/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-17da818-m [2024-05-07 17:20:51,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-07 17:20:51,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-05-07 17:20:51,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-07 17:20:51,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-07 17:20:51,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-07 17:20:51,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-07 17:20:51,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-07 17:20:51,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-07 17:20:51,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-07 17:20:51,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-07 17:20:51,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-07 17:20:51,909 INFO L153 SettingsManager]: * Use SBE=true [2024-05-07 17:20:51,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-07 17:20:51,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-07 17:20:51,910 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-07 17:20:51,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-07 17:20:51,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-07 17:20:51,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-07 17:20:51,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-07 17:20:51,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-07 17:20:51,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-07 17:20:51,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-07 17:20:51,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-07 17:20:51,913 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-07 17:20:51,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-07 17:20:51,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-07 17:20:51,914 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-07 17:20:51,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-07 17:20:51,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-07 17:20:51,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-07 17:20:51,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-07 17:20:51,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-07 17:20:51,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-07 17:20:51,917 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-05-07 17:20:51,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-07 17:20:51,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-07 17:20:51,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-07 17:20:51,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-07 17:20:51,918 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 546 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-05-07 17:20:52,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-07 17:20:52,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-07 17:20:52,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-07 17:20:52,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-07 17:20:52,230 INFO L274 PluginConnector]: CDTParser initialized [2024-05-07 17:20:52,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2024-05-07 17:20:53,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-07 17:20:53,720 INFO L384 CDTParser]: Found 1 translation units. [2024-05-07 17:20:53,721 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2024-05-07 17:20:53,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a3cff5fb7/35b13c4dc90148dc8f0151bb0e9e5fd7/FLAGcb7dcf000 [2024-05-07 17:20:53,764 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a3cff5fb7/35b13c4dc90148dc8f0151bb0e9e5fd7 [2024-05-07 17:20:53,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-07 17:20:53,770 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-07 17:20:53,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-07 17:20:53,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-07 17:20:53,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-07 17:20:53,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.05 05:20:53" (1/1) ... [2024-05-07 17:20:53,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0872dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:53, skipping insertion in model container [2024-05-07 17:20:53,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.05 05:20:53" (1/1) ... [2024-05-07 17:20:53,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-07 17:20:54,473 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2024-05-07 17:20:54,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-07 17:20:54,497 INFO L202 MainTranslator]: Completed pre-run [2024-05-07 17:20:54,576 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2024-05-07 17:20:54,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-07 17:20:54,700 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-05-07 17:20:54,700 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-05-07 17:20:54,707 INFO L206 MainTranslator]: Completed translation [2024-05-07 17:20:54,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54 WrapperNode [2024-05-07 17:20:54,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-07 17:20:54,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-07 17:20:54,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-07 17:20:54,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-07 17:20:54,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,794 INFO L138 Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 285 [2024-05-07 17:20:54,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-07 17:20:54,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-07 17:20:54,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-07 17:20:54,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-07 17:20:54,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-07 17:20:54,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-07 17:20:54,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-07 17:20:54,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-07 17:20:54,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (1/1) ... [2024-05-07 17:20:54,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-07 17:20:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:54,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-07 17:20:54,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-07 17:20:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-07 17:20:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-07 17:20:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-07 17:20:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-07 17:20:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-07 17:20:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-05-07 17:20:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-05-07 17:20:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-07 17:20:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-07 17:20:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-07 17:20:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-07 17:20:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-07 17:20:54,952 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-07 17:20:55,288 INFO L241 CfgBuilder]: Building ICFG [2024-05-07 17:20:55,290 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-07 17:20:55,606 INFO L282 CfgBuilder]: Performing block encoding [2024-05-07 17:20:55,675 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-07 17:20:55,675 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2024-05-07 17:20:55,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:20:55 BoogieIcfgContainer [2024-05-07 17:20:55,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-07 17:20:55,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-07 17:20:55,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-07 17:20:55,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-07 17:20:55,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.05 05:20:53" (1/3) ... [2024-05-07 17:20:55,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595f848b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:20:55, skipping insertion in model container [2024-05-07 17:20:55,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.05 05:20:54" (2/3) ... [2024-05-07 17:20:55,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595f848b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:20:55, skipping insertion in model container [2024-05-07 17:20:55,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:20:55" (3/3) ... [2024-05-07 17:20:55,686 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-05-07 17:20:55,694 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-07 17:20:55,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-07 17:20:55,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-07 17:20:55,704 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-07 17:20:55,824 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-07 17:20:55,910 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-07 17:20:55,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-07 17:20:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:55,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-07 17:20:55,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-07 17:20:55,969 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-07 17:20:55,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:55,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-07 17:20:56,002 INFO L357 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42d0eccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-05-07 17:20:56,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-07 17:20:56,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 17:20:56,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash 498065153, now seen corresponding path program 1 times [2024-05-07 17:20:56,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:56,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502085010] [2024-05-07 17:20:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:56,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-07 17:20:56,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:20:56,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502085010] [2024-05-07 17:20:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502085010] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:20:56,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:20:56,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-07 17:20:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152464888] [2024-05-07 17:20:56,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:20:56,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-07 17:20:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:20:56,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:20:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-07 17:20:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:56,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:20:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:20:56,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:56,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-07 17:20:56,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 17:20:56,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash 16709349, now seen corresponding path program 1 times [2024-05-07 17:20:56,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:56,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074229322] [2024-05-07 17:20:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:56,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-07 17:20:57,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:20:57,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074229322] [2024-05-07 17:20:57,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074229322] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-07 17:20:57,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262197103] [2024-05-07 17:20:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:57,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:20:57,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:57,423 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-07 17:20:57,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-07 17:20:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:57,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-07 17:20:57,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-07 17:20:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-07 17:20:57,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-07 17:20:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-07 17:20:57,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262197103] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-07 17:20:57,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-07 17:20:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-05-07 17:20:57,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822354068] [2024-05-07 17:20:57,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-07 17:20:57,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-05-07 17:20:57,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:20:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-05-07 17:20:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-05-07 17:20:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:57,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:20:57,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:20:57,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:57,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:20:58,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-07 17:20:58,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-05-07 17:20:58,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-05-07 17:20:58,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:58,299 INFO L85 PathProgramCache]: Analyzing trace with hash 375572609, now seen corresponding path program 2 times [2024-05-07 17:20:58,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:58,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265399124] [2024-05-07 17:20:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:58,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 17:20:58,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-07 17:20:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 17:20:58,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-07 17:20:58,440 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-07 17:20:58,442 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-05-07 17:20:58,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-05-07 17:20:58,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-05-07 17:20:58,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-07 17:20:58,453 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1] [2024-05-07 17:20:58,455 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-07 17:20:58,455 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-05-07 17:20:58,544 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-07 17:20:58,550 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-07 17:20:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-07 17:20:58,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:58,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-07 17:20:58,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-05-07 17:20:58,558 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-07 17:20:58,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:58,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-07 17:20:58,559 INFO L357 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42d0eccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-05-07 17:20:58,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-05-07 17:20:58,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-07 17:20:58,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:58,605 INFO L85 PathProgramCache]: Analyzing trace with hash -751163060, now seen corresponding path program 1 times [2024-05-07 17:20:58,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:58,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691171970] [2024-05-07 17:20:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:58,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-07 17:20:58,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:20:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691171970] [2024-05-07 17:20:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691171970] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:20:58,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:20:58,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-07 17:20:58,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287896573] [2024-05-07 17:20:58,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:20:58,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-07 17:20:58,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:20:58,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:20:58,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-07 17:20:58,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:58,776 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:20:58,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:20:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:58,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-07 17:20:58,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-07 17:20:58,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:58,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1308617697, now seen corresponding path program 1 times [2024-05-07 17:20:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:58,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940535466] [2024-05-07 17:20:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:58,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-07 17:20:59,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:20:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940535466] [2024-05-07 17:20:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940535466] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-07 17:20:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631712009] [2024-05-07 17:20:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:59,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:20:59,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:59,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-07 17:20:59,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-07 17:20:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:20:59,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-07 17:20:59,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-07 17:20:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-07 17:20:59,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-07 17:20:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-05-07 17:20:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631712009] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-07 17:20:59,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-07 17:20:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-05-07 17:20:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295066841] [2024-05-07 17:20:59,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-07 17:20:59,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-05-07 17:20:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:20:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-05-07 17:20:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-05-07 17:20:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:59,417 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:20:59,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:20:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:59,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:20:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:20:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:20:59,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-07 17:20:59,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:20:59,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-07 17:20:59,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash 246364012, now seen corresponding path program 2 times [2024-05-07 17:20:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:20:59,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715216158] [2024-05-07 17:20:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:20:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:20:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 17:20:59,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-07 17:20:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-07 17:20:59,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-07 17:20:59,868 INFO L363 BasicCegarLoop]: Counterexample is feasible [2024-05-07 17:20:59,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-05-07 17:20:59,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-05-07 17:20:59,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-05-07 17:20:59,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-05-07 17:20:59,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-07 17:20:59,870 INFO L448 BasicCegarLoop]: Path program histogram: [2, 1] [2024-05-07 17:20:59,870 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-05-07 17:20:59,871 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-05-07 17:20:59,965 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-05-07 17:20:59,971 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-07 17:20:59,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-07 17:20:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:20:59,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-07 17:20:59,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-05-07 17:20:59,989 INFO L188 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-07 17:20:59,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:20:59,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-07 17:20:59,990 INFO L357 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42d0eccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-05-07 17:20:59,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-07 17:21:00,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:00,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1601437743, now seen corresponding path program 1 times [2024-05-07 17:21:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:00,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145362449] [2024-05-07 17:21:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:00,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-05-07 17:21:00,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:00,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145362449] [2024-05-07 17:21:00,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145362449] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:21:00,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:21:00,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-05-07 17:21:00,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450011131] [2024-05-07 17:21:00,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:21:00,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-07 17:21:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:00,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:21:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-07 17:21:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:00,187 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:00,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:00,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:00,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-07 17:21:00,240 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:00,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash -84754599, now seen corresponding path program 1 times [2024-05-07 17:21:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:00,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684208780] [2024-05-07 17:21:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-05-07 17:21:00,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:00,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684208780] [2024-05-07 17:21:00,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684208780] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:21:00,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:21:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-07 17:21:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994584444] [2024-05-07 17:21:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:21:00,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-07 17:21:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-07 17:21:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-07 17:21:00,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:00,419 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:00,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:00,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:00,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:00,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-05-07 17:21:00,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:00,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash 425806566, now seen corresponding path program 1 times [2024-05-07 17:21:00,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:00,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126602263] [2024-05-07 17:21:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-05-07 17:21:00,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:00,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126602263] [2024-05-07 17:21:00,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126602263] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-07 17:21:00,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878673194] [2024-05-07 17:21:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:00,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:21:00,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:21:00,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-07 17:21:00,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-05-07 17:21:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:01,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 6 conjunts are in the unsatisfiable core [2024-05-07 17:21:01,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-07 17:21:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-05-07 17:21:01,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-07 17:21:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-05-07 17:21:01,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878673194] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-07 17:21:01,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-07 17:21:01,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-05-07 17:21:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257371247] [2024-05-07 17:21:01,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-07 17:21:01,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-05-07 17:21:01,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:01,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-05-07 17:21:01,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-05-07 17:21:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:01,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:01,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.466666666666667) internal successors, (187), 15 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:01,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:01,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:01,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:01,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:01,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:01,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-05-07 17:21:01,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:21:01,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:01,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1116135330, now seen corresponding path program 2 times [2024-05-07 17:21:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:01,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745985734] [2024-05-07 17:21:01,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-07 17:21:02,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:02,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745985734] [2024-05-07 17:21:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745985734] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-07 17:21:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140625384] [2024-05-07 17:21:02,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-07 17:21:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:21:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:21:02,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-07 17:21:02,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-05-07 17:21:02,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-07 17:21:02,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-07 17:21:02,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 5 conjunts are in the unsatisfiable core [2024-05-07 17:21:02,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-07 17:21:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-07 17:21:02,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-05-07 17:21:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140625384] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:21:02,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-05-07 17:21:02,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-05-07 17:21:02,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644032377] [2024-05-07 17:21:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:21:02,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-05-07 17:21:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:02,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-05-07 17:21:02,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-05-07 17:21:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:02,404 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:02,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:02,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:02,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:02,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:02,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:21:02,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-05-07 17:21:02,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-05-07 17:21:02,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:02,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:02,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1467042918, now seen corresponding path program 1 times [2024-05-07 17:21:02,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:02,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210439480] [2024-05-07 17:21:02,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:02,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-05-07 17:21:02,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:02,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210439480] [2024-05-07 17:21:02,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210439480] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:21:02,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:21:02,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-07 17:21:02,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457030846] [2024-05-07 17:21:02,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:21:02,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-07 17:21:02,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-07 17:21:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-07 17:21:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:02,991 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:02,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:02,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:02,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:02,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:02,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:21:02,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:21:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:03,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-05-07 17:21:03,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:21:03,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:21:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1422583289, now seen corresponding path program 1 times [2024-05-07 17:21:03,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:21:03,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091759986] [2024-05-07 17:21:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:03,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-05-07 17:21:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:21:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091759986] [2024-05-07 17:21:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091759986] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-07 17:21:03,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-07 17:21:03,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-07 17:21:03,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894274666] [2024-05-07 17:21:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-07 17:21:03,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-07 17:21:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:21:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-07 17:21:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-07 17:21:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:03,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:21:03,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:21:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:21:03,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:03,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:21:03,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:21:03,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:21:03,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:21:04,696 INFO L349 Elim1Store]: treesize reduction 4, result has 73.3 percent of original size [2024-05-07 17:21:04,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 38 [2024-05-07 17:21:04,729 INFO L349 Elim1Store]: treesize reduction 38, result has 9.5 percent of original size [2024-05-07 17:21:04,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 35 [2024-05-07 17:21:19,776 INFO L85 PathProgramCache]: Analyzing trace with hash 796438676, now seen corresponding path program 1 times [2024-05-07 17:21:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:19,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-07 17:21:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:20,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-05-07 17:21:20,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:21:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-05-07 17:21:21,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-07 17:21:21,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 38 [2024-05-07 17:21:22,071 INFO L85 PathProgramCache]: Analyzing trace with hash -364753708, now seen corresponding path program 1 times [2024-05-07 17:21:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:22,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-05-07 17:21:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-05-07 17:21:23,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:21:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-05-07 17:21:24,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-05-07 17:21:24,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 38 [2024-05-07 17:21:24,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1401889259, now seen corresponding path program 1 times [2024-05-07 17:21:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:24,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-07 17:21:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:26,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-05-07 17:21:27,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-07 17:21:27,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2024-05-07 17:21:30,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-05-07 17:21:30,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 234 [2024-05-07 17:21:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1439119636, now seen corresponding path program 1 times [2024-05-07 17:21:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:30,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-05-07 17:21:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-05-07 17:21:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-05-07 17:21:33,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2988, Unknown=0, NotChecked=0, Total=3306 [2024-05-07 17:21:39,963 INFO L349 Elim1Store]: treesize reduction 30, result has 11.8 percent of original size [2024-05-07 17:21:39,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 27 [2024-05-07 17:21:39,977 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-05-07 17:21:39,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-05-07 17:21:44,879 INFO L85 PathProgramCache]: Analyzing trace with hash 685253431, now seen corresponding path program 1 times [2024-05-07 17:21:44,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:44,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-05-07 17:21:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-05-07 17:21:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-07 17:21:45,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3355, Invalid=22727, Unknown=0, NotChecked=0, Total=26082 [2024-05-07 17:21:48,799 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-05-07 17:21:48,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-05-07 17:21:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash -718194205, now seen corresponding path program 1 times [2024-05-07 17:21:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:48,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2024-05-07 17:21:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:21:52,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:21:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:21:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2024-05-07 17:21:55,894 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-05-07 17:21:55,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2024-05-07 17:21:55,928 INFO L349 Elim1Store]: treesize reduction 30, result has 11.8 percent of original size [2024-05-07 17:21:55,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 27 [2024-05-07 17:22:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1420927183, now seen corresponding path program 2 times [2024-05-07 17:22:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1700 trivial. 0 not checked. [2024-05-07 17:22:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:05,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1700 trivial. 0 not checked. [2024-05-07 17:22:08,787 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-05-07 17:22:08,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2024-05-07 17:22:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1443251928, now seen corresponding path program 3 times [2024-05-07 17:22:08,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:08,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2024-05-07 17:22:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2024-05-07 17:22:16,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2024-05-07 17:22:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2086808027, now seen corresponding path program 4 times [2024-05-07 17:22:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1716 trivial. 0 not checked. [2024-05-07 17:22:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:22,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1716 trivial. 0 not checked. [2024-05-07 17:22:27,192 INFO L349 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2024-05-07 17:22:27,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 76 [2024-05-07 17:22:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1171544644, now seen corresponding path program 5 times [2024-05-07 17:22:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:34,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1743 trivial. 0 not checked. [2024-05-07 17:22:38,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:38,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1743 trivial. 0 not checked. [2024-05-07 17:22:43,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-05-07 17:22:43,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 280 [2024-05-07 17:22:43,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1384966689, now seen corresponding path program 1 times [2024-05-07 17:22:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:43,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1816 trivial. 0 not checked. [2024-05-07 17:22:48,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:22:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:22:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:22:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1816 trivial. 0 not checked. [2024-05-07 17:22:53,282 INFO L349 Elim1Store]: treesize reduction 33, result has 58.2 percent of original size [2024-05-07 17:22:53,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 93 [2024-05-07 17:23:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash -84749663, now seen corresponding path program 2 times [2024-05-07 17:23:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2024-05-07 17:23:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:05,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1883 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2024-05-07 17:23:10,546 INFO L349 Elim1Store]: treesize reduction 7, result has 36.4 percent of original size [2024-05-07 17:23:10,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2024-05-07 17:23:10,625 INFO L85 PathProgramCache]: Analyzing trace with hash -437190385, now seen corresponding path program 3 times [2024-05-07 17:23:10,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:10,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2183 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2024-05-07 17:23:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:16,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2183 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2024-05-07 17:23:23,477 INFO L349 Elim1Store]: treesize reduction 30, result has 11.8 percent of original size [2024-05-07 17:23:23,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 27 [2024-05-07 17:23:23,492 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-05-07 17:23:23,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-05-07 17:23:28,687 INFO L85 PathProgramCache]: Analyzing trace with hash -565084898, now seen corresponding path program 4 times [2024-05-07 17:23:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:28,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2201 trivial. 0 not checked. [2024-05-07 17:23:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:34,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2201 trivial. 0 not checked. [2024-05-07 17:23:40,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2024-05-07 17:23:40,939 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-05-07 17:23:40,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2282 treesize of output 1 [2024-05-07 17:23:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1295547433, now seen corresponding path program 5 times [2024-05-07 17:23:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:41,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2216 trivial. 0 not checked. [2024-05-07 17:23:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2216 trivial. 0 not checked. [2024-05-07 17:23:52,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-05-07 17:23:52,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 135 [2024-05-07 17:23:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1853989636, now seen corresponding path program 6 times [2024-05-07 17:23:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:52,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:23:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2307 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2024-05-07 17:23:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:23:59,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:23:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2307 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2267 trivial. 0 not checked. [2024-05-07 17:24:05,510 INFO L349 Elim1Store]: treesize reduction 30, result has 11.8 percent of original size [2024-05-07 17:24:05,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 27 [2024-05-07 17:24:05,529 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-05-07 17:24:05,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2270 treesize of output 1 [2024-05-07 17:24:05,550 INFO L349 Elim1Store]: treesize reduction 30, result has 11.8 percent of original size [2024-05-07 17:24:05,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 75 [2024-05-07 17:24:05,578 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-05-07 17:24:05,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-05-07 17:24:05,598 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2024-05-07 17:24:05,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1844 treesize of output 1 [2024-05-07 17:24:09,093 INFO L85 PathProgramCache]: Analyzing trace with hash 736286357, now seen corresponding path program 7 times [2024-05-07 17:24:09,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:09,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:24:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2228 trivial. 0 not checked. [2024-05-07 17:24:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:24:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2228 trivial. 0 not checked. [2024-05-07 17:24:22,187 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-05-07 17:24:22,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2024-05-07 17:24:22,230 INFO L349 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2024-05-07 17:24:22,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 104 [2024-05-07 17:24:22,260 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2024-05-07 17:24:22,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 1 [2024-05-07 17:24:22,279 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-05-07 17:24:22,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1226 treesize of output 1 [2024-05-07 17:24:22,298 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2024-05-07 17:24:22,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1852 treesize of output 1 [2024-05-07 17:24:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -467376253, now seen corresponding path program 8 times [2024-05-07 17:24:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:24:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2242 trivial. 0 not checked. [2024-05-07 17:24:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:35,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:24:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 2242 trivial. 0 not checked. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:24:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:24:41,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable32,SelfDestructingSolverStorable11,SelfDestructingSolverStorable33,SelfDestructingSolverStorable12,SelfDestructingSolverStorable34,SelfDestructingSolverStorable13,SelfDestructingSolverStorable35,SelfDestructingSolverStorable14,SelfDestructingSolverStorable36,SelfDestructingSolverStorable15,SelfDestructingSolverStorable37,SelfDestructingSolverStorable16,SelfDestructingSolverStorable38,SelfDestructingSolverStorable17,SelfDestructingSolverStorable39,SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable20,SelfDestructingSolverStorable42,SelfDestructingSolverStorable29,SelfDestructingSolverStorable21,SelfDestructingSolverStorable43,SelfDestructingSolverStorable22,SelfDestructingSolverStorable44,SelfDestructingSolverStorable23,SelfDestructingSolverStorable45,SelfDestructingSolverStorable24,SelfDestructingSolverStorable46,SelfDestructingSolverStorable25,SelfDestructingSolverStorable47,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2024-05-07 17:24:41,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-07 17:24:41,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-07 17:24:41,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1944483615, now seen corresponding path program 1 times [2024-05-07 17:24:41,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-07 17:24:41,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293344013] [2024-05-07 17:24:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:41,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-07 17:24:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 2490 proven. 22 refuted. 0 times theorem prover too weak. 25256 trivial. 0 not checked. [2024-05-07 17:24:47,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-07 17:24:47,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293344013] [2024-05-07 17:24:47,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293344013] provided 0 perfect and 1 imperfect interpolant sequences [2024-05-07 17:24:47,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468772376] [2024-05-07 17:24:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-07 17:24:47,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-07 17:24:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-07 17:24:47,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-07 17:24:47,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-05-07 17:24:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-07 17:24:50,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 9050 conjuncts, 28 conjunts are in the unsatisfiable core [2024-05-07 17:24:50,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-07 17:24:51,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-05-07 17:24:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 2448 proven. 33 refuted. 0 times theorem prover too weak. 25287 trivial. 0 not checked. [2024-05-07 17:24:51,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-07 17:24:52,166 INFO L349 Elim1Store]: treesize reduction 4, result has 69.2 percent of original size [2024-05-07 17:24:52,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-05-07 17:24:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 2462 proven. 19 refuted. 0 times theorem prover too weak. 25287 trivial. 0 not checked. [2024-05-07 17:24:52,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468772376] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-07 17:24:52,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-05-07 17:24:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13] total 27 [2024-05-07 17:24:52,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644969696] [2024-05-07 17:24:52,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-05-07 17:24:52,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-05-07 17:24:52,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-07 17:24:52,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-05-07 17:24:52,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2024-05-07 17:24:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-07 17:24:52,250 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-07 17:24:52,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 27.85185185185185) internal successors, (752), 27 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-07 17:24:52,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:24:52,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-05-07 17:24:52,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-05-07 17:24:52,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-05-07 17:24:52,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:24:52,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-05-07 17:24:52,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.