/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 09:16:46,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 09:16:46,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 09:16:46,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 09:16:46,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 09:16:46,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 09:16:46,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 09:16:46,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 09:16:46,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 09:16:46,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 09:16:46,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 09:16:46,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 09:16:46,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 09:16:46,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 09:16:46,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 09:16:46,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 09:16:46,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 09:16:46,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 09:16:46,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 09:16:46,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 09:16:46,347 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-MCRwithoutDepranks-Lazy.epf [2022-03-02 09:16:46,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 09:16:46,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 09:16:46,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 09:16:46,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 09:16:46,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 09:16:46,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 09:16:46,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 09:16:46,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 09:16:46,377 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 09:16:46,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 09:16:46,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 09:16:46,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 09:16:46,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 09:16:46,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 09:16:46,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 09:16:46,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 09:16:46,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:16:46,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 09:16:46,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 09:16:46,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 09:16:46,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 09:16:46,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 09:16:46,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 09:16:46,381 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 09:16:46,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 09:16:46,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 09:16:46,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 09:16:46,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 09:16:46,623 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 09:16:46,628 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 09:16:46,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2022-03-02 09:16:46,629 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2022-03-02 09:16:46,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 09:16:46,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 09:16:46,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 09:16:46,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 09:16:46,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 09:16:46,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,681 INFO L137 Inliner]: procedures = 11, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 09:16:46,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 09:16:46,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 09:16:46,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 09:16:46,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 09:16:46,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 09:16:46,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 09:16:46,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 09:16:46,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 09:16:46,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/1) ... [2022-03-02 09:16:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 09:16:46,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:16:46,745 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) [2022-03-02 09:16:46,759 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 [2022-03-02 09:16:46,777 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-02 09:16:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-02 09:16:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-02 09:16:46,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-02 09:16:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-02 09:16:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-02 09:16:46,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-02 09:16:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-02 09:16:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-02 09:16:46,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-02 09:16:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-02 09:16:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-02 09:16:46,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-02 09:16:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-02 09:16:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-02 09:16:46,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-03-02 09:16:46,779 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-03-02 09:16:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-03-02 09:16:46,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 09:16:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 09:16:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 09:16:46,780 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-02 09:16:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-02 09:16:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-02 09:16:46,780 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-02 09:16:46,780 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-02 09:16:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-02 09:16:46,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-02 09:16:46,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-02 09:16:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-02 09:16:46,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-03-02 09:16:46,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-03-02 09:16:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-03-02 09:16:46,782 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 09:16:46,822 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 09:16:46,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 09:16:46,897 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 09:16:46,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 09:16:46,903 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 09:16:46,905 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:16:46 BoogieIcfgContainer [2022-03-02 09:16:46,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 09:16:46,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 09:16:46,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 09:16:46,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 09:16:46,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 09:16:46" (1/2) ... [2022-03-02 09:16:46,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b1eb5 and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 09:16:46, skipping insertion in model container [2022-03-02 09:16:46,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 09:16:46" (2/2) ... [2022-03-02 09:16:46,918 INFO L111 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2022-03-02 09:16:46,926 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 09:16:46,926 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 09:16:46,926 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 09:16:46,926 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 09:16:47,036 INFO L148 ThreadInstanceAdder]: Constructed 100 joinOtherThreadTransitions. [2022-03-02 09:16:47,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 09:16:47,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 09:16:47,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 09:16:47,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 09:16:47,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 09:16:47,127 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 [2022-03-02 09:16:47,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-03-02 09:16:47,396 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:47,398 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash 139453267, now seen corresponding path program 1 times [2022-03-02 09:16:47,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:47,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674524246] [2022-03-02 09:16:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:47,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:47,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:47,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674524246] [2022-03-02 09:16:47,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674524246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:47,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:47,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:16:47,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746273939] [2022-03-02 09:16:47,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:47,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:16:47,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:16:47,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:16:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:47,608 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:47,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:47,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:47,727 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:47,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 09:16:47,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:47,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash 789810861, now seen corresponding path program 1 times [2022-03-02 09:16:47,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:47,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418544516] [2022-03-02 09:16:47,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:47,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:47,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:47,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418544516] [2022-03-02 09:16:47,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418544516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:47,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:47,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:16:47,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609833523] [2022-03-02 09:16:47,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:47,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:16:47,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:16:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:16:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:47,778 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:47,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:47,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:47,938 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 09:16:47,940 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:47,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:47,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1641330131, now seen corresponding path program 1 times [2022-03-02 09:16:47,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:47,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912832168] [2022-03-02 09:16:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:47,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:47,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912832168] [2022-03-02 09:16:47,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912832168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:47,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:47,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:16:47,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581328041] [2022-03-02 09:16:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:47,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:16:47,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:16:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:16:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:47,994 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:47,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:47,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:48,093 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-02 09:16:48,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1908934667, now seen corresponding path program 1 times [2022-03-02 09:16:48,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:48,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663701753] [2022-03-02 09:16:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:48,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:48,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:48,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663701753] [2022-03-02 09:16:48,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663701753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:48,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:48,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:16:48,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469325520] [2022-03-02 09:16:48,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:48,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:16:48,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:48,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:16:48,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:16:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:48,156 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:48,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:48,246 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-02 09:16:48,247 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1050060137, now seen corresponding path program 1 times [2022-03-02 09:16:48,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:48,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574750287] [2022-03-02 09:16:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:48,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:48,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:48,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574750287] [2022-03-02 09:16:48,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574750287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:48,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:48,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 09:16:48,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341039981] [2022-03-02 09:16:48,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:48,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 09:16:48,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:48,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 09:16:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 09:16:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:48,323 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:48,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:48,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:48,415 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 311 transitions and produced 312 states. [2022-03-02 09:16:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:48,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 09:16:48,417 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-02 09:16:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 09:16:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash -162586247, now seen corresponding path program 1 times [2022-03-02 09:16:48,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 09:16:48,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231357365] [2022-03-02 09:16:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 09:16:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 09:16:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 09:16:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 09:16:49,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 09:16:49,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231357365] [2022-03-02 09:16:49,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231357365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 09:16:49,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 09:16:49,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-02 09:16:49,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680335276] [2022-03-02 09:16:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 09:16:49,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-02 09:16:49,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 09:16:49,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-02 09:16:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-03-02 09:16:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 09:16:49,185 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 09:16:49,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 09:16:49,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:49,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:49,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:49,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:49,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 09:16:49,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.