03-03 18:44:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:01,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:01,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:01,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 18:44:01,661 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:01,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1378994323, now seen corresponding path program 58 times [2022-03-03 18:44:01,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:01,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700278019] [2022-03-03 18:44:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:01,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:01,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:01,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700278019] [2022-03-03 18:44:01,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700278019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:01,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:01,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:01,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317786165] [2022-03-03 18:44:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:01,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:01,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:01,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:01,884 INFO L87 Difference]: Start difference. First operand 24812 states and 138454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:03,011 INFO L93 Difference]: Finished difference Result 62167 states and 331947 transitions. [2022-03-03 18:44:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:03,362 INFO L225 Difference]: With dead ends: 62167 [2022-03-03 18:44:03,362 INFO L226 Difference]: Without dead ends: 59886 [2022-03-03 18:44:03,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:03,362 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 382 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:03,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 271 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:03,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59886 states. [2022-03-03 18:44:04,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59886 to 24592. [2022-03-03 18:44:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.585864747265259) internal successors, (137362), 24591 states have internal predecessors, (137362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137362 transitions. [2022-03-03 18:44:05,032 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137362 transitions. Word has length 33 [2022-03-03 18:44:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:05,033 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137362 transitions. [2022-03-03 18:44:05,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137362 transitions. [2022-03-03 18:44:05,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:05,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:05,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:05,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 18:44:05,114 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1046792219, now seen corresponding path program 59 times [2022-03-03 18:44:05,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:05,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132408611] [2022-03-03 18:44:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:05,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:05,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:05,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132408611] [2022-03-03 18:44:05,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132408611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:05,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:05,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:05,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302210101] [2022-03-03 18:44:05,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:05,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:05,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:05,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:05,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:05,336 INFO L87 Difference]: Start difference. First operand 24592 states and 137362 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:06,378 INFO L93 Difference]: Finished difference Result 62441 states and 333706 transitions. [2022-03-03 18:44:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:06,974 INFO L225 Difference]: With dead ends: 62441 [2022-03-03 18:44:06,974 INFO L226 Difference]: Without dead ends: 60418 [2022-03-03 18:44:06,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:06,974 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 376 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:06,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 274 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60418 states. [2022-03-03 18:44:08,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60418 to 24916. [2022-03-03 18:44:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.573911298414609) internal successors, (138874), 24915 states have internal predecessors, (138874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 138874 transitions. [2022-03-03 18:44:08,296 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 138874 transitions. Word has length 33 [2022-03-03 18:44:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:08,296 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 138874 transitions. [2022-03-03 18:44:08,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 138874 transitions. [2022-03-03 18:44:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:08,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:08,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:08,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 18:44:08,699 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:08,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:08,700 INFO L85 PathProgramCache]: Analyzing trace with hash -648173571, now seen corresponding path program 60 times [2022-03-03 18:44:08,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:08,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026312915] [2022-03-03 18:44:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:08,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:08,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:08,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026312915] [2022-03-03 18:44:08,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026312915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:08,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:08,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:08,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495496108] [2022-03-03 18:44:08,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:08,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:08,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:08,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:08,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:08,958 INFO L87 Difference]: Start difference. First operand 24916 states and 138874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:10,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:10,123 INFO L93 Difference]: Finished difference Result 62479 states and 333527 transitions. [2022-03-03 18:44:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:10,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:10,889 INFO L225 Difference]: With dead ends: 62479 [2022-03-03 18:44:10,889 INFO L226 Difference]: Without dead ends: 59986 [2022-03-03 18:44:10,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:10,890 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 367 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:10,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 278 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:11,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59986 states. [2022-03-03 18:44:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59986 to 24484. [2022-03-03 18:44:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.591389944042805) internal successors, (136894), 24483 states have internal predecessors, (136894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136894 transitions. [2022-03-03 18:44:12,778 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136894 transitions. Word has length 33 [2022-03-03 18:44:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:12,778 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136894 transitions. [2022-03-03 18:44:12,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136894 transitions. [2022-03-03 18:44:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:13,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:13,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:13,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 18:44:13,232 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -114221259, now seen corresponding path program 61 times [2022-03-03 18:44:13,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:13,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755130055] [2022-03-03 18:44:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:13,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:13,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755130055] [2022-03-03 18:44:13,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755130055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:13,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:13,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:13,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749918191] [2022-03-03 18:44:13,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:13,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:13,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:13,516 INFO L87 Difference]: Start difference. First operand 24484 states and 136894 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:14,752 INFO L93 Difference]: Finished difference Result 61179 states and 326753 transitions. [2022-03-03 18:44:14,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:14,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:14,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:15,094 INFO L225 Difference]: With dead ends: 61179 [2022-03-03 18:44:15,094 INFO L226 Difference]: Without dead ends: 59364 [2022-03-03 18:44:15,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:15,095 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 360 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:15,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 307 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59364 states. [2022-03-03 18:44:16,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59364 to 24700. [2022-03-03 18:44:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 24699 states have (on average 5.584760516620106) internal successors, (137938), 24699 states have internal predecessors, (137938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:16,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 137938 transitions. [2022-03-03 18:44:16,711 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 137938 transitions. Word has length 33 [2022-03-03 18:44:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:16,711 INFO L470 AbstractCegarLoop]: Abstraction has 24700 states and 137938 transitions. [2022-03-03 18:44:16,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 137938 transitions. [2022-03-03 18:44:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:16,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:16,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:16,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 18:44:16,792 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:16,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:16,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2144536671, now seen corresponding path program 62 times [2022-03-03 18:44:16,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:16,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796428871] [2022-03-03 18:44:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:17,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:17,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796428871] [2022-03-03 18:44:17,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796428871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:17,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:17,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:17,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430491203] [2022-03-03 18:44:17,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:17,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:17,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:17,022 INFO L87 Difference]: Start difference. First operand 24700 states and 137938 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:18,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:18,214 INFO L93 Difference]: Finished difference Result 61179 states and 326609 transitions. [2022-03-03 18:44:18,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:18,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:18,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:18,809 INFO L225 Difference]: With dead ends: 61179 [2022-03-03 18:44:18,809 INFO L226 Difference]: Without dead ends: 59220 [2022-03-03 18:44:18,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:18,810 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 351 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:18,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 306 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59220 states. [2022-03-03 18:44:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59220 to 24556. [2022-03-03 18:44:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.589167175727957) internal successors, (137242), 24555 states have internal predecessors, (137242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137242 transitions. [2022-03-03 18:44:20,207 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137242 transitions. Word has length 33 [2022-03-03 18:44:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:20,207 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137242 transitions. [2022-03-03 18:44:20,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137242 transitions. [2022-03-03 18:44:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:20,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:20,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:20,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 18:44:20,279 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1935256685, now seen corresponding path program 63 times [2022-03-03 18:44:20,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:20,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946655354] [2022-03-03 18:44:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:20,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:20,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946655354] [2022-03-03 18:44:20,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946655354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:20,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:20,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:20,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632917374] [2022-03-03 18:44:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:20,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:20,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:20,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:20,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:20,803 INFO L87 Difference]: Start difference. First operand 24556 states and 137242 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:22,064 INFO L93 Difference]: Finished difference Result 61501 states and 328422 transitions. [2022-03-03 18:44:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:22,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:22,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:22,450 INFO L225 Difference]: With dead ends: 61501 [2022-03-03 18:44:22,450 INFO L226 Difference]: Without dead ends: 59686 [2022-03-03 18:44:22,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:22,451 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:22,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 296 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:22,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59686 states. [2022-03-03 18:44:23,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59686 to 24776. [2022-03-03 18:44:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24776 states, 24775 states have (on average 5.57925327951564) internal successors, (138226), 24775 states have internal predecessors, (138226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 138226 transitions. [2022-03-03 18:44:24,137 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 138226 transitions. Word has length 33 [2022-03-03 18:44:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:24,137 INFO L470 AbstractCegarLoop]: Abstraction has 24776 states and 138226 transitions. [2022-03-03 18:44:24,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 138226 transitions. [2022-03-03 18:44:24,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:24,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:24,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:24,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 18:44:24,215 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:24,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash 898092277, now seen corresponding path program 64 times [2022-03-03 18:44:24,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:24,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138618193] [2022-03-03 18:44:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:24,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:24,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:24,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138618193] [2022-03-03 18:44:24,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138618193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:24,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:24,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:24,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568737987] [2022-03-03 18:44:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:24,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:24,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:24,436 INFO L87 Difference]: Start difference. First operand 24776 states and 138226 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:25,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:25,614 INFO L93 Difference]: Finished difference Result 61747 states and 329507 transitions. [2022-03-03 18:44:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:25,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:25,913 INFO L225 Difference]: With dead ends: 61747 [2022-03-03 18:44:25,913 INFO L226 Difference]: Without dead ends: 59466 [2022-03-03 18:44:25,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:25,914 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 334 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:25,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 388 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59466 states. [2022-03-03 18:44:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59466 to 24556. [2022-03-03 18:44:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 5.586234982691916) internal successors, (137170), 24555 states have internal predecessors, (137170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 137170 transitions. [2022-03-03 18:44:27,469 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 137170 transitions. Word has length 33 [2022-03-03 18:44:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:27,469 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 137170 transitions. [2022-03-03 18:44:27,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:27,469 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 137170 transitions. [2022-03-03 18:44:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:27,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:27,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:27,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 18:44:27,530 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash 363048865, now seen corresponding path program 65 times [2022-03-03 18:44:27,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:27,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304331394] [2022-03-03 18:44:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:27,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:27,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304331394] [2022-03-03 18:44:27,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304331394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:27,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:27,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:27,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732758953] [2022-03-03 18:44:27,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:27,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:27,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:27,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:27,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:27,761 INFO L87 Difference]: Start difference. First operand 24556 states and 137170 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:28,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:28,838 INFO L93 Difference]: Finished difference Result 61501 states and 328350 transitions. [2022-03-03 18:44:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:29,558 INFO L225 Difference]: With dead ends: 61501 [2022-03-03 18:44:29,558 INFO L226 Difference]: Without dead ends: 59686 [2022-03-03 18:44:29,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:29,559 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 349 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:29,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 284 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:29,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59686 states. [2022-03-03 18:44:30,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59686 to 24776. [2022-03-03 18:44:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24776 states, 24775 states have (on average 5.576347124117054) internal successors, (138154), 24775 states have internal predecessors, (138154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 138154 transitions. [2022-03-03 18:44:31,294 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 138154 transitions. Word has length 33 [2022-03-03 18:44:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:31,294 INFO L470 AbstractCegarLoop]: Abstraction has 24776 states and 138154 transitions. [2022-03-03 18:44:31,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 138154 transitions. [2022-03-03 18:44:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:31,390 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:31,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:31,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 18:44:31,390 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1292475521, now seen corresponding path program 66 times [2022-03-03 18:44:31,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:31,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322938317] [2022-03-03 18:44:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:31,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:31,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322938317] [2022-03-03 18:44:31,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322938317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:31,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:31,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:31,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732816631] [2022-03-03 18:44:31,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:31,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:31,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:31,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:31,609 INFO L87 Difference]: Start difference. First operand 24776 states and 138154 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:32,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:32,720 INFO L93 Difference]: Finished difference Result 61747 states and 329435 transitions. [2022-03-03 18:44:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:33,030 INFO L225 Difference]: With dead ends: 61747 [2022-03-03 18:44:33,030 INFO L226 Difference]: Without dead ends: 59394 [2022-03-03 18:44:33,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:33,030 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 321 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:33,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 332 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59394 states. [2022-03-03 18:44:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59394 to 24484. [2022-03-03 18:44:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 5.589919536004575) internal successors, (136858), 24483 states have internal predecessors, (136858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 136858 transitions. [2022-03-03 18:44:34,597 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 136858 transitions. Word has length 33 [2022-03-03 18:44:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 136858 transitions. [2022-03-03 18:44:34,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 136858 transitions. [2022-03-03 18:44:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:34,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:34,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:34,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 18:44:34,654 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:34,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:34,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1042748829, now seen corresponding path program 67 times [2022-03-03 18:44:34,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:34,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087221699] [2022-03-03 18:44:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:34,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:34,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087221699] [2022-03-03 18:44:34,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087221699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:34,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:34,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:34,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527100725] [2022-03-03 18:44:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:34,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:34,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:34,880 INFO L87 Difference]: Start difference. First operand 24484 states and 136858 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:35,913 INFO L93 Difference]: Finished difference Result 62087 states and 331897 transitions. [2022-03-03 18:44:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:35,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:35,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:36,534 INFO L225 Difference]: With dead ends: 62087 [2022-03-03 18:44:36,534 INFO L226 Difference]: Without dead ends: 60064 [2022-03-03 18:44:36,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:36,535 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 391 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:36,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 268 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60064 states. [2022-03-03 18:44:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60064 to 24808. [2022-03-03 18:44:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.582214697464425) internal successors, (138478), 24807 states have internal predecessors, (138478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138478 transitions. [2022-03-03 18:44:37,901 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138478 transitions. Word has length 33 [2022-03-03 18:44:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:37,901 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138478 transitions. [2022-03-03 18:44:37,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138478 transitions. [2022-03-03 18:44:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:38,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:38,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:38,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 18:44:38,335 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1208881473, now seen corresponding path program 68 times [2022-03-03 18:44:38,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:38,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186752261] [2022-03-03 18:44:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:38,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:38,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186752261] [2022-03-03 18:44:38,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186752261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:38,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:38,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:38,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556230571] [2022-03-03 18:44:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:38,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:38,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:38,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:38,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:38,583 INFO L87 Difference]: Start difference. First operand 24808 states and 138478 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:39,885 INFO L93 Difference]: Finished difference Result 61879 states and 330521 transitions. [2022-03-03 18:44:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:40,577 INFO L225 Difference]: With dead ends: 61879 [2022-03-03 18:44:40,578 INFO L226 Difference]: Without dead ends: 59848 [2022-03-03 18:44:40,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:40,578 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 375 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:40,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 336 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 18:44:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59848 states. [2022-03-03 18:44:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59848 to 24592. [2022-03-03 18:44:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.587328697490952) internal successors, (137398), 24591 states have internal predecessors, (137398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137398 transitions. [2022-03-03 18:44:42,315 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137398 transitions. Word has length 33 [2022-03-03 18:44:42,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:42,315 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137398 transitions. [2022-03-03 18:44:42,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137398 transitions. [2022-03-03 18:44:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:42,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:42,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:42,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 18:44:42,780 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:42,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:42,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1431183041, now seen corresponding path program 69 times [2022-03-03 18:44:42,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:42,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426908182] [2022-03-03 18:44:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:42,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:43,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:43,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426908182] [2022-03-03 18:44:43,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426908182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:43,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:43,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:43,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979398161] [2022-03-03 18:44:43,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:43,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:43,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:43,004 INFO L87 Difference]: Start difference. First operand 24592 states and 137398 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:44,174 INFO L93 Difference]: Finished difference Result 62441 states and 333742 transitions. [2022-03-03 18:44:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:44,503 INFO L225 Difference]: With dead ends: 62441 [2022-03-03 18:44:44,503 INFO L226 Difference]: Without dead ends: 60418 [2022-03-03 18:44:44,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:44,504 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 359 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:44,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 269 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60418 states. [2022-03-03 18:44:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60418 to 24916. [2022-03-03 18:44:46,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.575356211117801) internal successors, (138910), 24915 states have internal predecessors, (138910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 138910 transitions. [2022-03-03 18:44:46,200 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 138910 transitions. Word has length 33 [2022-03-03 18:44:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:46,200 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 138910 transitions. [2022-03-03 18:44:46,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 138910 transitions. [2022-03-03 18:44:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:46,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:46,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:46,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 18:44:46,268 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:46,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2146216255, now seen corresponding path program 70 times [2022-03-03 18:44:46,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:46,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903096819] [2022-03-03 18:44:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:46,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:46,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903096819] [2022-03-03 18:44:46,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903096819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:46,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:46,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:46,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758085462] [2022-03-03 18:44:46,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:46,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:46,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:46,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:46,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:46,483 INFO L87 Difference]: Start difference. First operand 24916 states and 138910 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:47,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:47,487 INFO L93 Difference]: Finished difference Result 62479 states and 333563 transitions. [2022-03-03 18:44:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:47,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:48,044 INFO L225 Difference]: With dead ends: 62479 [2022-03-03 18:44:48,044 INFO L226 Difference]: Without dead ends: 60094 [2022-03-03 18:44:48,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:48,045 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 372 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:48,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 269 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60094 states. [2022-03-03 18:44:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60094 to 24592. [2022-03-03 18:44:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24592 states, 24591 states have (on average 5.582936846813875) internal successors, (137290), 24591 states have internal predecessors, (137290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24592 states to 24592 states and 137290 transitions. [2022-03-03 18:44:49,278 INFO L78 Accepts]: Start accepts. Automaton has 24592 states and 137290 transitions. Word has length 33 [2022-03-03 18:44:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:49,279 INFO L470 AbstractCegarLoop]: Abstraction has 24592 states and 137290 transitions. [2022-03-03 18:44:49,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 24592 states and 137290 transitions. [2022-03-03 18:44:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:49,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:49,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:49,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 18:44:49,620 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:49,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1881436641, now seen corresponding path program 71 times [2022-03-03 18:44:49,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:49,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628960426] [2022-03-03 18:44:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:49,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:49,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628960426] [2022-03-03 18:44:49,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628960426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:49,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:49,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:49,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177345489] [2022-03-03 18:44:49,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:49,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:49,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:49,907 INFO L87 Difference]: Start difference. First operand 24592 states and 137290 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:51,080 INFO L93 Difference]: Finished difference Result 61921 states and 330682 transitions. [2022-03-03 18:44:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:51,081 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:51,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:51,412 INFO L225 Difference]: With dead ends: 61921 [2022-03-03 18:44:51,412 INFO L226 Difference]: Without dead ends: 60106 [2022-03-03 18:44:51,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:51,412 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 332 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:51,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 308 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:44:51,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60106 states. [2022-03-03 18:44:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60106 to 24812. [2022-03-03 18:44:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24812 states, 24811 states have (on average 5.573092579904075) internal successors, (138274), 24811 states have internal predecessors, (138274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24812 states to 24812 states and 138274 transitions. [2022-03-03 18:44:52,985 INFO L78 Accepts]: Start accepts. Automaton has 24812 states and 138274 transitions. Word has length 33 [2022-03-03 18:44:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:52,985 INFO L470 AbstractCegarLoop]: Abstraction has 24812 states and 138274 transitions. [2022-03-03 18:44:52,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 24812 states and 138274 transitions. [2022-03-03 18:44:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:53,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:53,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:53,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 18:44:53,049 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1663085055, now seen corresponding path program 72 times [2022-03-03 18:44:53,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:53,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270451188] [2022-03-03 18:44:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:53,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:53,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:53,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270451188] [2022-03-03 18:44:53,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270451188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:53,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:53,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:53,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054579743] [2022-03-03 18:44:53,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:53,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:53,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:53,268 INFO L87 Difference]: Start difference. First operand 24812 states and 138274 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:54,370 INFO L93 Difference]: Finished difference Result 62167 states and 331767 transitions. [2022-03-03 18:44:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:54,944 INFO L225 Difference]: With dead ends: 62167 [2022-03-03 18:44:54,945 INFO L226 Difference]: Without dead ends: 59742 [2022-03-03 18:44:54,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:54,945 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:54,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 282 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:44:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59742 states. [2022-03-03 18:44:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59742 to 24448. [2022-03-03 18:44:56,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.59250623798421) internal successors, (136720), 24447 states have internal predecessors, (136720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136720 transitions. [2022-03-03 18:44:56,265 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136720 transitions. Word has length 33 [2022-03-03 18:44:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:56,265 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136720 transitions. [2022-03-03 18:44:56,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136720 transitions. [2022-03-03 18:44:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:44:56,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:44:56,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:44:56,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 18:44:56,337 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:44:56,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:44:56,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1918630999, now seen corresponding path program 73 times [2022-03-03 18:44:56,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:44:56,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353376722] [2022-03-03 18:44:56,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:44:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:44:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:44:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:44:56,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:44:56,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353376722] [2022-03-03 18:44:56,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353376722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:44:56,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:44:56,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:44:56,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178494046] [2022-03-03 18:44:56,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:44:56,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:44:56,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:44:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:44:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:44:56,550 INFO L87 Difference]: Start difference. First operand 24448 states and 136720 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:57,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:44:57,967 INFO L93 Difference]: Finished difference Result 62114 states and 331264 transitions. [2022-03-03 18:44:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:44:57,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:44:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:44:58,318 INFO L225 Difference]: With dead ends: 62114 [2022-03-03 18:44:58,318 INFO L226 Difference]: Without dead ends: 60299 [2022-03-03 18:44:58,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:44:58,318 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 367 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:44:58,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 279 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 18:44:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60299 states. [2022-03-03 18:44:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60299 to 24764. [2022-03-03 18:44:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24764 states, 24763 states have (on average 5.5867221257521305) internal successors, (138344), 24763 states have internal predecessors, (138344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24764 states to 24764 states and 138344 transitions. [2022-03-03 18:44:59,943 INFO L78 Accepts]: Start accepts. Automaton has 24764 states and 138344 transitions. Word has length 33 [2022-03-03 18:44:59,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:44:59,943 INFO L470 AbstractCegarLoop]: Abstraction has 24764 states and 138344 transitions. [2022-03-03 18:44:59,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:44:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 24764 states and 138344 transitions. [2022-03-03 18:45:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:00,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:00,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:00,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 18:45:00,010 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:00,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:00,011 INFO L85 PathProgramCache]: Analyzing trace with hash -111684413, now seen corresponding path program 74 times [2022-03-03 18:45:00,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:00,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592629809] [2022-03-03 18:45:00,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:00,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:00,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:00,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592629809] [2022-03-03 18:45:00,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592629809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:00,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:00,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:00,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277052667] [2022-03-03 18:45:00,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:00,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:00,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:00,225 INFO L87 Difference]: Start difference. First operand 24764 states and 138344 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:01,283 INFO L93 Difference]: Finished difference Result 62114 states and 331120 transitions. [2022-03-03 18:45:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:01,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:01,595 INFO L225 Difference]: With dead ends: 62114 [2022-03-03 18:45:01,596 INFO L226 Difference]: Without dead ends: 60155 [2022-03-03 18:45:01,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:01,596 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 364 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:01,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 283 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:45:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60155 states. [2022-03-03 18:45:03,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60155 to 24620. [2022-03-03 18:45:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 24619 states have (on average 5.591128802957066) internal successors, (137648), 24619 states have internal predecessors, (137648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 137648 transitions. [2022-03-03 18:45:03,374 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 137648 transitions. Word has length 33 [2022-03-03 18:45:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:03,374 INFO L470 AbstractCegarLoop]: Abstraction has 24620 states and 137648 transitions. [2022-03-03 18:45:03,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 137648 transitions. [2022-03-03 18:45:03,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:03,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:03,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:03,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 18:45:03,451 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:03,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:03,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1366878261, now seen corresponding path program 75 times [2022-03-03 18:45:03,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:03,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734559779] [2022-03-03 18:45:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:03,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:03,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:03,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734559779] [2022-03-03 18:45:03,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734559779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:03,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:03,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:03,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840512076] [2022-03-03 18:45:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:03,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:03,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:03,668 INFO L87 Difference]: Start difference. First operand 24620 states and 137648 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:04,798 INFO L93 Difference]: Finished difference Result 62629 states and 333831 transitions. [2022-03-03 18:45:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:04,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:04,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:05,516 INFO L225 Difference]: With dead ends: 62629 [2022-03-03 18:45:05,516 INFO L226 Difference]: Without dead ends: 60814 [2022-03-03 18:45:05,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:05,516 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 347 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:05,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 298 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:05,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60814 states. [2022-03-03 18:45:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60814 to 24904. [2022-03-03 18:45:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24904 states, 24903 states have (on average 5.579729349877525) internal successors, (138952), 24903 states have internal predecessors, (138952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24904 states to 24904 states and 138952 transitions. [2022-03-03 18:45:07,204 INFO L78 Accepts]: Start accepts. Automaton has 24904 states and 138952 transitions. Word has length 33 [2022-03-03 18:45:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:07,204 INFO L470 AbstractCegarLoop]: Abstraction has 24904 states and 138952 transitions. [2022-03-03 18:45:07,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 24904 states and 138952 transitions. [2022-03-03 18:45:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:07,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:07,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:07,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 18:45:07,275 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:07,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1199561239, now seen corresponding path program 76 times [2022-03-03 18:45:07,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:07,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485810208] [2022-03-03 18:45:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:07,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:07,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:07,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485810208] [2022-03-03 18:45:07,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485810208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:07,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:07,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:07,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529496925] [2022-03-03 18:45:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:07,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:07,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:07,489 INFO L87 Difference]: Start difference. First operand 24904 states and 138952 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:08,741 INFO L93 Difference]: Finished difference Result 63004 states and 335494 transitions. [2022-03-03 18:45:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:08,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:09,318 INFO L225 Difference]: With dead ends: 63004 [2022-03-03 18:45:09,319 INFO L226 Difference]: Without dead ends: 60530 [2022-03-03 18:45:09,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:09,319 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 383 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:09,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 281 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60530 states. [2022-03-03 18:45:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60530 to 24620. [2022-03-03 18:45:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 24619 states have (on average 5.586904423412811) internal successors, (137544), 24619 states have internal predecessors, (137544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 137544 transitions. [2022-03-03 18:45:10,979 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 137544 transitions. Word has length 33 [2022-03-03 18:45:10,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:10,979 INFO L470 AbstractCegarLoop]: Abstraction has 24620 states and 137544 transitions. [2022-03-03 18:45:10,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 137544 transitions. [2022-03-03 18:45:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:11,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:11,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:11,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 18:45:11,045 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 658087107, now seen corresponding path program 77 times [2022-03-03 18:45:11,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:11,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833998825] [2022-03-03 18:45:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:11,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:11,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833998825] [2022-03-03 18:45:11,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833998825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:11,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:11,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:11,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278376960] [2022-03-03 18:45:11,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:11,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:11,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:11,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:11,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:11,260 INFO L87 Difference]: Start difference. First operand 24620 states and 137544 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:12,440 INFO L93 Difference]: Finished difference Result 62629 states and 333727 transitions. [2022-03-03 18:45:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:12,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:12,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:13,029 INFO L225 Difference]: With dead ends: 62629 [2022-03-03 18:45:13,029 INFO L226 Difference]: Without dead ends: 60814 [2022-03-03 18:45:13,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:13,030 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 364 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:13,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 338 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60814 states. [2022-03-03 18:45:14,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60814 to 24904. [2022-03-03 18:45:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24904 states, 24903 states have (on average 5.575553146207285) internal successors, (138848), 24903 states have internal predecessors, (138848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24904 states to 24904 states and 138848 transitions. [2022-03-03 18:45:14,312 INFO L78 Accepts]: Start accepts. Automaton has 24904 states and 138848 transitions. Word has length 33 [2022-03-03 18:45:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:14,312 INFO L470 AbstractCegarLoop]: Abstraction has 24904 states and 138848 transitions. [2022-03-03 18:45:14,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 24904 states and 138848 transitions. [2022-03-03 18:45:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:14,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:14,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:14,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 18:45:14,663 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1648629727, now seen corresponding path program 78 times [2022-03-03 18:45:14,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:14,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108423256] [2022-03-03 18:45:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:14,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:14,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108423256] [2022-03-03 18:45:14,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108423256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:14,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:14,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:14,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321876572] [2022-03-03 18:45:14,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:14,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:14,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:14,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:14,949 INFO L87 Difference]: Start difference. First operand 24904 states and 138848 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:16,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:16,093 INFO L93 Difference]: Finished difference Result 63004 states and 335390 transitions. [2022-03-03 18:45:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:16,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:16,432 INFO L225 Difference]: With dead ends: 63004 [2022-03-03 18:45:16,433 INFO L226 Difference]: Without dead ends: 60426 [2022-03-03 18:45:16,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:16,433 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 330 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:16,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 290 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:45:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60426 states. [2022-03-03 18:45:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60426 to 24516. [2022-03-03 18:45:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.591352233326535) internal successors, (137072), 24515 states have internal predecessors, (137072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 137072 transitions. [2022-03-03 18:45:17,996 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 137072 transitions. Word has length 33 [2022-03-03 18:45:17,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:17,996 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 137072 transitions. [2022-03-03 18:45:17,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 137072 transitions. [2022-03-03 18:45:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:18,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:18,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:18,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 18:45:18,057 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash -104430539, now seen corresponding path program 79 times [2022-03-03 18:45:18,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:18,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414088510] [2022-03-03 18:45:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:18,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:18,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:18,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414088510] [2022-03-03 18:45:18,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414088510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:18,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:18,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:18,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7458466] [2022-03-03 18:45:18,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:18,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:18,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:18,293 INFO L87 Difference]: Start difference. First operand 24516 states and 137072 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:19,370 INFO L93 Difference]: Finished difference Result 61825 states and 329818 transitions. [2022-03-03 18:45:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:19,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:19,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:19,937 INFO L225 Difference]: With dead ends: 61825 [2022-03-03 18:45:19,937 INFO L226 Difference]: Without dead ends: 60010 [2022-03-03 18:45:19,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:19,938 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 368 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:19,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 339 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:20,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60010 states. [2022-03-03 18:45:21,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60010 to 24732. [2022-03-03 18:45:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24732 states, 24731 states have (on average 5.584731713234402) internal successors, (138116), 24731 states have internal predecessors, (138116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24732 states to 24732 states and 138116 transitions. [2022-03-03 18:45:21,200 INFO L78 Accepts]: Start accepts. Automaton has 24732 states and 138116 transitions. Word has length 33 [2022-03-03 18:45:21,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:21,201 INFO L470 AbstractCegarLoop]: Abstraction has 24732 states and 138116 transitions. [2022-03-03 18:45:21,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 24732 states and 138116 transitions. [2022-03-03 18:45:21,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:21,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:21,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:21,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 18:45:21,270 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:21,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2134745951, now seen corresponding path program 80 times [2022-03-03 18:45:21,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:21,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132136723] [2022-03-03 18:45:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:21,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:21,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:21,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132136723] [2022-03-03 18:45:21,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132136723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:21,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:21,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:21,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439704158] [2022-03-03 18:45:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:21,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:21,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:21,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:21,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:21,479 INFO L87 Difference]: Start difference. First operand 24732 states and 138116 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:22,996 INFO L93 Difference]: Finished difference Result 61825 states and 329674 transitions. [2022-03-03 18:45:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:22,996 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:23,390 INFO L225 Difference]: With dead ends: 61825 [2022-03-03 18:45:23,390 INFO L226 Difference]: Without dead ends: 59866 [2022-03-03 18:45:23,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:23,390 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 389 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:23,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 300 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 18:45:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59866 states. [2022-03-03 18:45:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59866 to 24588. [2022-03-03 18:45:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24588 states, 24587 states have (on average 5.589132468377598) internal successors, (137420), 24587 states have internal predecessors, (137420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24588 states to 24588 states and 137420 transitions. [2022-03-03 18:45:25,219 INFO L78 Accepts]: Start accepts. Automaton has 24588 states and 137420 transitions. Word has length 33 [2022-03-03 18:45:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:25,219 INFO L470 AbstractCegarLoop]: Abstraction has 24588 states and 137420 transitions. [2022-03-03 18:45:25,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 24588 states and 137420 transitions. [2022-03-03 18:45:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:25,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:25,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:25,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 18:45:25,299 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:25,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash -605413195, now seen corresponding path program 81 times [2022-03-03 18:45:25,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:25,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788821160] [2022-03-03 18:45:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:25,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:25,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788821160] [2022-03-03 18:45:25,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788821160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:25,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:25,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:25,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403803746] [2022-03-03 18:45:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:25,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:25,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:25,517 INFO L87 Difference]: Start difference. First operand 24588 states and 137420 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:26,703 INFO L93 Difference]: Finished difference Result 62147 states and 331487 transitions. [2022-03-03 18:45:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:27,073 INFO L225 Difference]: With dead ends: 62147 [2022-03-03 18:45:27,073 INFO L226 Difference]: Without dead ends: 60332 [2022-03-03 18:45:27,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:27,074 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 352 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:27,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 300 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:27,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60332 states. [2022-03-03 18:45:28,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60332 to 24808. [2022-03-03 18:45:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.579231668480671) internal successors, (138404), 24807 states have internal predecessors, (138404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:28,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138404 transitions. [2022-03-03 18:45:28,864 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138404 transitions. Word has length 33 [2022-03-03 18:45:28,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:28,865 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138404 transitions. [2022-03-03 18:45:28,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138404 transitions. [2022-03-03 18:45:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:28,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:28,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:28,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 18:45:28,944 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2067031529, now seen corresponding path program 82 times [2022-03-03 18:45:28,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:28,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492574125] [2022-03-03 18:45:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:28,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:29,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:29,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492574125] [2022-03-03 18:45:29,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492574125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:29,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:29,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:29,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180754331] [2022-03-03 18:45:29,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:29,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:29,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:29,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:29,164 INFO L87 Difference]: Start difference. First operand 24808 states and 138404 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:30,392 INFO L93 Difference]: Finished difference Result 62393 states and 332572 transitions. [2022-03-03 18:45:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:30,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:30,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:31,179 INFO L225 Difference]: With dead ends: 62393 [2022-03-03 18:45:31,179 INFO L226 Difference]: Without dead ends: 60112 [2022-03-03 18:45:31,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:31,181 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 378 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:31,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 286 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:31,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60112 states. [2022-03-03 18:45:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60112 to 24588. [2022-03-03 18:45:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24588 states, 24587 states have (on average 5.586204091593118) internal successors, (137348), 24587 states have internal predecessors, (137348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24588 states to 24588 states and 137348 transitions. [2022-03-03 18:45:32,994 INFO L78 Accepts]: Start accepts. Automaton has 24588 states and 137348 transitions. Word has length 33 [2022-03-03 18:45:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:32,994 INFO L470 AbstractCegarLoop]: Abstraction has 24588 states and 137348 transitions. [2022-03-03 18:45:32,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 24588 states and 137348 transitions. [2022-03-03 18:45:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:33,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:33,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:33,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 18:45:33,086 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:33,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1692892355, now seen corresponding path program 83 times [2022-03-03 18:45:33,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:33,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043909702] [2022-03-03 18:45:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:33,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:33,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:33,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043909702] [2022-03-03 18:45:33,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043909702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:33,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:33,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:33,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296595950] [2022-03-03 18:45:33,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:33,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:33,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:33,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:33,305 INFO L87 Difference]: Start difference. First operand 24588 states and 137348 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:34,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:34,544 INFO L93 Difference]: Finished difference Result 62147 states and 331415 transitions. [2022-03-03 18:45:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:34,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:34,921 INFO L225 Difference]: With dead ends: 62147 [2022-03-03 18:45:34,921 INFO L226 Difference]: Without dead ends: 60332 [2022-03-03 18:45:34,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:34,921 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 335 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:34,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 286 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60332 states. [2022-03-03 18:45:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60332 to 24808. [2022-03-03 18:45:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24807 states have (on average 5.576329261901883) internal successors, (138332), 24807 states have internal predecessors, (138332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:36,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 138332 transitions. [2022-03-03 18:45:36,673 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 138332 transitions. Word has length 33 [2022-03-03 18:45:36,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:36,673 INFO L470 AbstractCegarLoop]: Abstraction has 24808 states and 138332 transitions. [2022-03-03 18:45:36,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:36,673 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 138332 transitions. [2022-03-03 18:45:36,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:36,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:36,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:36,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 18:45:36,751 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:36,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash 37367969, now seen corresponding path program 84 times [2022-03-03 18:45:36,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:36,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774196074] [2022-03-03 18:45:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:36,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:36,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:36,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774196074] [2022-03-03 18:45:36,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774196074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:36,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:36,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:36,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587676256] [2022-03-03 18:45:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:36,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:36,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:36,992 INFO L87 Difference]: Start difference. First operand 24808 states and 138332 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:38,163 INFO L93 Difference]: Finished difference Result 62393 states and 332500 transitions. [2022-03-03 18:45:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:38,949 INFO L225 Difference]: With dead ends: 62393 [2022-03-03 18:45:38,949 INFO L226 Difference]: Without dead ends: 60040 [2022-03-03 18:45:38,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:38,949 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 356 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:38,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 293 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:39,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60040 states. [2022-03-03 18:45:40,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60040 to 24516. [2022-03-03 18:45:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.589883744646135) internal successors, (137036), 24515 states have internal predecessors, (137036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 137036 transitions. [2022-03-03 18:45:40,677 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 137036 transitions. Word has length 33 [2022-03-03 18:45:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:40,677 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 137036 transitions. [2022-03-03 18:45:40,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 137036 transitions. [2022-03-03 18:45:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:40,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:40,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:40,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 18:45:40,752 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -596476653, now seen corresponding path program 85 times [2022-03-03 18:45:40,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:40,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071423851] [2022-03-03 18:45:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:41,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:41,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071423851] [2022-03-03 18:45:41,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071423851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:41,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:41,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:41,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319745856] [2022-03-03 18:45:41,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:41,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:41,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:41,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:41,010 INFO L87 Difference]: Start difference. First operand 24516 states and 137036 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:42,727 INFO L93 Difference]: Finished difference Result 63208 states and 336907 transitions. [2022-03-03 18:45:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:42,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:42,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:43,150 INFO L225 Difference]: With dead ends: 63208 [2022-03-03 18:45:43,150 INFO L226 Difference]: Without dead ends: 61393 [2022-03-03 18:45:43,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:43,150 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 346 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:43,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 318 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61393 states. [2022-03-03 18:45:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61393 to 24974. [2022-03-03 18:45:44,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24974 states, 24973 states have (on average 5.578705001401514) internal successors, (139317), 24973 states have internal predecessors, (139317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24974 states to 24974 states and 139317 transitions. [2022-03-03 18:45:44,991 INFO L78 Accepts]: Start accepts. Automaton has 24974 states and 139317 transitions. Word has length 33 [2022-03-03 18:45:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:44,991 INFO L470 AbstractCegarLoop]: Abstraction has 24974 states and 139317 transitions. [2022-03-03 18:45:44,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 24974 states and 139317 transitions. [2022-03-03 18:45:45,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:45,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:45,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:45,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 18:45:45,073 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:45,073 INFO L85 PathProgramCache]: Analyzing trace with hash -763793675, now seen corresponding path program 86 times [2022-03-03 18:45:45,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:45,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818203037] [2022-03-03 18:45:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:45,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:45,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:45,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818203037] [2022-03-03 18:45:45,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818203037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:45,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:45,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:45,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538555574] [2022-03-03 18:45:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:45,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:45,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:45,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:45,299 INFO L87 Difference]: Start difference. First operand 24974 states and 139317 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:46,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:46,429 INFO L93 Difference]: Finished difference Result 63583 states and 338570 transitions. [2022-03-03 18:45:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:46,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:46,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:46,751 INFO L225 Difference]: With dead ends: 63583 [2022-03-03 18:45:46,751 INFO L226 Difference]: Without dead ends: 61109 [2022-03-03 18:45:46,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:46,752 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 369 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:46,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 268 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:45:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61109 states. [2022-03-03 18:45:48,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61109 to 24690. [2022-03-03 18:45:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.584308801490542) internal successors, (137871), 24689 states have internal predecessors, (137871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137871 transitions. [2022-03-03 18:45:48,347 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137871 transitions. Word has length 33 [2022-03-03 18:45:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:48,347 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137871 transitions. [2022-03-03 18:45:48,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137871 transitions. [2022-03-03 18:45:48,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:48,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:48,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:48,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 18:45:48,414 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1077378699, now seen corresponding path program 87 times [2022-03-03 18:45:48,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:48,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171561389] [2022-03-03 18:45:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:48,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:48,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171561389] [2022-03-03 18:45:48,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171561389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:48,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:48,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:48,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393852426] [2022-03-03 18:45:48,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:48,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:48,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:48,631 INFO L87 Difference]: Start difference. First operand 24690 states and 137871 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:49,808 INFO L93 Difference]: Finished difference Result 63015 states and 335867 transitions. [2022-03-03 18:45:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:49,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:49,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:50,540 INFO L225 Difference]: With dead ends: 63015 [2022-03-03 18:45:50,540 INFO L226 Difference]: Without dead ends: 61200 [2022-03-03 18:45:50,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:50,540 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 394 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:50,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 316 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61200 states. [2022-03-03 18:45:51,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61200 to 24910. [2022-03-03 18:45:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24910 states, 24909 states have (on average 5.574491147777912) internal successors, (138855), 24909 states have internal predecessors, (138855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24910 states to 24910 states and 138855 transitions. [2022-03-03 18:45:52,176 INFO L78 Accepts]: Start accepts. Automaton has 24910 states and 138855 transitions. Word has length 33 [2022-03-03 18:45:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:52,176 INFO L470 AbstractCegarLoop]: Abstraction has 24910 states and 138855 transitions. [2022-03-03 18:45:52,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:52,176 INFO L276 IsEmpty]: Start isEmpty. Operand 24910 states and 138855 transitions. [2022-03-03 18:45:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:52,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:52,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:52,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 18:45:52,248 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash 274531957, now seen corresponding path program 88 times [2022-03-03 18:45:52,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:52,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091204969] [2022-03-03 18:45:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:52,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:52,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091204969] [2022-03-03 18:45:52,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091204969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:52,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:52,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:52,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054768409] [2022-03-03 18:45:52,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:52,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:52,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:52,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:52,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:52,459 INFO L87 Difference]: Start difference. First operand 24910 states and 138855 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:53,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:53,614 INFO L93 Difference]: Finished difference Result 63261 states and 336952 transitions. [2022-03-03 18:45:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:53,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:53,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:53,944 INFO L225 Difference]: With dead ends: 63261 [2022-03-03 18:45:53,944 INFO L226 Difference]: Without dead ends: 60980 [2022-03-03 18:45:53,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:53,945 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 347 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:53,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 356 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60980 states. [2022-03-03 18:45:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60980 to 24690. [2022-03-03 18:45:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.579853375997407) internal successors, (137761), 24689 states have internal predecessors, (137761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137761 transitions. [2022-03-03 18:45:55,542 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137761 transitions. Word has length 33 [2022-03-03 18:45:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:55,542 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137761 transitions. [2022-03-03 18:45:55,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137761 transitions. [2022-03-03 18:45:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:55,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:55,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:55,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 18:45:55,611 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash -924706857, now seen corresponding path program 89 times [2022-03-03 18:45:55,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:55,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927467632] [2022-03-03 18:45:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:55,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:55,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927467632] [2022-03-03 18:45:55,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927467632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:55,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:55,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:55,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012760873] [2022-03-03 18:45:55,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:55,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:55,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:55,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:55,832 INFO L87 Difference]: Start difference. First operand 24690 states and 137761 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:45:56,964 INFO L93 Difference]: Finished difference Result 64016 states and 340813 transitions. [2022-03-03 18:45:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:45:56,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:45:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:45:57,702 INFO L225 Difference]: With dead ends: 64016 [2022-03-03 18:45:57,702 INFO L226 Difference]: Without dead ends: 61826 [2022-03-03 18:45:57,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:45:57,702 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 347 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:45:57,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 281 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:45:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61826 states. [2022-03-03 18:45:58,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61826 to 25161. [2022-03-03 18:45:58,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25161 states, 25160 states have (on average 5.558346581875994) internal successors, (139848), 25160 states have internal predecessors, (139848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25161 states to 25161 states and 139848 transitions. [2022-03-03 18:45:59,352 INFO L78 Accepts]: Start accepts. Automaton has 25161 states and 139848 transitions. Word has length 33 [2022-03-03 18:45:59,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:45:59,353 INFO L470 AbstractCegarLoop]: Abstraction has 25161 states and 139848 transitions. [2022-03-03 18:45:59,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:45:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 25161 states and 139848 transitions. [2022-03-03 18:45:59,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:45:59,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:45:59,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:45:59,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 18:45:59,440 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:45:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:45:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1253089739, now seen corresponding path program 90 times [2022-03-03 18:45:59,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:45:59,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422891393] [2022-03-03 18:45:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:45:59,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:45:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:45:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:45:59,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:45:59,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422891393] [2022-03-03 18:45:59,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422891393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:45:59,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:45:59,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:45:59,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001353536] [2022-03-03 18:45:59,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:45:59,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:45:59,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:45:59,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:45:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:45:59,655 INFO L87 Difference]: Start difference. First operand 25161 states and 139848 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:00,791 INFO L93 Difference]: Finished difference Result 63887 states and 339828 transitions. [2022-03-03 18:46:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:00,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:00,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:01,156 INFO L225 Difference]: With dead ends: 63887 [2022-03-03 18:46:01,156 INFO L226 Difference]: Without dead ends: 61181 [2022-03-03 18:46:01,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:01,157 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:01,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 292 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61181 states. [2022-03-03 18:46:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61181 to 24516. [2022-03-03 18:46:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 5.587109932694269) internal successors, (136968), 24515 states have internal predecessors, (136968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 136968 transitions. [2022-03-03 18:46:02,906 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 136968 transitions. Word has length 33 [2022-03-03 18:46:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:02,906 INFO L470 AbstractCegarLoop]: Abstraction has 24516 states and 136968 transitions. [2022-03-03 18:46:02,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 136968 transitions. [2022-03-03 18:46:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:02,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:02,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 18:46:02,979 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:02,979 INFO L85 PathProgramCache]: Analyzing trace with hash 971134147, now seen corresponding path program 91 times [2022-03-03 18:46:02,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:02,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132740174] [2022-03-03 18:46:02,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:02,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:03,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:03,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132740174] [2022-03-03 18:46:03,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132740174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:03,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:03,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:03,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704487351] [2022-03-03 18:46:03,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:03,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:03,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:03,206 INFO L87 Difference]: Start difference. First operand 24516 states and 136968 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:04,440 INFO L93 Difference]: Finished difference Result 63208 states and 336839 transitions. [2022-03-03 18:46:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:04,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:04,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:05,221 INFO L225 Difference]: With dead ends: 63208 [2022-03-03 18:46:05,222 INFO L226 Difference]: Without dead ends: 61393 [2022-03-03 18:46:05,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:05,222 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 369 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:05,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 313 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61393 states. [2022-03-03 18:46:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61393 to 24974. [2022-03-03 18:46:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24974 states, 24973 states have (on average 5.575982060625475) internal successors, (139249), 24973 states have internal predecessors, (139249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24974 states to 24974 states and 139249 transitions. [2022-03-03 18:46:07,047 INFO L78 Accepts]: Start accepts. Automaton has 24974 states and 139249 transitions. Word has length 33 [2022-03-03 18:46:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:07,047 INFO L470 AbstractCegarLoop]: Abstraction has 24974 states and 139249 transitions. [2022-03-03 18:46:07,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand 24974 states and 139249 transitions. [2022-03-03 18:46:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:07,211 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:07,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:07,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 18:46:07,212 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:07,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:07,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1335582687, now seen corresponding path program 92 times [2022-03-03 18:46:07,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:07,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711583490] [2022-03-03 18:46:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:07,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:07,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:07,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711583490] [2022-03-03 18:46:07,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711583490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:07,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:07,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:07,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407502350] [2022-03-03 18:46:07,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:07,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:07,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:07,447 INFO L87 Difference]: Start difference. First operand 24974 states and 139249 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:08,986 INFO L93 Difference]: Finished difference Result 63583 states and 338502 transitions. [2022-03-03 18:46:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:09,686 INFO L225 Difference]: With dead ends: 63583 [2022-03-03 18:46:09,686 INFO L226 Difference]: Without dead ends: 61109 [2022-03-03 18:46:09,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:09,687 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 328 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:09,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 316 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61109 states. [2022-03-03 18:46:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61109 to 24690. [2022-03-03 18:46:11,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.581554538458422) internal successors, (137803), 24689 states have internal predecessors, (137803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137803 transitions. [2022-03-03 18:46:11,478 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137803 transitions. Word has length 33 [2022-03-03 18:46:11,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:11,478 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137803 transitions. [2022-03-03 18:46:11,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:11,478 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137803 transitions. [2022-03-03 18:46:11,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:11,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:11,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:11,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 18:46:11,557 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 124337185, now seen corresponding path program 93 times [2022-03-03 18:46:11,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:11,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457829898] [2022-03-03 18:46:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:11,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:11,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457829898] [2022-03-03 18:46:11,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457829898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:11,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:11,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:11,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395291114] [2022-03-03 18:46:11,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:11,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:11,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:11,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:11,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:11,778 INFO L87 Difference]: Start difference. First operand 24690 states and 137803 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:12,947 INFO L93 Difference]: Finished difference Result 63015 states and 335799 transitions. [2022-03-03 18:46:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:12,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:12,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:13,618 INFO L225 Difference]: With dead ends: 63015 [2022-03-03 18:46:13,618 INFO L226 Difference]: Without dead ends: 61200 [2022-03-03 18:46:13,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:13,619 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:13,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 315 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:13,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61200 states. [2022-03-03 18:46:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61200 to 24910. [2022-03-03 18:46:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24910 states, 24909 states have (on average 5.571761210807339) internal successors, (138787), 24909 states have internal predecessors, (138787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24910 states to 24910 states and 138787 transitions. [2022-03-03 18:46:14,943 INFO L78 Accepts]: Start accepts. Automaton has 24910 states and 138787 transitions. Word has length 33 [2022-03-03 18:46:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:14,943 INFO L470 AbstractCegarLoop]: Abstraction has 24910 states and 138787 transitions. [2022-03-03 18:46:14,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 24910 states and 138787 transitions. [2022-03-03 18:46:15,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:15,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:15,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:15,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 18:46:15,022 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:15,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:15,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1053423777, now seen corresponding path program 94 times [2022-03-03 18:46:15,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:15,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142522883] [2022-03-03 18:46:15,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:15,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:15,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142522883] [2022-03-03 18:46:15,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142522883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:15,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:15,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:15,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303182915] [2022-03-03 18:46:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:15,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:15,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:15,546 INFO L87 Difference]: Start difference. First operand 24910 states and 138787 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:16,800 INFO L93 Difference]: Finished difference Result 63261 states and 336884 transitions. [2022-03-03 18:46:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:17,201 INFO L225 Difference]: With dead ends: 63261 [2022-03-03 18:46:17,201 INFO L226 Difference]: Without dead ends: 60980 [2022-03-03 18:46:17,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:17,201 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 370 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:17,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 276 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60980 states. [2022-03-03 18:46:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60980 to 24690. [2022-03-03 18:46:18,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24690 states, 24689 states have (on average 5.577099112965288) internal successors, (137693), 24689 states have internal predecessors, (137693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24690 states to 24690 states and 137693 transitions. [2022-03-03 18:46:18,995 INFO L78 Accepts]: Start accepts. Automaton has 24690 states and 137693 transitions. Word has length 33 [2022-03-03 18:46:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:18,995 INFO L470 AbstractCegarLoop]: Abstraction has 24690 states and 137693 transitions. [2022-03-03 18:46:18,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 24690 states and 137693 transitions. [2022-03-03 18:46:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:19,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:19,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:19,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 18:46:19,074 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:19,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1138349183, now seen corresponding path program 95 times [2022-03-03 18:46:19,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:19,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064727527] [2022-03-03 18:46:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:19,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:19,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064727527] [2022-03-03 18:46:19,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064727527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:19,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:19,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:19,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704526273] [2022-03-03 18:46:19,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:19,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:19,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:19,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:19,325 INFO L87 Difference]: Start difference. First operand 24690 states and 137693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:20,445 INFO L93 Difference]: Finished difference Result 64016 states and 340745 transitions. [2022-03-03 18:46:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:20,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:21,070 INFO L225 Difference]: With dead ends: 64016 [2022-03-03 18:46:21,070 INFO L226 Difference]: Without dead ends: 61826 [2022-03-03 18:46:21,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:21,071 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 379 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:21,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 270 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61826 states. [2022-03-03 18:46:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61826 to 25161. [2022-03-03 18:46:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25161 states, 25160 states have (on average 5.5556438791732905) internal successors, (139780), 25160 states have internal predecessors, (139780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25161 states to 25161 states and 139780 transitions. [2022-03-03 18:46:22,514 INFO L78 Accepts]: Start accepts. Automaton has 25161 states and 139780 transitions. Word has length 33 [2022-03-03 18:46:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:22,514 INFO L470 AbstractCegarLoop]: Abstraction has 25161 states and 139780 transitions. [2022-03-03 18:46:22,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 25161 states and 139780 transitions. [2022-03-03 18:46:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:22,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:22,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:22,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 18:46:22,592 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:22,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2075555487, now seen corresponding path program 96 times [2022-03-03 18:46:22,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:22,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15304979] [2022-03-03 18:46:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:23,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:23,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15304979] [2022-03-03 18:46:23,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15304979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:23,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:23,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:23,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321075081] [2022-03-03 18:46:23,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:23,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:23,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:23,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:23,119 INFO L87 Difference]: Start difference. First operand 25161 states and 139780 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:24,373 INFO L93 Difference]: Finished difference Result 63887 states and 339760 transitions. [2022-03-03 18:46:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:24,373 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:24,778 INFO L225 Difference]: With dead ends: 63887 [2022-03-03 18:46:24,778 INFO L226 Difference]: Without dead ends: 61113 [2022-03-03 18:46:24,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:24,778 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:24,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 275 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:24,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61113 states. [2022-03-03 18:46:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61113 to 24448. [2022-03-03 18:46:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 5.591115474291324) internal successors, (136686), 24447 states have internal predecessors, (136686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 136686 transitions. [2022-03-03 18:46:26,580 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 136686 transitions. Word has length 33 [2022-03-03 18:46:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:26,580 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 136686 transitions. [2022-03-03 18:46:26,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 136686 transitions. [2022-03-03 18:46:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:26,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:26,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:26,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 18:46:26,653 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash 681619205, now seen corresponding path program 97 times [2022-03-03 18:46:26,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:26,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662011225] [2022-03-03 18:46:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:26,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:26,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662011225] [2022-03-03 18:46:26,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662011225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:26,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:26,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:26,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966481836] [2022-03-03 18:46:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:26,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:26,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:26,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:26,880 INFO L87 Difference]: Start difference. First operand 24448 states and 136686 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:28,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:28,056 INFO L93 Difference]: Finished difference Result 63652 states and 340175 transitions. [2022-03-03 18:46:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:28,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:28,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:28,710 INFO L225 Difference]: With dead ends: 63652 [2022-03-03 18:46:28,710 INFO L226 Difference]: Without dead ends: 61629 [2022-03-03 18:46:28,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:28,710 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 352 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:28,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 321 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 18:46:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61629 states. [2022-03-03 18:46:29,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61629 to 24890. [2022-03-03 18:46:29,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24890 states, 24889 states have (on average 5.585158101972759) internal successors, (139009), 24889 states have internal predecessors, (139009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24890 states to 24890 states and 139009 transitions. [2022-03-03 18:46:30,027 INFO L78 Accepts]: Start accepts. Automaton has 24890 states and 139009 transitions. Word has length 33 [2022-03-03 18:46:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:30,028 INFO L470 AbstractCegarLoop]: Abstraction has 24890 states and 139009 transitions. [2022-03-03 18:46:30,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 24890 states and 139009 transitions. [2022-03-03 18:46:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:30,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:30,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:30,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 18:46:30,365 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:30,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1361717789, now seen corresponding path program 98 times [2022-03-03 18:46:30,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:30,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228527225] [2022-03-03 18:46:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:30,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:30,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228527225] [2022-03-03 18:46:30,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228527225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:30,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:30,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:30,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57748354] [2022-03-03 18:46:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:30,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:30,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:30,653 INFO L87 Difference]: Start difference. First operand 24890 states and 139009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:31,840 INFO L93 Difference]: Finished difference Result 63444 states and 338799 transitions. [2022-03-03 18:46:31,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:31,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:32,242 INFO L225 Difference]: With dead ends: 63444 [2022-03-03 18:46:32,242 INFO L226 Difference]: Without dead ends: 61413 [2022-03-03 18:46:32,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:32,243 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 359 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:32,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 273 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:32,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61413 states. [2022-03-03 18:46:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61413 to 24674. [2022-03-03 18:46:33,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.590280873829692) internal successors, (137929), 24673 states have internal predecessors, (137929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137929 transitions. [2022-03-03 18:46:33,932 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137929 transitions. Word has length 33 [2022-03-03 18:46:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:33,932 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137929 transitions. [2022-03-03 18:46:33,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137929 transitions. [2022-03-03 18:46:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:34,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:34,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:34,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 18:46:34,000 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:34,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash 129866467, now seen corresponding path program 99 times [2022-03-03 18:46:34,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:34,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240057783] [2022-03-03 18:46:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:34,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:34,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240057783] [2022-03-03 18:46:34,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240057783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:34,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:34,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:34,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561520047] [2022-03-03 18:46:34,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:34,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:34,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:34,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:34,249 INFO L87 Difference]: Start difference. First operand 24674 states and 137929 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:35,358 INFO L93 Difference]: Finished difference Result 64199 states and 342918 transitions. [2022-03-03 18:46:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:35,976 INFO L225 Difference]: With dead ends: 64199 [2022-03-03 18:46:35,976 INFO L226 Difference]: Without dead ends: 62176 [2022-03-03 18:46:35,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:35,976 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 344 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:35,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 311 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:36,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62176 states. [2022-03-03 18:46:37,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62176 to 25062. [2022-03-03 18:46:37,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25062 states, 25061 states have (on average 5.576832528630143) internal successors, (139761), 25061 states have internal predecessors, (139761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25062 states to 25062 states and 139761 transitions. [2022-03-03 18:46:37,315 INFO L78 Accepts]: Start accepts. Automaton has 25062 states and 139761 transitions. Word has length 33 [2022-03-03 18:46:37,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:37,315 INFO L470 AbstractCegarLoop]: Abstraction has 25062 states and 139761 transitions. [2022-03-03 18:46:37,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 25062 states and 139761 transitions. [2022-03-03 18:46:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:37,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:37,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:37,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 18:46:37,718 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:37,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1484112611, now seen corresponding path program 100 times [2022-03-03 18:46:37,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:37,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923044384] [2022-03-03 18:46:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:37,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:37,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923044384] [2022-03-03 18:46:37,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923044384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:37,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:37,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:37,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292806992] [2022-03-03 18:46:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:37,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:37,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:37,967 INFO L87 Difference]: Start difference. First operand 25062 states and 139761 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:39,135 INFO L93 Difference]: Finished difference Result 64366 states and 343317 transitions. [2022-03-03 18:46:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:39,874 INFO L225 Difference]: With dead ends: 64366 [2022-03-03 18:46:39,874 INFO L226 Difference]: Without dead ends: 61788 [2022-03-03 18:46:39,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:39,875 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 358 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:39,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 287 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61788 states. [2022-03-03 18:46:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61788 to 24674. [2022-03-03 18:46:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24674 states, 24673 states have (on average 5.584606655048028) internal successors, (137789), 24673 states have internal predecessors, (137789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24674 states to 24674 states and 137789 transitions. [2022-03-03 18:46:41,915 INFO L78 Accepts]: Start accepts. Automaton has 24674 states and 137789 transitions. Word has length 33 [2022-03-03 18:46:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:41,915 INFO L470 AbstractCegarLoop]: Abstraction has 24674 states and 137789 transitions. [2022-03-03 18:46:41,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 24674 states and 137789 transitions. [2022-03-03 18:46:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:42,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:42,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:42,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 18:46:42,094 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:42,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1112214081, now seen corresponding path program 101 times [2022-03-03 18:46:42,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:42,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024233883] [2022-03-03 18:46:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:42,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:42,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024233883] [2022-03-03 18:46:42,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024233883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:42,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:42,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:42,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640348750] [2022-03-03 18:46:42,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:42,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:42,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:42,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:42,330 INFO L87 Difference]: Start difference. First operand 24674 states and 137789 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:43,574 INFO L93 Difference]: Finished difference Result 63679 states and 339826 transitions. [2022-03-03 18:46:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:43,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:43,915 INFO L225 Difference]: With dead ends: 63679 [2022-03-03 18:46:43,916 INFO L226 Difference]: Without dead ends: 61864 [2022-03-03 18:46:43,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:43,916 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 385 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:43,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 294 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:44,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61864 states. [2022-03-03 18:46:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61864 to 24958. [2022-03-03 18:46:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24958 states, 24957 states have (on average 5.573306086468726) internal successors, (139093), 24957 states have internal predecessors, (139093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24958 states to 24958 states and 139093 transitions. [2022-03-03 18:46:45,508 INFO L78 Accepts]: Start accepts. Automaton has 24958 states and 139093 transitions. Word has length 33 [2022-03-03 18:46:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:45,508 INFO L470 AbstractCegarLoop]: Abstraction has 24958 states and 139093 transitions. [2022-03-03 18:46:45,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 24958 states and 139093 transitions. [2022-03-03 18:46:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:45,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:45,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:45,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 18:46:45,578 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1676531037, now seen corresponding path program 102 times [2022-03-03 18:46:45,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:45,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913947037] [2022-03-03 18:46:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:45,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:45,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913947037] [2022-03-03 18:46:45,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913947037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:45,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:45,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:45,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699211755] [2022-03-03 18:46:45,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:45,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:45,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:45,799 INFO L87 Difference]: Start difference. First operand 24958 states and 139093 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:46,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:46,923 INFO L93 Difference]: Finished difference Result 64054 states and 341489 transitions. [2022-03-03 18:46:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:46,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:46,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:47,650 INFO L225 Difference]: With dead ends: 64054 [2022-03-03 18:46:47,650 INFO L226 Difference]: Without dead ends: 61440 [2022-03-03 18:46:47,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:47,651 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 360 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:47,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 290 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:46:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61440 states. [2022-03-03 18:46:48,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61440 to 24534. [2022-03-03 18:46:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.590143887824563) internal successors, (137143), 24533 states have internal predecessors, (137143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137143 transitions. [2022-03-03 18:46:49,246 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137143 transitions. Word has length 33 [2022-03-03 18:46:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:49,246 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137143 transitions. [2022-03-03 18:46:49,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137143 transitions. [2022-03-03 18:46:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:49,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:49,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:49,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 18:46:49,382 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1341442333, now seen corresponding path program 103 times [2022-03-03 18:46:49,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:49,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388115790] [2022-03-03 18:46:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:49,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:49,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:49,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388115790] [2022-03-03 18:46:49,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388115790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:49,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:49,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:49,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250260423] [2022-03-03 18:46:49,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:49,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:49,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:49,629 INFO L87 Difference]: Start difference. First operand 24534 states and 137143 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:50,802 INFO L93 Difference]: Finished difference Result 63363 states and 338711 transitions. [2022-03-03 18:46:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:50,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:51,135 INFO L225 Difference]: With dead ends: 63363 [2022-03-03 18:46:51,136 INFO L226 Difference]: Without dead ends: 61340 [2022-03-03 18:46:51,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:51,136 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 368 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:51,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 279 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:51,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61340 states. [2022-03-03 18:46:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61340 to 24858. [2022-03-03 18:46:52,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24857 states have (on average 5.582451623285191) internal successors, (138763), 24857 states have internal predecessors, (138763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 138763 transitions. [2022-03-03 18:46:52,713 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 138763 transitions. Word has length 33 [2022-03-03 18:46:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:52,714 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 138763 transitions. [2022-03-03 18:46:52,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 138763 transitions. [2022-03-03 18:46:52,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:52,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:52,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:52,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 18:46:52,782 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash 910187969, now seen corresponding path program 104 times [2022-03-03 18:46:52,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:52,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090515125] [2022-03-03 18:46:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:52,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:52,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090515125] [2022-03-03 18:46:52,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090515125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:52,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:52,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:52,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931780542] [2022-03-03 18:46:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:52,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:52,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:52,998 INFO L87 Difference]: Start difference. First operand 24858 states and 138763 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:54,151 INFO L93 Difference]: Finished difference Result 63155 states and 337335 transitions. [2022-03-03 18:46:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:54,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:54,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:54,807 INFO L225 Difference]: With dead ends: 63155 [2022-03-03 18:46:54,808 INFO L226 Difference]: Without dead ends: 61124 [2022-03-03 18:46:54,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:54,808 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 365 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:54,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 290 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:54,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61124 states. [2022-03-03 18:46:56,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61124 to 24642. [2022-03-03 18:46:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.587557323160586) internal successors, (137683), 24641 states have internal predecessors, (137683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137683 transitions. [2022-03-03 18:46:56,317 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137683 transitions. Word has length 33 [2022-03-03 18:46:56,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:46:56,317 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137683 transitions. [2022-03-03 18:46:56,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137683 transitions. [2022-03-03 18:46:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:46:56,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:46:56,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:46:56,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 18:46:56,708 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:46:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:46:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1842424989, now seen corresponding path program 105 times [2022-03-03 18:46:56,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:46:56,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979479839] [2022-03-03 18:46:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:46:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:46:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:46:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:46:56,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:46:56,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979479839] [2022-03-03 18:46:56,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979479839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:46:56,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:46:56,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:46:56,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634334707] [2022-03-03 18:46:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:46:56,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:46:56,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:46:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:46:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:46:56,993 INFO L87 Difference]: Start difference. First operand 24642 states and 137683 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:46:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:46:58,289 INFO L93 Difference]: Finished difference Result 63717 states and 340556 transitions. [2022-03-03 18:46:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:46:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:46:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:46:58,687 INFO L225 Difference]: With dead ends: 63717 [2022-03-03 18:46:58,687 INFO L226 Difference]: Without dead ends: 61694 [2022-03-03 18:46:58,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:46:58,687 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 360 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:46:58,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 289 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:46:58,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61694 states. [2022-03-03 18:47:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61694 to 24966. [2022-03-03 18:47:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24966 states, 24965 states have (on average 5.575605848187463) internal successors, (139195), 24965 states have internal predecessors, (139195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:00,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24966 states to 24966 states and 139195 transitions. [2022-03-03 18:47:00,431 INFO L78 Accepts]: Start accepts. Automaton has 24966 states and 139195 transitions. Word has length 33 [2022-03-03 18:47:00,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:00,431 INFO L470 AbstractCegarLoop]: Abstraction has 24966 states and 139195 transitions. [2022-03-03 18:47:00,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand 24966 states and 139195 transitions. [2022-03-03 18:47:00,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:00,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:00,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:00,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 18:47:00,500 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:00,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:00,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1124856989, now seen corresponding path program 106 times [2022-03-03 18:47:00,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:00,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029060734] [2022-03-03 18:47:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:00,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:00,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:00,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029060734] [2022-03-03 18:47:00,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029060734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:00,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:00,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:00,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236845683] [2022-03-03 18:47:00,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:00,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:00,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:00,723 INFO L87 Difference]: Start difference. First operand 24966 states and 139195 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:01,905 INFO L93 Difference]: Finished difference Result 63755 states and 340377 transitions. [2022-03-03 18:47:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:01,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:02,574 INFO L225 Difference]: With dead ends: 63755 [2022-03-03 18:47:02,574 INFO L226 Difference]: Without dead ends: 61370 [2022-03-03 18:47:02,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:02,575 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 363 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:02,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 330 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61370 states. [2022-03-03 18:47:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61370 to 24642. [2022-03-03 18:47:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24642 states, 24641 states have (on average 5.583174384156488) internal successors, (137575), 24641 states have internal predecessors, (137575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24642 states to 24642 states and 137575 transitions. [2022-03-03 18:47:04,325 INFO L78 Accepts]: Start accepts. Automaton has 24642 states and 137575 transitions. Word has length 33 [2022-03-03 18:47:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:04,325 INFO L470 AbstractCegarLoop]: Abstraction has 24642 states and 137575 transitions. [2022-03-03 18:47:04,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 24642 states and 137575 transitions. [2022-03-03 18:47:04,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:04,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:04,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:04,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 18:47:04,487 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:04,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -860077375, now seen corresponding path program 107 times [2022-03-03 18:47:04,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:04,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625600675] [2022-03-03 18:47:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:04,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:04,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:04,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625600675] [2022-03-03 18:47:04,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625600675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:04,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:04,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:04,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942977195] [2022-03-03 18:47:04,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:04,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:04,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:04,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:04,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:04,714 INFO L87 Difference]: Start difference. First operand 24642 states and 137575 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:05,942 INFO L93 Difference]: Finished difference Result 63197 states and 337496 transitions. [2022-03-03 18:47:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:05,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:05,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:06,333 INFO L225 Difference]: With dead ends: 63197 [2022-03-03 18:47:06,333 INFO L226 Difference]: Without dead ends: 61382 [2022-03-03 18:47:06,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:06,333 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 383 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:06,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 257 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:47:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61382 states. [2022-03-03 18:47:07,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61382 to 24862. [2022-03-03 18:47:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24862 states, 24861 states have (on average 5.573347813844978) internal successors, (138559), 24861 states have internal predecessors, (138559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24862 states to 24862 states and 138559 transitions. [2022-03-03 18:47:08,116 INFO L78 Accepts]: Start accepts. Automaton has 24862 states and 138559 transitions. Word has length 33 [2022-03-03 18:47:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:08,116 INFO L470 AbstractCegarLoop]: Abstraction has 24862 states and 138559 transitions. [2022-03-03 18:47:08,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24862 states and 138559 transitions. [2022-03-03 18:47:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:08,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:08,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:08,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 18:47:08,195 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:08,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:08,195 INFO L85 PathProgramCache]: Analyzing trace with hash -641725789, now seen corresponding path program 108 times [2022-03-03 18:47:08,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:08,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479412087] [2022-03-03 18:47:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:08,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:08,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479412087] [2022-03-03 18:47:08,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479412087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:08,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:08,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:08,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35914872] [2022-03-03 18:47:08,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:08,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:08,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:08,441 INFO L87 Difference]: Start difference. First operand 24862 states and 138559 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:09,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:09,881 INFO L93 Difference]: Finished difference Result 63443 states and 338581 transitions. [2022-03-03 18:47:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:09,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:09,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:10,524 INFO L225 Difference]: With dead ends: 63443 [2022-03-03 18:47:10,524 INFO L226 Difference]: Without dead ends: 61054 [2022-03-03 18:47:10,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:10,525 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 348 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:10,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 332 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:10,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61054 states. [2022-03-03 18:47:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61054 to 24534. [2022-03-03 18:47:12,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.587942770961562) internal successors, (137089), 24533 states have internal predecessors, (137089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137089 transitions. [2022-03-03 18:47:12,165 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137089 transitions. Word has length 33 [2022-03-03 18:47:12,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:12,165 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137089 transitions. [2022-03-03 18:47:12,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137089 transitions. [2022-03-03 18:47:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:12,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:12,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:12,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 18:47:12,224 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:12,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1833488447, now seen corresponding path program 109 times [2022-03-03 18:47:12,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:12,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853475300] [2022-03-03 18:47:12,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:12,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:12,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:12,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853475300] [2022-03-03 18:47:12,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853475300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:12,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:12,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:12,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65992478] [2022-03-03 18:47:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:12,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:12,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:12,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:12,441 INFO L87 Difference]: Start difference. First operand 24534 states and 137089 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:13,433 INFO L93 Difference]: Finished difference Result 64826 states and 346320 transitions. [2022-03-03 18:47:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:13,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:14,078 INFO L225 Difference]: With dead ends: 64826 [2022-03-03 18:47:14,078 INFO L226 Difference]: Without dead ends: 62803 [2022-03-03 18:47:14,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:14,079 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:14,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 257 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:47:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62803 states. [2022-03-03 18:47:15,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62803 to 25148. [2022-03-03 18:47:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25148 states, 25147 states have (on average 5.576808366803197) internal successors, (140240), 25147 states have internal predecessors, (140240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25148 states to 25148 states and 140240 transitions. [2022-03-03 18:47:15,921 INFO L78 Accepts]: Start accepts. Automaton has 25148 states and 140240 transitions. Word has length 33 [2022-03-03 18:47:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:15,922 INFO L470 AbstractCegarLoop]: Abstraction has 25148 states and 140240 transitions. [2022-03-03 18:47:15,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 25148 states and 140240 transitions. [2022-03-03 18:47:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:16,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:16,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:16,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 18:47:16,082 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:16,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash -479242303, now seen corresponding path program 110 times [2022-03-03 18:47:16,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:16,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613565502] [2022-03-03 18:47:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:16,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:16,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613565502] [2022-03-03 18:47:16,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613565502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:16,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:16,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:16,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326099229] [2022-03-03 18:47:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:16,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:16,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:16,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:16,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:16,322 INFO L87 Difference]: Start difference. First operand 25148 states and 140240 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:17,572 INFO L93 Difference]: Finished difference Result 64993 states and 346719 transitions. [2022-03-03 18:47:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:17,923 INFO L225 Difference]: With dead ends: 64993 [2022-03-03 18:47:17,923 INFO L226 Difference]: Without dead ends: 62415 [2022-03-03 18:47:17,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:17,923 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 346 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:17,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 302 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62415 states. [2022-03-03 18:47:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62415 to 24760. [2022-03-03 18:47:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.58237408619088) internal successors, (138214), 24759 states have internal predecessors, (138214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:19,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138214 transitions. [2022-03-03 18:47:19,728 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138214 transitions. Word has length 33 [2022-03-03 18:47:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:19,728 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138214 transitions. [2022-03-03 18:47:19,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:19,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138214 transitions. [2022-03-03 18:47:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:19,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:19,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:19,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 18:47:19,806 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:19,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1980576803, now seen corresponding path program 111 times [2022-03-03 18:47:19,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:19,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39780968] [2022-03-03 18:47:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:19,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:20,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:20,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39780968] [2022-03-03 18:47:20,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39780968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:20,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:20,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:20,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342908762] [2022-03-03 18:47:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:20,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:20,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:20,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:20,076 INFO L87 Difference]: Start difference. First operand 24760 states and 138214 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:21,352 INFO L93 Difference]: Finished difference Result 64633 states and 345228 transitions. [2022-03-03 18:47:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:22,141 INFO L225 Difference]: With dead ends: 64633 [2022-03-03 18:47:22,142 INFO L226 Difference]: Without dead ends: 62610 [2022-03-03 18:47:22,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:22,142 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 334 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:22,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 377 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:22,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62610 states. [2022-03-03 18:47:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62610 to 25084. [2022-03-03 18:47:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25084 states, 25083 states have (on average 5.570545787983893) internal successors, (139726), 25083 states have internal predecessors, (139726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25084 states to 25084 states and 139726 transitions. [2022-03-03 18:47:24,012 INFO L78 Accepts]: Start accepts. Automaton has 25084 states and 139726 transitions. Word has length 33 [2022-03-03 18:47:24,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:24,013 INFO L470 AbstractCegarLoop]: Abstraction has 25084 states and 139726 transitions. [2022-03-03 18:47:24,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 25084 states and 139726 transitions. [2022-03-03 18:47:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:24,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:24,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:24,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 18:47:24,106 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:24,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:24,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1216706497, now seen corresponding path program 112 times [2022-03-03 18:47:24,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:24,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031079501] [2022-03-03 18:47:24,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:24,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:24,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:24,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031079501] [2022-03-03 18:47:24,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031079501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:24,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:24,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:24,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882412412] [2022-03-03 18:47:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:24,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:24,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:24,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:24,338 INFO L87 Difference]: Start difference. First operand 25084 states and 139726 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:25,559 INFO L93 Difference]: Finished difference Result 64671 states and 345049 transitions. [2022-03-03 18:47:25,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:25,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:25,941 INFO L225 Difference]: With dead ends: 64671 [2022-03-03 18:47:25,941 INFO L226 Difference]: Without dead ends: 62286 [2022-03-03 18:47:25,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:25,941 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 337 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:25,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 312 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:26,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62286 states. [2022-03-03 18:47:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62286 to 24760. [2022-03-03 18:47:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24760 states, 24759 states have (on average 5.575831010945515) internal successors, (138052), 24759 states have internal predecessors, (138052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 138052 transitions. [2022-03-03 18:47:27,699 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 138052 transitions. Word has length 33 [2022-03-03 18:47:27,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:27,699 INFO L470 AbstractCegarLoop]: Abstraction has 24760 states and 138052 transitions. [2022-03-03 18:47:27,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 138052 transitions. [2022-03-03 18:47:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:27,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:27,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:27,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 18:47:27,777 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1908838337, now seen corresponding path program 113 times [2022-03-03 18:47:27,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:27,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333797682] [2022-03-03 18:47:27,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:27,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:28,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:28,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333797682] [2022-03-03 18:47:28,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333797682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:28,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:28,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:28,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781786640] [2022-03-03 18:47:28,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:28,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:28,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:28,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:28,005 INFO L87 Difference]: Start difference. First operand 24760 states and 138052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:29,219 INFO L93 Difference]: Finished difference Result 65114 states and 347170 transitions. [2022-03-03 18:47:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:30,029 INFO L225 Difference]: With dead ends: 65114 [2022-03-03 18:47:30,029 INFO L226 Difference]: Without dead ends: 62924 [2022-03-03 18:47:30,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:30,029 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 372 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:30,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 307 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62924 states. [2022-03-03 18:47:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62924 to 25231. [2022-03-03 18:47:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25231 states, 25230 states have (on average 5.554458977407847) internal successors, (140139), 25230 states have internal predecessors, (140139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25231 states to 25231 states and 140139 transitions. [2022-03-03 18:47:31,913 INFO L78 Accepts]: Start accepts. Automaton has 25231 states and 140139 transitions. Word has length 33 [2022-03-03 18:47:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:31,914 INFO L470 AbstractCegarLoop]: Abstraction has 25231 states and 140139 transitions. [2022-03-03 18:47:31,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 25231 states and 140139 transitions. [2022-03-03 18:47:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:31,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:31,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:31,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 18:47:31,999 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:32,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1305066333, now seen corresponding path program 114 times [2022-03-03 18:47:32,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:32,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816356434] [2022-03-03 18:47:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:32,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:32,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816356434] [2022-03-03 18:47:32,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816356434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:32,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:32,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:32,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620088122] [2022-03-03 18:47:32,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:32,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:32,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:32,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:32,249 INFO L87 Difference]: Start difference. First operand 25231 states and 140139 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:33,492 INFO L93 Difference]: Finished difference Result 64985 states and 346185 transitions. [2022-03-03 18:47:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:33,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:33,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:33,871 INFO L225 Difference]: With dead ends: 64985 [2022-03-03 18:47:33,871 INFO L226 Difference]: Without dead ends: 62227 [2022-03-03 18:47:33,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:33,871 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 382 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:33,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 287 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62227 states. [2022-03-03 18:47:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62227 to 24534. [2022-03-03 18:47:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24534 states, 24533 states have (on average 5.584437288550117) internal successors, (137003), 24533 states have internal predecessors, (137003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24534 states to 24534 states and 137003 transitions. [2022-03-03 18:47:35,651 INFO L78 Accepts]: Start accepts. Automaton has 24534 states and 137003 transitions. Word has length 33 [2022-03-03 18:47:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:35,652 INFO L470 AbstractCegarLoop]: Abstraction has 24534 states and 137003 transitions. [2022-03-03 18:47:35,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 24534 states and 137003 transitions. [2022-03-03 18:47:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:35,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:35,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:35,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 18:47:35,723 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash -861091937, now seen corresponding path program 115 times [2022-03-03 18:47:35,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:35,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411793396] [2022-03-03 18:47:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:35,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:35,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411793396] [2022-03-03 18:47:35,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411793396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:35,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:35,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:35,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476213976] [2022-03-03 18:47:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:35,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:35,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:35,949 INFO L87 Difference]: Start difference. First operand 24534 states and 137003 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:37,143 INFO L93 Difference]: Finished difference Result 63838 states and 340516 transitions. [2022-03-03 18:47:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:37,854 INFO L225 Difference]: With dead ends: 63838 [2022-03-03 18:47:37,854 INFO L226 Difference]: Without dead ends: 62023 [2022-03-03 18:47:37,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:37,854 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 358 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:37,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 328 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62023 states. [2022-03-03 18:47:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62023 to 24992. [2022-03-03 18:47:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24992 states, 24991 states have (on average 5.573366411908287) internal successors, (139284), 24991 states have internal predecessors, (139284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24992 states to 24992 states and 139284 transitions. [2022-03-03 18:47:39,478 INFO L78 Accepts]: Start accepts. Automaton has 24992 states and 139284 transitions. Word has length 33 [2022-03-03 18:47:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:39,478 INFO L470 AbstractCegarLoop]: Abstraction has 24992 states and 139284 transitions. [2022-03-03 18:47:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 24992 states and 139284 transitions. [2022-03-03 18:47:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:39,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:39,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:39,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 18:47:39,546 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash 645130241, now seen corresponding path program 116 times [2022-03-03 18:47:39,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:39,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208606676] [2022-03-03 18:47:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:39,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:39,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208606676] [2022-03-03 18:47:39,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208606676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:39,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:39,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:39,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395288914] [2022-03-03 18:47:39,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:39,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:39,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:39,765 INFO L87 Difference]: Start difference. First operand 24992 states and 139284 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:41,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:41,034 INFO L93 Difference]: Finished difference Result 64213 states and 342179 transitions. [2022-03-03 18:47:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:41,574 INFO L225 Difference]: With dead ends: 64213 [2022-03-03 18:47:41,574 INFO L226 Difference]: Without dead ends: 61739 [2022-03-03 18:47:41,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:41,575 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 353 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:41,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 320 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61739 states. [2022-03-03 18:47:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61739 to 24708. [2022-03-03 18:47:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.578904763832113) internal successors, (137838), 24707 states have internal predecessors, (137838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137838 transitions. [2022-03-03 18:47:43,244 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137838 transitions. Word has length 33 [2022-03-03 18:47:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:43,245 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137838 transitions. [2022-03-03 18:47:43,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137838 transitions. [2022-03-03 18:47:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:43,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:43,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:43,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 18:47:43,307 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:43,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1341993983, now seen corresponding path program 117 times [2022-03-03 18:47:43,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:43,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739725311] [2022-03-03 18:47:43,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:43,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:43,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:43,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739725311] [2022-03-03 18:47:43,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739725311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:43,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:43,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:43,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406514764] [2022-03-03 18:47:43,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:43,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:43,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:43,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:43,524 INFO L87 Difference]: Start difference. First operand 24708 states and 137838 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:44,528 INFO L93 Difference]: Finished difference Result 63645 states and 339476 transitions. [2022-03-03 18:47:44,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:44,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:44,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:45,119 INFO L225 Difference]: With dead ends: 63645 [2022-03-03 18:47:45,119 INFO L226 Difference]: Without dead ends: 61830 [2022-03-03 18:47:45,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:45,119 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 377 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:45,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 271 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:47:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61830 states. [2022-03-03 18:47:46,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61830 to 24928. [2022-03-03 18:47:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24928 states, 24927 states have (on average 5.569141894331448) internal successors, (138822), 24927 states have internal predecessors, (138822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 138822 transitions. [2022-03-03 18:47:46,380 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 138822 transitions. Word has length 33 [2022-03-03 18:47:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:46,381 INFO L470 AbstractCegarLoop]: Abstraction has 24928 states and 138822 transitions. [2022-03-03 18:47:46,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 138822 transitions. [2022-03-03 18:47:46,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:46,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:46,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:46,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 18:47:46,795 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:46,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1689886593, now seen corresponding path program 118 times [2022-03-03 18:47:46,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:46,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279222922] [2022-03-03 18:47:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:46,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:47,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:47,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279222922] [2022-03-03 18:47:47,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279222922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:47,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:47,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:47,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195772621] [2022-03-03 18:47:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:47,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:47,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:47,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:47,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:47,029 INFO L87 Difference]: Start difference. First operand 24928 states and 138822 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:48,343 INFO L93 Difference]: Finished difference Result 63891 states and 340561 transitions. [2022-03-03 18:47:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:48,699 INFO L225 Difference]: With dead ends: 63891 [2022-03-03 18:47:48,700 INFO L226 Difference]: Without dead ends: 61610 [2022-03-03 18:47:48,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:48,700 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 345 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:48,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 317 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:47:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61610 states. [2022-03-03 18:47:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61610 to 24708. [2022-03-03 18:47:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.574452584287854) internal successors, (137728), 24707 states have internal predecessors, (137728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137728 transitions. [2022-03-03 18:47:50,163 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137728 transitions. Word has length 33 [2022-03-03 18:47:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:50,163 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137728 transitions. [2022-03-03 18:47:50,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137728 transitions. [2022-03-03 18:47:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:50,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:50,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:50,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 18:47:50,227 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:50,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 27606883, now seen corresponding path program 119 times [2022-03-03 18:47:50,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:50,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050017156] [2022-03-03 18:47:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:50,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:50,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050017156] [2022-03-03 18:47:50,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050017156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:50,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:50,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:50,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747477095] [2022-03-03 18:47:50,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:50,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:50,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:50,445 INFO L87 Difference]: Start difference. First operand 24708 states and 137728 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:51,446 INFO L93 Difference]: Finished difference Result 64646 states and 344422 transitions. [2022-03-03 18:47:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:51,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:51,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:52,039 INFO L225 Difference]: With dead ends: 64646 [2022-03-03 18:47:52,039 INFO L226 Difference]: Without dead ends: 62456 [2022-03-03 18:47:52,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:52,039 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 375 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:52,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 277 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:47:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62456 states. [2022-03-03 18:47:53,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62456 to 25179. [2022-03-03 18:47:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25179 states, 25178 states have (on average 5.5530621971562475) internal successors, (139815), 25178 states have internal predecessors, (139815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25179 states to 25179 states and 139815 transitions. [2022-03-03 18:47:53,593 INFO L78 Accepts]: Start accepts. Automaton has 25179 states and 139815 transitions. Word has length 33 [2022-03-03 18:47:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:53,593 INFO L470 AbstractCegarLoop]: Abstraction has 25179 states and 139815 transitions. [2022-03-03 18:47:53,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 25179 states and 139815 transitions. [2022-03-03 18:47:53,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:53,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:53,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:53,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 18:47:53,735 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash -819190079, now seen corresponding path program 120 times [2022-03-03 18:47:53,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:53,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715730226] [2022-03-03 18:47:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:53,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:54,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:54,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715730226] [2022-03-03 18:47:54,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715730226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:54,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:54,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:54,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579507689] [2022-03-03 18:47:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:54,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:54,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:54,001 INFO L87 Difference]: Start difference. First operand 25179 states and 139815 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:55,159 INFO L93 Difference]: Finished difference Result 64517 states and 343437 transitions. [2022-03-03 18:47:55,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:55,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:55,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:55,489 INFO L225 Difference]: With dead ends: 64517 [2022-03-03 18:47:55,489 INFO L226 Difference]: Without dead ends: 61691 [2022-03-03 18:47:55,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:55,489 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 377 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:55,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 254 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 18:47:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61691 states. [2022-03-03 18:47:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61691 to 24414. [2022-03-03 18:47:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24414 states, 24413 states have (on average 5.5938229631753575) internal successors, (136562), 24413 states have internal predecessors, (136562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24414 states to 24414 states and 136562 transitions. [2022-03-03 18:47:57,033 INFO L78 Accepts]: Start accepts. Automaton has 24414 states and 136562 transitions. Word has length 33 [2022-03-03 18:47:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:47:57,033 INFO L470 AbstractCegarLoop]: Abstraction has 24414 states and 136562 transitions. [2022-03-03 18:47:57,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:57,033 INFO L276 IsEmpty]: Start isEmpty. Operand 24414 states and 136562 transitions. [2022-03-03 18:47:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:47:57,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:47:57,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:47:57,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 18:47:57,102 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:47:57,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:47:57,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1012480053, now seen corresponding path program 121 times [2022-03-03 18:47:57,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:47:57,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013743728] [2022-03-03 18:47:57,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:47:57,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:47:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:47:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:47:57,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:47:57,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013743728] [2022-03-03 18:47:57,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013743728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:47:57,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:47:57,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:47:57,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848539906] [2022-03-03 18:47:57,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:47:57,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:47:57,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:47:57,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:47:57,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:47:57,336 INFO L87 Difference]: Start difference. First operand 24414 states and 136562 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:47:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:47:58,464 INFO L93 Difference]: Finished difference Result 62382 states and 333464 transitions. [2022-03-03 18:47:58,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:47:58,465 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:47:58,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:47:59,123 INFO L225 Difference]: With dead ends: 62382 [2022-03-03 18:47:59,124 INFO L226 Difference]: Without dead ends: 60567 [2022-03-03 18:47:59,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:47:59,124 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 399 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:47:59,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 262 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:47:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60567 states. [2022-03-03 18:48:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60567 to 24848. [2022-03-03 18:48:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 5.588481506821749) internal successors, (138857), 24847 states have internal predecessors, (138857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 138857 transitions. [2022-03-03 18:48:00,486 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 138857 transitions. Word has length 33 [2022-03-03 18:48:00,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:00,486 INFO L470 AbstractCegarLoop]: Abstraction has 24848 states and 138857 transitions. [2022-03-03 18:48:00,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 138857 transitions. [2022-03-03 18:48:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:00,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:00,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:00,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 18:48:00,915 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash -539518859, now seen corresponding path program 122 times [2022-03-03 18:48:00,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:00,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142663095] [2022-03-03 18:48:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:00,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:01,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:01,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:01,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142663095] [2022-03-03 18:48:01,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142663095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:01,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:01,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:01,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054783386] [2022-03-03 18:48:01,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:01,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:01,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:01,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:01,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:01,141 INFO L87 Difference]: Start difference. First operand 24848 states and 138857 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:02,279 INFO L93 Difference]: Finished difference Result 62590 states and 334408 transitions. [2022-03-03 18:48:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:02,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:02,598 INFO L225 Difference]: With dead ends: 62590 [2022-03-03 18:48:02,598 INFO L226 Difference]: Without dead ends: 60351 [2022-03-03 18:48:02,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:02,599 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 349 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:02,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 286 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60351 states. [2022-03-03 18:48:03,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60351 to 24632. [2022-03-03 18:48:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.593642158255856) internal successors, (137777), 24631 states have internal predecessors, (137777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137777 transitions. [2022-03-03 18:48:04,058 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137777 transitions. Word has length 33 [2022-03-03 18:48:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:04,058 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137777 transitions. [2022-03-03 18:48:04,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137777 transitions. [2022-03-03 18:48:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:04,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:04,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:04,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 18:48:04,122 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1391951477, now seen corresponding path program 123 times [2022-03-03 18:48:04,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:04,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770523800] [2022-03-03 18:48:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:04,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:04,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:04,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770523800] [2022-03-03 18:48:04,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770523800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:04,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:04,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:04,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126361433] [2022-03-03 18:48:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:04,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:04,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:04,348 INFO L87 Difference]: Start difference. First operand 24632 states and 137777 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:05,398 INFO L93 Difference]: Finished difference Result 62617 states and 334415 transitions. [2022-03-03 18:48:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:05,971 INFO L225 Difference]: With dead ends: 62617 [2022-03-03 18:48:05,971 INFO L226 Difference]: Without dead ends: 60802 [2022-03-03 18:48:05,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:05,971 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 391 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:05,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 272 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60802 states. [2022-03-03 18:48:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60802 to 24916. [2022-03-03 18:48:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24915 states have (on average 5.582219546457957) internal successors, (139081), 24915 states have internal predecessors, (139081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 139081 transitions. [2022-03-03 18:48:07,207 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 139081 transitions. Word has length 33 [2022-03-03 18:48:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:07,207 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 139081 transitions. [2022-03-03 18:48:07,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 139081 transitions. [2022-03-03 18:48:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:07,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:07,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:07,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 18:48:07,603 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash -274071733, now seen corresponding path program 124 times [2022-03-03 18:48:07,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:07,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937739772] [2022-03-03 18:48:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:07,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:07,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:07,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937739772] [2022-03-03 18:48:07,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937739772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:07,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:07,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:07,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530201130] [2022-03-03 18:48:07,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:07,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:07,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:07,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:07,862 INFO L87 Difference]: Start difference. First operand 24916 states and 139081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:09,042 INFO L93 Difference]: Finished difference Result 62992 states and 336078 transitions. [2022-03-03 18:48:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:09,672 INFO L225 Difference]: With dead ends: 62992 [2022-03-03 18:48:09,684 INFO L226 Difference]: Without dead ends: 60518 [2022-03-03 18:48:09,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:09,687 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 376 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:09,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 285 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60518 states. [2022-03-03 18:48:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60518 to 24632. [2022-03-03 18:48:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 5.58795826397629) internal successors, (137637), 24631 states have internal predecessors, (137637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 137637 transitions. [2022-03-03 18:48:11,442 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 137637 transitions. Word has length 33 [2022-03-03 18:48:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:11,442 INFO L470 AbstractCegarLoop]: Abstraction has 24632 states and 137637 transitions. [2022-03-03 18:48:11,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 137637 transitions. [2022-03-03 18:48:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:11,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:11,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:11,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 18:48:11,505 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:11,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:11,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1263897005, now seen corresponding path program 125 times [2022-03-03 18:48:11,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:11,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14247699] [2022-03-03 18:48:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:11,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:11,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:11,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14247699] [2022-03-03 18:48:11,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14247699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:11,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:11,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:11,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608850652] [2022-03-03 18:48:11,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:11,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:11,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:11,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:11,725 INFO L87 Difference]: Start difference. First operand 24632 states and 137637 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:12,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:12,731 INFO L93 Difference]: Finished difference Result 63137 states and 337227 transitions. [2022-03-03 18:48:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:12,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:13,299 INFO L225 Difference]: With dead ends: 63137 [2022-03-03 18:48:13,299 INFO L226 Difference]: Without dead ends: 61114 [2022-03-03 18:48:13,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:13,299 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 397 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:13,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 287 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61114 states. [2022-03-03 18:48:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61114 to 25020. [2022-03-03 18:48:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25020 states, 25019 states have (on average 5.574523362244694) internal successors, (139469), 25019 states have internal predecessors, (139469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25020 states to 25020 states and 139469 transitions. [2022-03-03 18:48:14,562 INFO L78 Accepts]: Start accepts. Automaton has 25020 states and 139469 transitions. Word has length 33 [2022-03-03 18:48:14,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:14,562 INFO L470 AbstractCegarLoop]: Abstraction has 25020 states and 139469 transitions. [2022-03-03 18:48:14,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:14,563 INFO L276 IsEmpty]: Start isEmpty. Operand 25020 states and 139469 transitions. [2022-03-03 18:48:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:14,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:14,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:14,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 18:48:14,957 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:14,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1315098293, now seen corresponding path program 126 times [2022-03-03 18:48:14,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:14,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433165203] [2022-03-03 18:48:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:14,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:15,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:15,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433165203] [2022-03-03 18:48:15,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433165203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:15,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:15,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:15,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316830317] [2022-03-03 18:48:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:15,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:15,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:15,239 INFO L87 Difference]: Start difference. First operand 25020 states and 139469 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:16,382 INFO L93 Difference]: Finished difference Result 63304 states and 337626 transitions. [2022-03-03 18:48:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:16,709 INFO L225 Difference]: With dead ends: 63304 [2022-03-03 18:48:16,709 INFO L226 Difference]: Without dead ends: 60586 [2022-03-03 18:48:16,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:16,709 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 371 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:16,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 304 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60586 states. [2022-03-03 18:48:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60586 to 24492. [2022-03-03 18:48:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24492 states, 24491 states have (on average 5.594259115593483) internal successors, (137009), 24491 states have internal predecessors, (137009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24492 states to 24492 states and 137009 transitions. [2022-03-03 18:48:18,181 INFO L78 Accepts]: Start accepts. Automaton has 24492 states and 137009 transitions. Word has length 33 [2022-03-03 18:48:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:18,181 INFO L470 AbstractCegarLoop]: Abstraction has 24492 states and 137009 transitions. [2022-03-03 18:48:18,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:18,182 INFO L276 IsEmpty]: Start isEmpty. Operand 24492 states and 137009 transitions. [2022-03-03 18:48:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:18,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:18,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:18,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 18:48:18,242 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2081097107, now seen corresponding path program 127 times [2022-03-03 18:48:18,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:18,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540959976] [2022-03-03 18:48:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:18,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:18,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:18,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540959976] [2022-03-03 18:48:18,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540959976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:18,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:18,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:18,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177264379] [2022-03-03 18:48:18,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:18,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:18,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:18,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:18,457 INFO L87 Difference]: Start difference. First operand 24492 states and 137009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:19,508 INFO L93 Difference]: Finished difference Result 61627 states and 329401 transitions. [2022-03-03 18:48:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:20,064 INFO L225 Difference]: With dead ends: 61627 [2022-03-03 18:48:20,065 INFO L226 Difference]: Without dead ends: 59812 [2022-03-03 18:48:20,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:20,065 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 344 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:20,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 341 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:48:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59812 states. [2022-03-03 18:48:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59812 to 24780. [2022-03-03 18:48:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24780 states, 24779 states have (on average 5.585415069211833) internal successors, (138401), 24779 states have internal predecessors, (138401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24780 states to 24780 states and 138401 transitions. [2022-03-03 18:48:21,471 INFO L78 Accepts]: Start accepts. Automaton has 24780 states and 138401 transitions. Word has length 33 [2022-03-03 18:48:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:21,472 INFO L470 AbstractCegarLoop]: Abstraction has 24780 states and 138401 transitions. [2022-03-03 18:48:21,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 24780 states and 138401 transitions. [2022-03-03 18:48:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:21,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:21,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:21,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 18:48:21,841 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1740908995, now seen corresponding path program 128 times [2022-03-03 18:48:21,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:21,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315829753] [2022-03-03 18:48:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:22,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:22,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315829753] [2022-03-03 18:48:22,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315829753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:22,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:22,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:22,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802554184] [2022-03-03 18:48:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:22,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:22,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:22,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:22,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:22,115 INFO L87 Difference]: Start difference. First operand 24780 states and 138401 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:23,398 INFO L93 Difference]: Finished difference Result 61835 states and 330345 transitions. [2022-03-03 18:48:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:23,398 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:23,786 INFO L225 Difference]: With dead ends: 61835 [2022-03-03 18:48:23,786 INFO L226 Difference]: Without dead ends: 59596 [2022-03-03 18:48:23,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:23,786 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 365 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:23,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 289 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:23,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59596 states. [2022-03-03 18:48:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59596 to 24564. [2022-03-03 18:48:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24564 states, 24563 states have (on average 5.5920286609941785) internal successors, (137357), 24563 states have internal predecessors, (137357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24564 states to 24564 states and 137357 transitions. [2022-03-03 18:48:25,456 INFO L78 Accepts]: Start accepts. Automaton has 24564 states and 137357 transitions. Word has length 33 [2022-03-03 18:48:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:25,457 INFO L470 AbstractCegarLoop]: Abstraction has 24564 states and 137357 transitions. [2022-03-03 18:48:25,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 24564 states and 137357 transitions. [2022-03-03 18:48:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:25,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:25,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:25,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 18:48:25,515 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1132807563, now seen corresponding path program 129 times [2022-03-03 18:48:25,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:25,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792052364] [2022-03-03 18:48:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:25,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:25,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:25,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792052364] [2022-03-03 18:48:25,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792052364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:25,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:25,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:25,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446419382] [2022-03-03 18:48:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:25,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:25,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:25,737 INFO L87 Difference]: Start difference. First operand 24564 states and 137357 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:26,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:26,736 INFO L93 Difference]: Finished difference Result 61347 states and 327749 transitions. [2022-03-03 18:48:26,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:26,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:27,019 INFO L225 Difference]: With dead ends: 61347 [2022-03-03 18:48:27,020 INFO L226 Difference]: Without dead ends: 59532 [2022-03-03 18:48:27,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:27,020 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 364 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:27,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 271 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:27,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59532 states. [2022-03-03 18:48:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59532 to 24708. [2022-03-03 18:48:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24707 states have (on average 5.584692597239648) internal successors, (137981), 24707 states have internal predecessors, (137981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 137981 transitions. [2022-03-03 18:48:28,486 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 137981 transitions. Word has length 33 [2022-03-03 18:48:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:28,486 INFO L470 AbstractCegarLoop]: Abstraction has 24708 states and 137981 transitions. [2022-03-03 18:48:28,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 137981 transitions. [2022-03-03 18:48:28,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:28,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:28,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:28,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 18:48:28,554 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:28,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1131844321, now seen corresponding path program 130 times [2022-03-03 18:48:28,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:28,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955393087] [2022-03-03 18:48:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:28,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:28,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:28,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955393087] [2022-03-03 18:48:28,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955393087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:28,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:28,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:28,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687691224] [2022-03-03 18:48:28,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:28,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:28,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:28,771 INFO L87 Difference]: Start difference. First operand 24708 states and 137981 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:30,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:30,185 INFO L93 Difference]: Finished difference Result 61347 states and 327605 transitions. [2022-03-03 18:48:30,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:30,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:30,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:30,534 INFO L225 Difference]: With dead ends: 61347 [2022-03-03 18:48:30,534 INFO L226 Difference]: Without dead ends: 59388 [2022-03-03 18:48:30,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:30,534 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 338 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:30,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 279 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 18:48:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59388 states. [2022-03-03 18:48:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59388 to 24564. [2022-03-03 18:48:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24564 states, 24563 states have (on average 5.589097422953222) internal successors, (137285), 24563 states have internal predecessors, (137285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24564 states to 24564 states and 137285 transitions. [2022-03-03 18:48:32,100 INFO L78 Accepts]: Start accepts. Automaton has 24564 states and 137285 transitions. Word has length 33 [2022-03-03 18:48:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:32,100 INFO L470 AbstractCegarLoop]: Abstraction has 24564 states and 137285 transitions. [2022-03-03 18:48:32,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 24564 states and 137285 transitions. [2022-03-03 18:48:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:32,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:32,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 18:48:32,164 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1368277469, now seen corresponding path program 131 times [2022-03-03 18:48:32,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:32,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117793609] [2022-03-03 18:48:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:32,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:32,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117793609] [2022-03-03 18:48:32,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117793609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:32,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:32,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:32,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263807482] [2022-03-03 18:48:32,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:32,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:32,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:32,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:32,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:32,380 INFO L87 Difference]: Start difference. First operand 24564 states and 137285 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:33,470 INFO L93 Difference]: Finished difference Result 61835 states and 330417 transitions. [2022-03-03 18:48:33,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:33,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:33,783 INFO L225 Difference]: With dead ends: 61835 [2022-03-03 18:48:33,783 INFO L226 Difference]: Without dead ends: 59812 [2022-03-03 18:48:33,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:33,783 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 337 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:33,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 313 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 18:48:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59812 states. [2022-03-03 18:48:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59812 to 24780. [2022-03-03 18:48:35,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24780 states, 24779 states have (on average 5.579603696678639) internal successors, (138257), 24779 states have internal predecessors, (138257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24780 states to 24780 states and 138257 transitions. [2022-03-03 18:48:35,277 INFO L78 Accepts]: Start accepts. Automaton has 24780 states and 138257 transitions. Word has length 33 [2022-03-03 18:48:35,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:35,277 INFO L470 AbstractCegarLoop]: Abstraction has 24780 states and 138257 transitions. [2022-03-03 18:48:35,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:35,278 INFO L276 IsEmpty]: Start isEmpty. Operand 24780 states and 138257 transitions. [2022-03-03 18:48:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:35,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:35,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:35,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 18:48:35,343 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 883352833, now seen corresponding path program 132 times [2022-03-03 18:48:35,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:35,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836356869] [2022-03-03 18:48:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:35,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:35,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:35,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836356869] [2022-03-03 18:48:35,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836356869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:35,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:35,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:35,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958503214] [2022-03-03 18:48:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:35,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:35,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:35,562 INFO L87 Difference]: Start difference. First operand 24780 states and 138257 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:36,718 INFO L93 Difference]: Finished difference Result 61627 states and 329041 transitions. [2022-03-03 18:48:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:37,397 INFO L225 Difference]: With dead ends: 61627 [2022-03-03 18:48:37,397 INFO L226 Difference]: Without dead ends: 59524 [2022-03-03 18:48:37,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:37,398 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 355 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:37,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 320 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 18:48:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59524 states. [2022-03-03 18:48:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59524 to 24492. [2022-03-03 18:48:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24492 states, 24491 states have (on average 5.59278918786493) internal successors, (136973), 24491 states have internal predecessors, (136973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24492 states to 24492 states and 136973 transitions. [2022-03-03 18:48:38,906 INFO L78 Accepts]: Start accepts. Automaton has 24492 states and 136973 transitions. Word has length 33 [2022-03-03 18:48:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:38,906 INFO L470 AbstractCegarLoop]: Abstraction has 24492 states and 136973 transitions. [2022-03-03 18:48:38,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 24492 states and 136973 transitions. [2022-03-03 18:48:39,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:39,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:39,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:39,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 18:48:39,065 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash -684496873, now seen corresponding path program 133 times [2022-03-03 18:48:39,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:39,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746198860] [2022-03-03 18:48:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:39,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:39,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746198860] [2022-03-03 18:48:39,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746198860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:39,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:39,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:39,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145096949] [2022-03-03 18:48:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:39,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:39,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:39,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:39,289 INFO L87 Difference]: Start difference. First operand 24492 states and 136973 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:40,462 INFO L93 Difference]: Finished difference Result 61682 states and 329356 transitions. [2022-03-03 18:48:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:40,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:40,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:40,795 INFO L225 Difference]: With dead ends: 61682 [2022-03-03 18:48:40,796 INFO L226 Difference]: Without dead ends: 59867 [2022-03-03 18:48:40,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:40,796 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 363 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:40,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 282 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59867 states. [2022-03-03 18:48:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59867 to 24740. [2022-03-03 18:48:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24740 states, 24739 states have (on average 5.58603823921743) internal successors, (138193), 24739 states have internal predecessors, (138193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24740 states to 24740 states and 138193 transitions. [2022-03-03 18:48:42,306 INFO L78 Accepts]: Start accepts. Automaton has 24740 states and 138193 transitions. Word has length 33 [2022-03-03 18:48:42,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:42,306 INFO L470 AbstractCegarLoop]: Abstraction has 24740 states and 138193 transitions. [2022-03-03 18:48:42,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:42,306 INFO L276 IsEmpty]: Start isEmpty. Operand 24740 states and 138193 transitions. [2022-03-03 18:48:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:42,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:42,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:42,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 18:48:42,372 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:42,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1580155011, now seen corresponding path program 134 times [2022-03-03 18:48:42,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:42,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996960017] [2022-03-03 18:48:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:42,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:42,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:42,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996960017] [2022-03-03 18:48:42,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996960017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:42,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:42,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:42,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248784324] [2022-03-03 18:48:42,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:42,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:42,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:42,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:42,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:42,595 INFO L87 Difference]: Start difference. First operand 24740 states and 138193 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:43,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:43,655 INFO L93 Difference]: Finished difference Result 61682 states and 329212 transitions. [2022-03-03 18:48:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:43,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:43,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:44,255 INFO L225 Difference]: With dead ends: 61682 [2022-03-03 18:48:44,255 INFO L226 Difference]: Without dead ends: 59723 [2022-03-03 18:48:44,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:44,255 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 375 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:44,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 294 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59723 states. [2022-03-03 18:48:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59723 to 24596. [2022-03-03 18:48:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24596 states, 24595 states have (on average 5.590445212441553) internal successors, (137497), 24595 states have internal predecessors, (137497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24596 states to 24596 states and 137497 transitions. [2022-03-03 18:48:45,554 INFO L78 Accepts]: Start accepts. Automaton has 24596 states and 137497 transitions. Word has length 33 [2022-03-03 18:48:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:45,554 INFO L470 AbstractCegarLoop]: Abstraction has 24596 states and 137497 transitions. [2022-03-03 18:48:45,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24596 states and 137497 transitions. [2022-03-03 18:48:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:45,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:45,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:45,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 18:48:45,927 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1236249611, now seen corresponding path program 135 times [2022-03-03 18:48:45,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:45,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926559578] [2022-03-03 18:48:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:46,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:46,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926559578] [2022-03-03 18:48:46,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926559578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:46,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:46,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:46,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732112561] [2022-03-03 18:48:46,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:46,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:46,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:46,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:46,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:46,232 INFO L87 Difference]: Start difference. First operand 24596 states and 137497 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:47,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:47,441 INFO L93 Difference]: Finished difference Result 62197 states and 331923 transitions. [2022-03-03 18:48:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:47,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:47,783 INFO L225 Difference]: With dead ends: 62197 [2022-03-03 18:48:47,783 INFO L226 Difference]: Without dead ends: 60382 [2022-03-03 18:48:47,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:47,784 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 340 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:47,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 317 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60382 states. [2022-03-03 18:48:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60382 to 24880. [2022-03-03 18:48:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24880 states, 24879 states have (on average 5.579042566019535) internal successors, (138801), 24879 states have internal predecessors, (138801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24880 states to 24880 states and 138801 transitions. [2022-03-03 18:48:49,373 INFO L78 Accepts]: Start accepts. Automaton has 24880 states and 138801 transitions. Word has length 33 [2022-03-03 18:48:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:49,373 INFO L470 AbstractCegarLoop]: Abstraction has 24880 states and 138801 transitions. [2022-03-03 18:48:49,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 24880 states and 138801 transitions. [2022-03-03 18:48:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:49,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:49,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:49,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 18:48:49,439 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1403566633, now seen corresponding path program 136 times [2022-03-03 18:48:49,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:49,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871907635] [2022-03-03 18:48:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:49,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:48:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:48:49,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:48:49,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871907635] [2022-03-03 18:48:49,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871907635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:48:49,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:48:49,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 18:48:49,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136131088] [2022-03-03 18:48:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:48:49,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 18:48:49,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:48:49,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 18:48:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-03 18:48:49,659 INFO L87 Difference]: Start difference. First operand 24880 states and 138801 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:48:50,717 INFO L93 Difference]: Finished difference Result 62572 states and 333586 transitions. [2022-03-03 18:48:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 18:48:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-03-03 18:48:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:48:51,341 INFO L225 Difference]: With dead ends: 62572 [2022-03-03 18:48:51,342 INFO L226 Difference]: Without dead ends: 60098 [2022-03-03 18:48:51,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-03-03 18:48:51,342 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 354 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 18:48:51,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 290 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 18:48:51,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60098 states. [2022-03-03 18:48:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60098 to 24596. [2022-03-03 18:48:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24596 states, 24595 states have (on average 5.586216710713559) internal successors, (137393), 24595 states have internal predecessors, (137393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24596 states to 24596 states and 137393 transitions. [2022-03-03 18:48:52,645 INFO L78 Accepts]: Start accepts. Automaton has 24596 states and 137393 transitions. Word has length 33 [2022-03-03 18:48:52,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:48:52,645 INFO L470 AbstractCegarLoop]: Abstraction has 24596 states and 137393 transitions. [2022-03-03 18:48:52,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:48:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 24596 states and 137393 transitions. [2022-03-03 18:48:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-03 18:48:52,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:48:52,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:48:52,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 18:48:52,713 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2022-03-03 18:48:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:48:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1945040765, now seen corresponding path program 137 times [2022-03-03 18:48:52,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:48:52,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911696543] [2022-03-03 18:48:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:48:52,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:48:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat