/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:55:30,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:55:30,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 15:55:30,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:55:30,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:55:30,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:55:30,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:55:30,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:55:30,375 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:55:30,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:55:30,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:55:30,376 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:55:30,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:55:30,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:55:30,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:55:30,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:55:30,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:55:30,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:55:30,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:55:30,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:55:30,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:55:30,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:55:30,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:55:30,379 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:55:30,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:55:30,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:55:30,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:55:30,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:55:30,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:55:30,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:55:30,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:55:30,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:55:30,381 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/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:55:30,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:55:30,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:55:30,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:55:30,555 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:55:30,555 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:55:30,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-11-17 15:55:31,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:55:31,748 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:55:31,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-11-17 15:55:31,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1947ef4e4/a716cc716a91490da80a608502730b99/FLAGcf37c2703 [2023-11-17 15:55:31,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1947ef4e4/a716cc716a91490da80a608502730b99 [2023-11-17 15:55:31,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:55:31,770 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:55:31,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:55:31,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:55:31,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:55:31,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:55:31" (1/1) ... [2023-11-17 15:55:31,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cebf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:31, skipping insertion in model container [2023-11-17 15:55:31,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:55:31" (1/1) ... [2023-11-17 15:55:31,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:55:31,980 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19288,19301] [2023-11-17 15:55:31,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:55:31,994 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:55:32,076 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19288,19301] [2023-11-17 15:55:32,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:55:32,088 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:55:32,088 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:55:32,093 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:55:32,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32 WrapperNode [2023-11-17 15:55:32,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:55:32,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:55:32,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:55:32,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:55:32,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,194 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2378 [2023-11-17 15:55:32,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:55:32,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:55:32,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:55:32,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:55:32,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:55:32,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:55:32,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:55:32,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:55:32,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (1/1) ... [2023-11-17 15:55:32,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:55:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:55:32,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 15:55:32,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 15:55:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:55:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:55:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:55:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 15:55:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 15:55:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 15:55:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 15:55:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 15:55:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:55:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:55:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:55:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:55:32,386 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:55:32,589 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:55:32,590 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:55:34,097 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:55:35,881 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:55:35,881 INFO L307 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-17 15:55:35,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:55:35 BoogieIcfgContainer [2023-11-17 15:55:35,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:55:35,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:55:35,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:55:35,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:55:35,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:55:31" (1/3) ... [2023-11-17 15:55:35,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d932ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:55:35, skipping insertion in model container [2023-11-17 15:55:35,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:55:32" (2/3) ... [2023-11-17 15:55:35,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d932ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:55:35, skipping insertion in model container [2023-11-17 15:55:35,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:55:35" (3/3) ... [2023-11-17 15:55:35,889 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2023-11-17 15:55:35,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:55:35,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:55:35,902 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:55:36,277 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-17 15:55:36,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 732 places, 801 transitions, 1623 flow [2023-11-17 15:55:36,593 INFO L124 PetriNetUnfolderBase]: 79/798 cut-off events. [2023-11-17 15:55:36,594 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:55:36,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 798 events. 79/798 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 940 event pairs, 0 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 715. Up to 7 conditions per place. [2023-11-17 15:55:36,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 732 places, 801 transitions, 1623 flow [2023-11-17 15:55:36,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 718 places, 787 transitions, 1592 flow [2023-11-17 15:55:36,608 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:55:36,616 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 718 places, 787 transitions, 1592 flow [2023-11-17 15:55:36,618 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 718 places, 787 transitions, 1592 flow [2023-11-17 15:55:36,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 718 places, 787 transitions, 1592 flow [2023-11-17 15:55:36,736 INFO L124 PetriNetUnfolderBase]: 79/787 cut-off events. [2023-11-17 15:55:36,736 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:55:36,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 787 events. 79/787 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 934 event pairs, 0 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 715. Up to 7 conditions per place. [2023-11-17 15:55:36,749 INFO L119 LiptonReduction]: Number of co-enabled transitions 22606 [2023-11-17 15:56:42,840 INFO L134 LiptonReduction]: Checked pairs total: 23621 [2023-11-17 15:56:42,841 INFO L136 LiptonReduction]: Total number of compositions: 940 [2023-11-17 15:56:42,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:56:42,860 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=false, mAutomataTypeConcurrency=PETRI_NET, 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;@11f38a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:56:42,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 15:56:42,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:56:42,912 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-11-17 15:56:42,912 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:56:42,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:56:42,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:56:42,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:56:42,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:56:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1330314312, now seen corresponding path program 1 times [2023-11-17 15:56:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:56:42,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104939327] [2023-11-17 15:56:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:42,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:56:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:56:43,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:56:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104939327] [2023-11-17 15:56:43,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104939327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:56:43,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:56:43,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:56:43,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155147142] [2023-11-17 15:56:43,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:56:43,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:56:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:56:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:56:43,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:56:43,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 1741 [2023-11-17 15:56:43,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:43,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:56:43,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 1741 [2023-11-17 15:56:43,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:56:45,120 INFO L124 PetriNetUnfolderBase]: 873/1099 cut-off events. [2023-11-17 15:56:45,121 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-17 15:56:45,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1099 events. 873/1099 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2574 event pairs, 333 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-11-17 15:56:45,125 INFO L140 encePairwiseOnDemand]: 1734/1741 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-11-17 15:56:45,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 262 flow [2023-11-17 15:56:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:56:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:56:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1750 transitions. [2023-11-17 15:56:45,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3350564809496458 [2023-11-17 15:56:45,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1750 transitions. [2023-11-17 15:56:45,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1750 transitions. [2023-11-17 15:56:45,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:56:45,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1750 transitions. [2023-11-17 15:56:45,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:45,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1741.0) internal successors, (6964), 4 states have internal predecessors, (6964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:45,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1741.0) internal successors, (6964), 4 states have internal predecessors, (6964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:45,169 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1750 transitions. [2023-11-17 15:56:45,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 262 flow [2023-11-17 15:56:45,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-17 15:56:45,175 INFO L231 Difference]: Finished difference. Result has 41 places, 61 transitions, 154 flow [2023-11-17 15:56:45,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1741, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=41, PETRI_TRANSITIONS=61} [2023-11-17 15:56:45,179 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-11-17 15:56:45,180 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 61 transitions, 154 flow [2023-11-17 15:56:45,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:45,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:56:45,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:56:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:56:45,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:56:45,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:56:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash 747306861, now seen corresponding path program 1 times [2023-11-17 15:56:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:56:45,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411760646] [2023-11-17 15:56:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:56:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:56:45,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:56:45,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411760646] [2023-11-17 15:56:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411760646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:56:45,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:56:45,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:56:45,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786804403] [2023-11-17 15:56:45,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:56:45,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:56:45,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:56:45,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:56:45,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:56:45,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 1741 [2023-11-17 15:56:45,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:45,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:56:45,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 1741 [2023-11-17 15:56:45,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:56:46,912 INFO L124 PetriNetUnfolderBase]: 873/1105 cut-off events. [2023-11-17 15:56:46,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:56:46,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 1105 events. 873/1105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2609 event pairs, 333 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 2217. Up to 1100 conditions per place. [2023-11-17 15:56:46,916 INFO L140 encePairwiseOnDemand]: 1728/1741 looper letters, 55 selfloop transitions, 12 changer transitions 0/67 dead transitions. [2023-11-17 15:56:46,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 67 transitions, 300 flow [2023-11-17 15:56:46,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:56:46,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:56:46,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1756 transitions. [2023-11-17 15:56:46,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33620524602718743 [2023-11-17 15:56:46,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1756 transitions. [2023-11-17 15:56:46,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1756 transitions. [2023-11-17 15:56:46,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:56:46,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1756 transitions. [2023-11-17 15:56:46,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:46,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1741.0) internal successors, (6964), 4 states have internal predecessors, (6964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:46,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1741.0) internal successors, (6964), 4 states have internal predecessors, (6964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:46,933 INFO L175 Difference]: Start difference. First operand has 41 places, 61 transitions, 154 flow. Second operand 3 states and 1756 transitions. [2023-11-17 15:56:46,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 67 transitions, 300 flow [2023-11-17 15:56:46,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:56:46,935 INFO L231 Difference]: Finished difference. Result has 43 places, 67 transitions, 210 flow [2023-11-17 15:56:46,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1741, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=43, PETRI_TRANSITIONS=67} [2023-11-17 15:56:46,936 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-11-17 15:56:46,936 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 67 transitions, 210 flow [2023-11-17 15:56:46,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:46,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:56:46,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:56:46,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:56:46,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:56:46,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:56:46,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1534431828, now seen corresponding path program 1 times [2023-11-17 15:56:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:56:46,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187044930] [2023-11-17 15:56:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:56:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 15:56:47,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:56:47,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187044930] [2023-11-17 15:56:47,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187044930] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:56:47,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294660189] [2023-11-17 15:56:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:47,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:56:47,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:56:47,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:56:47,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:56:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:48,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-17 15:56:48,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:56:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 15:56:48,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:56:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 15:56:48,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294660189] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:56:48,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:56:48,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-11-17 15:56:48,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116446769] [2023-11-17 15:56:48,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:56:48,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 15:56:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:56:48,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 15:56:48,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-17 15:56:48,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 1741 [2023-11-17 15:56:48,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 67 transitions, 210 flow. Second operand has 8 states, 8 states have (on average 567.625) internal successors, (4541), 8 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:48,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:56:48,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 1741 [2023-11-17 15:56:48,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:56:49,822 INFO L124 PetriNetUnfolderBase]: 873/1132 cut-off events. [2023-11-17 15:56:49,822 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-17 15:56:49,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 1132 events. 873/1132 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2609 event pairs, 333 based on Foata normal form. 9/607 useless extension candidates. Maximal degree in co-relation 2278. Up to 1097 conditions per place. [2023-11-17 15:56:49,826 INFO L140 encePairwiseOnDemand]: 1716/1741 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-11-17 15:56:49,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 94 transitions, 482 flow [2023-11-17 15:56:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 15:56:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 15:56:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4617 transitions. [2023-11-17 15:56:49,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3314905226881103 [2023-11-17 15:56:49,835 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4617 transitions. [2023-11-17 15:56:49,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4617 transitions. [2023-11-17 15:56:49,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:56:49,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4617 transitions. [2023-11-17 15:56:49,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 577.125) internal successors, (4617), 8 states have internal predecessors, (4617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:49,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1741.0) internal successors, (15669), 9 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:49,860 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1741.0) internal successors, (15669), 9 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:49,861 INFO L175 Difference]: Start difference. First operand has 43 places, 67 transitions, 210 flow. Second operand 8 states and 4617 transitions. [2023-11-17 15:56:49,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 94 transitions, 482 flow [2023-11-17 15:56:49,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 94 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:56:49,864 INFO L231 Difference]: Finished difference. Result has 50 places, 94 transitions, 428 flow [2023-11-17 15:56:49,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1741, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=428, PETRI_PLACES=50, PETRI_TRANSITIONS=94} [2023-11-17 15:56:49,866 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2023-11-17 15:56:49,866 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 94 transitions, 428 flow [2023-11-17 15:56:49,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 567.625) internal successors, (4541), 8 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:49,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:56:49,868 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:56:49,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:56:50,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:56:50,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:56:50,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:56:50,092 INFO L85 PathProgramCache]: Analyzing trace with hash -2131432582, now seen corresponding path program 1 times [2023-11-17 15:56:50,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:56:50,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716821149] [2023-11-17 15:56:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:56:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-17 15:56:50,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:56:50,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716821149] [2023-11-17 15:56:50,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716821149] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:56:50,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025797083] [2023-11-17 15:56:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:50,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:56:50,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:56:50,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:56:50,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 15:56:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:51,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-17 15:56:51,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:56:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-17 15:56:51,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:56:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-17 15:56:51,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025797083] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:56:51,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:56:51,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-11-17 15:56:51,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104114780] [2023-11-17 15:56:51,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:56:51,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-17 15:56:51,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:56:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-17 15:56:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-17 15:56:51,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 1741 [2023-11-17 15:56:51,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 94 transitions, 428 flow. Second operand has 17 states, 17 states have (on average 565.3529411764706) internal successors, (9611), 17 states have internal predecessors, (9611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:51,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:56:51,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 1741 [2023-11-17 15:56:51,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:56:53,578 INFO L124 PetriNetUnfolderBase]: 873/1150 cut-off events. [2023-11-17 15:56:53,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:56:53,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1150 events. 873/1150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2567 event pairs, 333 based on Foata normal form. 11/627 useless extension candidates. Maximal degree in co-relation 2380. Up to 1097 conditions per place. [2023-11-17 15:56:53,583 INFO L140 encePairwiseOnDemand]: 1716/1741 looper letters, 46 selfloop transitions, 66 changer transitions 0/112 dead transitions. [2023-11-17 15:56:53,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 112 transitions, 754 flow [2023-11-17 15:56:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 15:56:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 15:56:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 9122 transitions. [2023-11-17 15:56:53,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32746984491671455 [2023-11-17 15:56:53,597 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 9122 transitions. [2023-11-17 15:56:53,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 9122 transitions. [2023-11-17 15:56:53,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:56:53,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 9122 transitions. [2023-11-17 15:56:53,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 570.125) internal successors, (9122), 16 states have internal predecessors, (9122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:53,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 1741.0) internal successors, (29597), 17 states have internal predecessors, (29597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:53,655 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 1741.0) internal successors, (29597), 17 states have internal predecessors, (29597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:53,656 INFO L175 Difference]: Start difference. First operand has 50 places, 94 transitions, 428 flow. Second operand 16 states and 9122 transitions. [2023-11-17 15:56:53,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 112 transitions, 754 flow [2023-11-17 15:56:53,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 112 transitions, 698 flow, removed 22 selfloop flow, removed 2 redundant places. [2023-11-17 15:56:53,663 INFO L231 Difference]: Finished difference. Result has 67 places, 112 transitions, 670 flow [2023-11-17 15:56:53,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1741, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=670, PETRI_PLACES=67, PETRI_TRANSITIONS=112} [2023-11-17 15:56:53,664 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 23 predicate places. [2023-11-17 15:56:53,665 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 112 transitions, 670 flow [2023-11-17 15:56:53,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 565.3529411764706) internal successors, (9611), 17 states have internal predecessors, (9611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:56:53,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:56:53,674 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:56:53,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-17 15:56:53,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-17 15:56:53,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:56:53,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:56:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash -155811712, now seen corresponding path program 2 times [2023-11-17 15:56:53,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:56:53,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613135092] [2023-11-17 15:56:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:56:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:56:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:56:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-11-17 15:56:54,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:56:54,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613135092] [2023-11-17 15:56:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613135092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:56:54,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230130344] [2023-11-17 15:56:54,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 15:56:54,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:56:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:56:54,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:56:54,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 15:56:55,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-17 15:56:55,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:56:55,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-17 15:56:55,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:57:01,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:01,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:57:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 15:58:14,450 WARN L293 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 4156 DAG size of output: 3363 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-17 15:58:14,452 INFO L349 Elim1Store]: treesize reduction 1808, result has 78.5 percent of original size [2023-11-17 15:58:14,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 4 disjoint index pairs (out of 946 index pairs), introduced 44 new quantified variables, introduced 986 case distinctions, treesize of input 1867 treesize of output 8143 Received shutdown request... [2023-11-17 16:04:54,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 16:04:54,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 16:04:55,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-17 16:04:55,040 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-17 16:04:55,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 16:04:55,041 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 83 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-11-17 16:04:55,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-17 16:04:55,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 16:04:55,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-17 16:04:55,042 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-17 16:04:55,045 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 16:04:55,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 16:04:55,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 04:04:55 BasicIcfg [2023-11-17 16:04:55,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 16:04:55,047 INFO L158 Benchmark]: Toolchain (without parser) took 563277.62ms. Allocated memory was 182.5MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 138.4MB in the beginning and 670.0MB in the end (delta: -531.7MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-11-17 16:04:55,047 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 16:04:55,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.43ms. Allocated memory is still 182.5MB. Free memory was 138.4MB in the beginning and 112.5MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-11-17 16:04:55,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.24ms. Allocated memory is still 182.5MB. Free memory was 112.5MB in the beginning and 100.6MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-17 16:04:55,048 INFO L158 Benchmark]: Boogie Preprocessor took 127.12ms. Allocated memory is still 182.5MB. Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-17 16:04:55,048 INFO L158 Benchmark]: RCFGBuilder took 3559.11ms. Allocated memory was 182.5MB in the beginning and 377.5MB in the end (delta: 195.0MB). Free memory was 89.4MB in the beginning and 278.8MB in the end (delta: -189.4MB). Peak memory consumption was 196.5MB. Max. memory is 8.0GB. [2023-11-17 16:04:55,048 INFO L158 Benchmark]: TraceAbstraction took 559161.96ms. Allocated memory was 377.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 278.2MB in the beginning and 670.0MB in the end (delta: -391.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-11-17 16:04:55,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 323.43ms. Allocated memory is still 182.5MB. Free memory was 138.4MB in the beginning and 112.5MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 100.24ms. Allocated memory is still 182.5MB. Free memory was 112.5MB in the beginning and 100.6MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 127.12ms. Allocated memory is still 182.5MB. Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 3559.11ms. Allocated memory was 182.5MB in the beginning and 377.5MB in the end (delta: 195.0MB). Free memory was 89.4MB in the beginning and 278.8MB in the end (delta: -189.4MB). Peak memory consumption was 196.5MB. Max. memory is 8.0GB. * TraceAbstraction took 559161.96ms. Allocated memory was 377.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 278.2MB in the beginning and 670.0MB in the end (delta: -391.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.2s, 718 PlacesBefore, 44 PlacesAfterwards, 787 TransitionsBefore, 58 TransitionsAfterwards, 22606 CoEnabledTransitionPairs, 8 FixpointIterations, 536 TrivialSequentialCompositions, 185 ConcurrentSequentialCompositions, 124 TrivialYvCompositions, 40 ConcurrentYvCompositions, 55 ChoiceCompositions, 940 TotalNumberOfCompositions, 23621 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22085, independent: 22044, independent conditional: 0, independent unconditional: 22044, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15664, independent: 15630, independent conditional: 0, independent unconditional: 15630, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15664, independent: 15630, independent conditional: 0, independent unconditional: 15630, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 283, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 283, dependent conditional: 0, dependent unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22085, independent: 6414, independent conditional: 0, independent unconditional: 6414, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 15664, unknown conditional: 0, unknown unconditional: 15664] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 344]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 83 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 337]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 83 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 83 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 338]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 83 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 866 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 558.7s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 66.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 818 IncrementalHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 190 mSolverCounterUnsat, 0 mSDtfsCounter, 818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=670occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 474 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1401 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 231/264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown