/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:49:55,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:49:55,289 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-VariableLbe.epf [2023-08-25 04:49:55,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:49:55,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:49:55,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:49:55,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:49:55,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:49:55,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:49:55,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:49:55,338 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:49:55,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:49:55,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:49:55,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:49:55,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:49:55,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:49:55,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:49:55,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:49:55,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:49:55,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:49:55,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:49:55,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:49:55,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:49:55,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:49:55,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:49:55,344 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:49:55,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:49:55,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:49:55,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:49:55,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:49:55,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:49:55,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:49:55,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:49:55,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:49:55,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:49:55,347 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:49:55,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:49:55,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:49:55,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:49:55,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:49:55,706 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:49:55,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-25 04:49:56,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:49:57,168 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:49:57,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-25 04:49:57,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfd6ca315/c9ed36c504344fa8b1f3cf9209451acb/FLAG448f45f73 [2023-08-25 04:49:57,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfd6ca315/c9ed36c504344fa8b1f3cf9209451acb [2023-08-25 04:49:57,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:49:57,198 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:49:57,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:49:57,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:49:57,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:49:57,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459ddb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57, skipping insertion in model container [2023-08-25 04:49:57,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,238 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:49:57,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:49:57,456 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:49:57,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:49:57,534 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:49:57,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57 WrapperNode [2023-08-25 04:49:57,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:49:57,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:49:57,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:49:57,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:49:57,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,616 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 470 [2023-08-25 04:49:57,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:49:57,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:49:57,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:49:57,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:49:57,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:49:57,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:49:57,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:49:57,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:49:57,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (1/1) ... [2023-08-25 04:49:57,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:49:57,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:49:57,730 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) [2023-08-25 04:49:57,740 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 [2023-08-25 04:49:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:49:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:49:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:49:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:49:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 04:49:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 04:49:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 04:49:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 04:49:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 04:49:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 04:49:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:49:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 04:49:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:49:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:49:57,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:49:57,769 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 04:49:57,890 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:49:57,891 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:49:58,574 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:49:58,590 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:49:58,591 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-25 04:49:58,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:49:58 BoogieIcfgContainer [2023-08-25 04:49:58,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:49:58,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:49:58,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:49:58,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:49:58,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:49:57" (1/3) ... [2023-08-25 04:49:58,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be08da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:49:58, skipping insertion in model container [2023-08-25 04:49:58,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:57" (2/3) ... [2023-08-25 04:49:58,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be08da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:49:58, skipping insertion in model container [2023-08-25 04:49:58,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:49:58" (3/3) ... [2023-08-25 04:49:58,602 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-25 04:49:58,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:49:58,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-08-25 04:49:58,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:49:58,765 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:49:58,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 563 transitions, 1150 flow [2023-08-25 04:49:59,008 INFO L124 PetriNetUnfolderBase]: 33/560 cut-off events. [2023-08-25 04:49:59,008 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 04:49:59,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 560 events. 33/560 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1255 event pairs, 0 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 401. Up to 2 conditions per place. [2023-08-25 04:49:59,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 540 places, 563 transitions, 1150 flow [2023-08-25 04:49:59,038 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 526 places, 549 transitions, 1116 flow [2023-08-25 04:49:59,042 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:49:59,052 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 526 places, 549 transitions, 1116 flow [2023-08-25 04:49:59,054 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 526 places, 549 transitions, 1116 flow [2023-08-25 04:49:59,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 549 transitions, 1116 flow [2023-08-25 04:49:59,152 INFO L124 PetriNetUnfolderBase]: 33/549 cut-off events. [2023-08-25 04:49:59,152 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 04:49:59,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 549 events. 33/549 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1253 event pairs, 0 based on Foata normal form. 0/468 useless extension candidates. Maximal degree in co-relation 401. Up to 2 conditions per place. [2023-08-25 04:49:59,192 INFO L119 LiptonReduction]: Number of co-enabled transitions 67830 [2023-08-25 04:50:10,958 INFO L134 LiptonReduction]: Checked pairs total: 215680 [2023-08-25 04:50:10,958 INFO L136 LiptonReduction]: Total number of compositions: 570 [2023-08-25 04:50:10,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:50:10,976 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1996d026, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:50:10,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2023-08-25 04:50:10,978 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:50:10,978 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-25 04:50:10,978 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:50:10,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:10,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 04:50:10,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:10,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 68890, now seen corresponding path program 1 times [2023-08-25 04:50:10,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:10,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456152121] [2023-08-25 04:50:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:10,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:50:11,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:11,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456152121] [2023-08-25 04:50:11,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456152121] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:11,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:11,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 04:50:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856755807] [2023-08-25 04:50:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:11,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:50:11,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:50:11,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:50:11,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1133 [2023-08-25 04:50:11,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 298 flow. Second operand has 2 states, 2 states have (on average 535.0) internal successors, (1070), 2 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:11,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1133 [2023-08-25 04:50:11,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:11,847 INFO L124 PetriNetUnfolderBase]: 1808/5292 cut-off events. [2023-08-25 04:50:11,847 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-08-25 04:50:11,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8026 conditions, 5292 events. 1808/5292 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49399 event pairs, 1485 based on Foata normal form. 148/4401 useless extension candidates. Maximal degree in co-relation 6878. Up to 2587 conditions per place. [2023-08-25 04:50:11,882 INFO L140 encePairwiseOnDemand]: 1106/1133 looper letters, 39 selfloop transitions, 0 changer transitions 0/113 dead transitions. [2023-08-25 04:50:11,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 322 flow [2023-08-25 04:50:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:50:11,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:50:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1134 transitions. [2023-08-25 04:50:11,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.500441306266549 [2023-08-25 04:50:11,903 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1134 transitions. [2023-08-25 04:50:11,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1134 transitions. [2023-08-25 04:50:11,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:11,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1134 transitions. [2023-08-25 04:50:11,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 567.0) internal successors, (1134), 2 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1133.0) internal successors, (3399), 3 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,922 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1133.0) internal successors, (3399), 3 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,923 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 298 flow. Second operand 2 states and 1134 transitions. [2023-08-25 04:50:11,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 322 flow [2023-08-25 04:50:11,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 113 transitions, 310 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 04:50:11,932 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 232 flow [2023-08-25 04:50:11,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=232, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2023-08-25 04:50:11,936 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -32 predicate places. [2023-08-25 04:50:11,937 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 232 flow [2023-08-25 04:50:11,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 535.0) internal successors, (1070), 2 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:11,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:11,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:50:11,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:11,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1879016999, now seen corresponding path program 1 times [2023-08-25 04:50:11,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:11,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303863328] [2023-08-25 04:50:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:50:12,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303863328] [2023-08-25 04:50:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303863328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:12,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:12,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937987391] [2023-08-25 04:50:12,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:12,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:12,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:12,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-25 04:50:12,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:12,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-25 04:50:12,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:12,669 INFO L124 PetriNetUnfolderBase]: 1808/5295 cut-off events. [2023-08-25 04:50:12,669 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-08-25 04:50:12,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7930 conditions, 5295 events. 1808/5295 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49426 event pairs, 1485 based on Foata normal form. 0/4256 useless extension candidates. Maximal degree in co-relation 7927. Up to 2587 conditions per place. [2023-08-25 04:50:12,704 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 36 selfloop transitions, 6 changer transitions 0/116 dead transitions. [2023-08-25 04:50:12,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 322 flow [2023-08-25 04:50:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1485 transitions. [2023-08-25 04:50:12,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4368932038834951 [2023-08-25 04:50:12,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1485 transitions. [2023-08-25 04:50:12,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1485 transitions. [2023-08-25 04:50:12,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:12,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1485 transitions. [2023-08-25 04:50:12,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.0) internal successors, (1485), 3 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,721 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 232 flow. Second operand 3 states and 1485 transitions. [2023-08-25 04:50:12,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 322 flow [2023-08-25 04:50:12,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 116 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:12,723 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 264 flow [2023-08-25 04:50:12,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2023-08-25 04:50:12,725 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2023-08-25 04:50:12,725 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 264 flow [2023-08-25 04:50:12,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:12,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:50:12,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:12,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash -641641421, now seen corresponding path program 1 times [2023-08-25 04:50:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222803287] [2023-08-25 04:50:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:12,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 04:50:12,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:12,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222803287] [2023-08-25 04:50:12,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222803287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:12,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:12,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:12,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671432737] [2023-08-25 04:50:12,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:12,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:12,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:12,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:12,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:12,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:50:12,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:12,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:50:12,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:13,363 INFO L124 PetriNetUnfolderBase]: 2310/6346 cut-off events. [2023-08-25 04:50:13,364 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-08-25 04:50:13,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9713 conditions, 6346 events. 2310/6346 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 58887 event pairs, 1347 based on Foata normal form. 0/5207 useless extension candidates. Maximal degree in co-relation 9708. Up to 3244 conditions per place. [2023-08-25 04:50:13,404 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 55 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2023-08-25 04:50:13,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 127 transitions, 402 flow [2023-08-25 04:50:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1631 transitions. [2023-08-25 04:50:13,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47984701382759637 [2023-08-25 04:50:13,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1631 transitions. [2023-08-25 04:50:13,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1631 transitions. [2023-08-25 04:50:13,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:13,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1631 transitions. [2023-08-25 04:50:13,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:13,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:13,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:13,421 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 264 flow. Second operand 3 states and 1631 transitions. [2023-08-25 04:50:13,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 127 transitions, 402 flow [2023-08-25 04:50:13,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 127 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:50:13,425 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 268 flow [2023-08-25 04:50:13,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2023-08-25 04:50:13,426 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2023-08-25 04:50:13,426 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 268 flow [2023-08-25 04:50:13,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:13,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:13,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:13,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:50:13,428 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:13,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1858517325, now seen corresponding path program 1 times [2023-08-25 04:50:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873965543] [2023-08-25 04:50:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 04:50:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873965543] [2023-08-25 04:50:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873965543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:13,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:13,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:13,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720967488] [2023-08-25 04:50:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:13,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:13,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:13,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:13,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:13,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:50:13,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 528.6666666666666) internal successors, (1586), 3 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:13,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:13,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:50:13,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:14,175 INFO L124 PetriNetUnfolderBase]: 2266/7286 cut-off events. [2023-08-25 04:50:14,175 INFO L125 PetriNetUnfolderBase]: For 38/182 co-relation queries the response was YES. [2023-08-25 04:50:14,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10625 conditions, 7286 events. 2266/7286 cut-off events. For 38/182 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 75818 event pairs, 480 based on Foata normal form. 2/6044 useless extension candidates. Maximal degree in co-relation 10620. Up to 3158 conditions per place. [2023-08-25 04:50:14,220 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 57 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-25 04:50:14,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 130 transitions, 416 flow [2023-08-25 04:50:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1633 transitions. [2023-08-25 04:50:14,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480435422182995 [2023-08-25 04:50:14,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1633 transitions. [2023-08-25 04:50:14,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1633 transitions. [2023-08-25 04:50:14,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:14,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1633 transitions. [2023-08-25 04:50:14,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,238 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 268 flow. Second operand 3 states and 1633 transitions. [2023-08-25 04:50:14,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 130 transitions, 416 flow [2023-08-25 04:50:14,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 416 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:14,242 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 278 flow [2023-08-25 04:50:14,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-08-25 04:50:14,243 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -28 predicate places. [2023-08-25 04:50:14,244 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 278 flow [2023-08-25 04:50:14,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.6666666666666) internal successors, (1586), 3 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:14,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:14,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:50:14,245 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:14,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash 974817446, now seen corresponding path program 1 times [2023-08-25 04:50:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:14,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278235482] [2023-08-25 04:50:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 04:50:14,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:14,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278235482] [2023-08-25 04:50:14,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278235482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:14,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:14,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:14,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946098607] [2023-08-25 04:50:14,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:14,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:14,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:14,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:14,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:14,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:50:14,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:14,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:50:14,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:14,839 INFO L124 PetriNetUnfolderBase]: 2088/5826 cut-off events. [2023-08-25 04:50:14,839 INFO L125 PetriNetUnfolderBase]: For 192/288 co-relation queries the response was YES. [2023-08-25 04:50:14,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9094 conditions, 5826 events. 2088/5826 cut-off events. For 192/288 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 53668 event pairs, 445 based on Foata normal form. 2/4695 useless extension candidates. Maximal degree in co-relation 9088. Up to 2738 conditions per place. [2023-08-25 04:50:14,875 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 57 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-25 04:50:14,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 130 transitions, 431 flow [2023-08-25 04:50:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1631 transitions. [2023-08-25 04:50:14,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47984701382759637 [2023-08-25 04:50:14,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1631 transitions. [2023-08-25 04:50:14,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1631 transitions. [2023-08-25 04:50:14,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:14,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1631 transitions. [2023-08-25 04:50:14,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,891 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 278 flow. Second operand 3 states and 1631 transitions. [2023-08-25 04:50:14,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 130 transitions, 431 flow [2023-08-25 04:50:14,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 431 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:14,894 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 288 flow [2023-08-25 04:50:14,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2023-08-25 04:50:14,895 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -27 predicate places. [2023-08-25 04:50:14,895 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 288 flow [2023-08-25 04:50:14,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:14,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:14,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:50:14,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:14,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash -670455165, now seen corresponding path program 1 times [2023-08-25 04:50:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619876735] [2023-08-25 04:50:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 04:50:14,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:14,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619876735] [2023-08-25 04:50:14,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619876735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:14,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:14,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:14,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770992782] [2023-08-25 04:50:14,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:14,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:14,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:14,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:14,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:14,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:50:14,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:14,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:14,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:50:14,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:15,718 INFO L124 PetriNetUnfolderBase]: 3405/8799 cut-off events. [2023-08-25 04:50:15,718 INFO L125 PetriNetUnfolderBase]: For 622/769 co-relation queries the response was YES. [2023-08-25 04:50:15,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14581 conditions, 8799 events. 3405/8799 cut-off events. For 622/769 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 82850 event pairs, 924 based on Foata normal form. 4/7329 useless extension candidates. Maximal degree in co-relation 14574. Up to 3424 conditions per place. [2023-08-25 04:50:15,776 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 75 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-08-25 04:50:15,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 144 transitions, 518 flow [2023-08-25 04:50:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1645 transitions. [2023-08-25 04:50:15,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4839658723153869 [2023-08-25 04:50:15,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1645 transitions. [2023-08-25 04:50:15,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1645 transitions. [2023-08-25 04:50:15,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:15,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1645 transitions. [2023-08-25 04:50:15,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:15,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:15,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:15,790 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 288 flow. Second operand 3 states and 1645 transitions. [2023-08-25 04:50:15,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 144 transitions, 518 flow [2023-08-25 04:50:15,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 144 transitions, 518 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:15,795 INFO L231 Difference]: Finished difference. Result has 118 places, 116 transitions, 298 flow [2023-08-25 04:50:15,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=118, PETRI_TRANSITIONS=116} [2023-08-25 04:50:15,798 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -26 predicate places. [2023-08-25 04:50:15,800 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 116 transitions, 298 flow [2023-08-25 04:50:15,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:15,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:15,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:15,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:50:15,802 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:15,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash 497370964, now seen corresponding path program 1 times [2023-08-25 04:50:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955886078] [2023-08-25 04:50:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 04:50:15,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:15,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955886078] [2023-08-25 04:50:15,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955886078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:15,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:15,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:50:15,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563863273] [2023-08-25 04:50:15,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:15,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:15,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:15,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:50:15,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 116 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:15,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:15,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:50:15,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:17,036 INFO L124 PetriNetUnfolderBase]: 5141/14131 cut-off events. [2023-08-25 04:50:17,036 INFO L125 PetriNetUnfolderBase]: For 1191/1330 co-relation queries the response was YES. [2023-08-25 04:50:17,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23617 conditions, 14131 events. 5141/14131 cut-off events. For 1191/1330 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 146112 event pairs, 1618 based on Foata normal form. 2/12720 useless extension candidates. Maximal degree in co-relation 23609. Up to 4658 conditions per place. [2023-08-25 04:50:17,130 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 82 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2023-08-25 04:50:17,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 148 transitions, 557 flow [2023-08-25 04:50:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:17,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2023-08-25 04:50:17,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4851426890261842 [2023-08-25 04:50:17,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1649 transitions. [2023-08-25 04:50:17,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1649 transitions. [2023-08-25 04:50:17,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:17,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1649 transitions. [2023-08-25 04:50:17,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 3 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:17,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:17,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:17,144 INFO L175 Difference]: Start difference. First operand has 118 places, 116 transitions, 298 flow. Second operand 3 states and 1649 transitions. [2023-08-25 04:50:17,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 148 transitions, 557 flow [2023-08-25 04:50:17,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 148 transitions, 557 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:17,147 INFO L231 Difference]: Finished difference. Result has 119 places, 116 transitions, 308 flow [2023-08-25 04:50:17,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=119, PETRI_TRANSITIONS=116} [2023-08-25 04:50:17,148 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -25 predicate places. [2023-08-25 04:50:17,148 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 308 flow [2023-08-25 04:50:17,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:17,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:17,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:17,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:50:17,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:17,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1261322180, now seen corresponding path program 1 times [2023-08-25 04:50:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:17,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895510597] [2023-08-25 04:50:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 04:50:17,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:17,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895510597] [2023-08-25 04:50:17,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895510597] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:50:17,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140569985] [2023-08-25 04:50:17,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:17,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:50:17,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:50:17,281 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) [2023-08-25 04:50:17,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 04:50:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:17,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 04:50:17,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:50:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 04:50:17,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:50:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 04:50:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140569985] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:50:17,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:50:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-25 04:50:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679189505] [2023-08-25 04:50:17,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:50:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 04:50:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 04:50:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-25 04:50:17,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-25 04:50:17,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 308 flow. Second operand has 8 states, 8 states have (on average 482.375) internal successors, (3859), 8 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:17,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:17,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-25 04:50:17,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:18,546 INFO L124 PetriNetUnfolderBase]: 4102/11406 cut-off events. [2023-08-25 04:50:18,547 INFO L125 PetriNetUnfolderBase]: For 1314/1481 co-relation queries the response was YES. [2023-08-25 04:50:18,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19824 conditions, 11406 events. 4102/11406 cut-off events. For 1314/1481 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 110935 event pairs, 3179 based on Foata normal form. 0/10424 useless extension candidates. Maximal degree in co-relation 19815. Up to 5939 conditions per place. [2023-08-25 04:50:18,598 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 42 selfloop transitions, 15 changer transitions 0/125 dead transitions. [2023-08-25 04:50:18,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 458 flow [2023-08-25 04:50:18,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:50:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:50:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2940 transitions. [2023-08-25 04:50:18,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324801412180053 [2023-08-25 04:50:18,606 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2940 transitions. [2023-08-25 04:50:18,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2940 transitions. [2023-08-25 04:50:18,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:18,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2940 transitions. [2023-08-25 04:50:18,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:18,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:18,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:18,621 INFO L175 Difference]: Start difference. First operand has 119 places, 116 transitions, 308 flow. Second operand 6 states and 2940 transitions. [2023-08-25 04:50:18,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 458 flow [2023-08-25 04:50:18,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 125 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:18,624 INFO L231 Difference]: Finished difference. Result has 127 places, 125 transitions, 404 flow [2023-08-25 04:50:18,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=127, PETRI_TRANSITIONS=125} [2023-08-25 04:50:18,625 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-25 04:50:18,625 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 404 flow [2023-08-25 04:50:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 482.375) internal successors, (3859), 8 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:18,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:18,626 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:18,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 04:50:18,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:50:18,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:18,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1654833622, now seen corresponding path program 2 times [2023-08-25 04:50:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:18,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233270790] [2023-08-25 04:50:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:18,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:50:19,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:19,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233270790] [2023-08-25 04:50:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233270790] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:50:19,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764657873] [2023-08-25 04:50:19,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 04:50:19,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:50:19,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:50:19,141 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) [2023-08-25 04:50:19,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 04:50:19,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 04:50:19,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 04:50:19,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 04:50:19,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:50:19,369 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 04:50:19,393 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2023-08-25 04:50:19,426 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 04:50:19,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 04:50:19,472 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 04:50:19,473 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 04:50:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:50:19,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 04:50:19,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764657873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:19,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 04:50:19,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-25 04:50:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696126649] [2023-08-25 04:50:19,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:19,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 04:50:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 04:50:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:50:19,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-25 04:50:19,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 404 flow. Second operand has 7 states, 7 states have (on average 458.42857142857144) internal successors, (3209), 7 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:19,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:19,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-25 04:50:19,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:34,016 INFO L124 PetriNetUnfolderBase]: 123369/173917 cut-off events. [2023-08-25 04:50:34,017 INFO L125 PetriNetUnfolderBase]: For 17101/17101 co-relation queries the response was YES. [2023-08-25 04:50:34,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367408 conditions, 173917 events. 123369/173917 cut-off events. For 17101/17101 co-relation queries the response was YES. Maximal size of possible extension queue 2976. Compared 1283473 event pairs, 12756 based on Foata normal form. 0/158314 useless extension candidates. Maximal degree in co-relation 367395. Up to 65398 conditions per place. [2023-08-25 04:50:35,312 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 325 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2023-08-25 04:50:35,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 352 transitions, 1638 flow [2023-08-25 04:50:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:50:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:50:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3481 transitions. [2023-08-25 04:50:35,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43891060395914766 [2023-08-25 04:50:35,321 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3481 transitions. [2023-08-25 04:50:35,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3481 transitions. [2023-08-25 04:50:35,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:35,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3481 transitions. [2023-08-25 04:50:35,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 497.2857142857143) internal successors, (3481), 7 states have internal predecessors, (3481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:35,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:35,338 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:35,338 INFO L175 Difference]: Start difference. First operand has 127 places, 125 transitions, 404 flow. Second operand 7 states and 3481 transitions. [2023-08-25 04:50:35,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 352 transitions, 1638 flow [2023-08-25 04:50:35,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 352 transitions, 1614 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-25 04:50:35,358 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 388 flow [2023-08-25 04:50:35,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=388, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-25 04:50:35,359 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-25 04:50:35,360 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 388 flow [2023-08-25 04:50:35,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 458.42857142857144) internal successors, (3209), 7 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:35,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:35,361 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:35,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 04:50:35,569 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,SelfDestructingSolverStorable8 [2023-08-25 04:50:35,569 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:35,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:35,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1004639730, now seen corresponding path program 1 times [2023-08-25 04:50:35,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:35,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689009078] [2023-08-25 04:50:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:50:35,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689009078] [2023-08-25 04:50:35,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689009078] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:50:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746937624] [2023-08-25 04:50:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:35,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:50:35,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:50:35,813 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) [2023-08-25 04:50:35,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 04:50:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:35,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 04:50:36,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:50:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:50:36,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:50:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:50:36,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746937624] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:50:36,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:50:36,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-25 04:50:36,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537604607] [2023-08-25 04:50:36,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:50:36,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 04:50:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 04:50:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-25 04:50:36,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-25 04:50:36,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 388 flow. Second operand has 17 states, 17 states have (on average 481.5882352941176) internal successors, (8187), 17 states have internal predecessors, (8187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:36,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:36,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-25 04:50:36,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:37,244 INFO L124 PetriNetUnfolderBase]: 4102/11391 cut-off events. [2023-08-25 04:50:37,244 INFO L125 PetriNetUnfolderBase]: For 2008/2175 co-relation queries the response was YES. [2023-08-25 04:50:37,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20590 conditions, 11391 events. 4102/11391 cut-off events. For 2008/2175 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 110674 event pairs, 3179 based on Foata normal form. 1/10429 useless extension candidates. Maximal degree in co-relation 20576. Up to 5939 conditions per place. [2023-08-25 04:50:37,342 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 42 selfloop transitions, 18 changer transitions 0/127 dead transitions. [2023-08-25 04:50:37,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 127 transitions, 526 flow [2023-08-25 04:50:37,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:50:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:50:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3417 transitions. [2023-08-25 04:50:37,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43084100365653766 [2023-08-25 04:50:37,350 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3417 transitions. [2023-08-25 04:50:37,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3417 transitions. [2023-08-25 04:50:37,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:37,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3417 transitions. [2023-08-25 04:50:37,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 488.14285714285717) internal successors, (3417), 7 states have internal predecessors, (3417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:37,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:37,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:37,368 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 388 flow. Second operand 7 states and 3417 transitions. [2023-08-25 04:50:37,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 127 transitions, 526 flow [2023-08-25 04:50:37,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 127 transitions, 517 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:50:37,374 INFO L231 Difference]: Finished difference. Result has 133 places, 127 transitions, 447 flow [2023-08-25 04:50:37,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=447, PETRI_PLACES=133, PETRI_TRANSITIONS=127} [2023-08-25 04:50:37,375 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-25 04:50:37,375 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 127 transitions, 447 flow [2023-08-25 04:50:37,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 481.5882352941176) internal successors, (8187), 17 states have internal predecessors, (8187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:37,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:37,377 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:37,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 04:50:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:50:37,583 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:37,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1589233716, now seen corresponding path program 2 times [2023-08-25 04:50:37,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:37,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641037404] [2023-08-25 04:50:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:50:38,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641037404] [2023-08-25 04:50:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641037404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:50:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651968747] [2023-08-25 04:50:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:38,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:50:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:50:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:50:38,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:50:38,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 127 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:38,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:38,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:50:38,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:55,199 INFO L124 PetriNetUnfolderBase]: 125215/181840 cut-off events. [2023-08-25 04:50:55,199 INFO L125 PetriNetUnfolderBase]: For 17192/17192 co-relation queries the response was YES. [2023-08-25 04:50:56,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387389 conditions, 181840 events. 125215/181840 cut-off events. For 17192/17192 co-relation queries the response was YES. Maximal size of possible extension queue 2864. Compared 1362339 event pairs, 51820 based on Foata normal form. 0/167948 useless extension candidates. Maximal degree in co-relation 387374. Up to 82880 conditions per place. [2023-08-25 04:50:56,874 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 285 selfloop transitions, 5 changer transitions 0/310 dead transitions. [2023-08-25 04:50:56,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 310 transitions, 1473 flow [2023-08-25 04:50:56,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:50:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:50:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2970 transitions. [2023-08-25 04:50:56,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4368932038834951 [2023-08-25 04:50:56,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2970 transitions. [2023-08-25 04:50:56,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2970 transitions. [2023-08-25 04:50:56,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:56,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2970 transitions. [2023-08-25 04:50:56,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.0) internal successors, (2970), 6 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:56,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:56,893 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:56,893 INFO L175 Difference]: Start difference. First operand has 133 places, 127 transitions, 447 flow. Second operand 6 states and 2970 transitions. [2023-08-25 04:50:56,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 310 transitions, 1473 flow [2023-08-25 04:50:56,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 310 transitions, 1437 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-25 04:50:56,903 INFO L231 Difference]: Finished difference. Result has 133 places, 126 transitions, 419 flow [2023-08-25 04:50:56,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=419, PETRI_PLACES=133, PETRI_TRANSITIONS=126} [2023-08-25 04:50:56,904 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-25 04:50:56,904 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 126 transitions, 419 flow [2023-08-25 04:50:56,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:56,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:56,905 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:56,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:50:56,905 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:50:56,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash 918450045, now seen corresponding path program 1 times [2023-08-25 04:50:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128434897] [2023-08-25 04:50:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:50:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128434897] [2023-08-25 04:50:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128434897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:57,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:50:57,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700442635] [2023-08-25 04:50:57,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:57,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:50:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:57,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:50:57,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:50:57,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:50:57,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 126 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:57,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:57,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:50:57,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:13,206 INFO L124 PetriNetUnfolderBase]: 127326/187131 cut-off events. [2023-08-25 04:51:13,206 INFO L125 PetriNetUnfolderBase]: For 26953/26953 co-relation queries the response was YES. [2023-08-25 04:51:14,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406189 conditions, 187131 events. 127326/187131 cut-off events. For 26953/26953 co-relation queries the response was YES. Maximal size of possible extension queue 2927. Compared 1428324 event pairs, 51374 based on Foata normal form. 0/175796 useless extension candidates. Maximal degree in co-relation 406173. Up to 84702 conditions per place. [2023-08-25 04:51:14,952 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 301 selfloop transitions, 5 changer transitions 0/325 dead transitions. [2023-08-25 04:51:14,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 325 transitions, 1537 flow [2023-08-25 04:51:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:51:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:51:14,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2990 transitions. [2023-08-25 04:51:14,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43983524566048837 [2023-08-25 04:51:14,956 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2990 transitions. [2023-08-25 04:51:14,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2990 transitions. [2023-08-25 04:51:14,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:14,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2990 transitions. [2023-08-25 04:51:14,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 498.3333333333333) internal successors, (2990), 6 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:14,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:14,970 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:14,970 INFO L175 Difference]: Start difference. First operand has 133 places, 126 transitions, 419 flow. Second operand 6 states and 2990 transitions. [2023-08-25 04:51:14,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 325 transitions, 1537 flow [2023-08-25 04:51:15,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 325 transitions, 1487 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:51:15,011 INFO L231 Difference]: Finished difference. Result has 132 places, 125 transitions, 417 flow [2023-08-25 04:51:15,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2023-08-25 04:51:15,012 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -12 predicate places. [2023-08-25 04:51:15,012 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 417 flow [2023-08-25 04:51:15,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:15,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:15,013 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:15,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:51:15,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:51:15,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash -417483556, now seen corresponding path program 1 times [2023-08-25 04:51:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963299071] [2023-08-25 04:51:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:15,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:51:15,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963299071] [2023-08-25 04:51:15,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963299071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:15,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:15,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:51:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215926695] [2023-08-25 04:51:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:51:15,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:15,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:51:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:51:15,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:51:15,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 455.5) internal successors, (2733), 6 states have internal predecessors, (2733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:15,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:15,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:51:15,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:29,180 INFO L124 PetriNetUnfolderBase]: 110684/164643 cut-off events. [2023-08-25 04:51:29,180 INFO L125 PetriNetUnfolderBase]: For 24623/24623 co-relation queries the response was YES. [2023-08-25 04:51:30,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356165 conditions, 164643 events. 110684/164643 cut-off events. For 24623/24623 co-relation queries the response was YES. Maximal size of possible extension queue 2661. Compared 1260337 event pairs, 39363 based on Foata normal form. 0/156440 useless extension candidates. Maximal degree in co-relation 356149. Up to 62804 conditions per place. [2023-08-25 04:51:30,728 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 314 selfloop transitions, 5 changer transitions 0/340 dead transitions. [2023-08-25 04:51:30,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 340 transitions, 1593 flow [2023-08-25 04:51:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:51:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:51:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3003 transitions. [2023-08-25 04:51:30,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.441747572815534 [2023-08-25 04:51:30,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3003 transitions. [2023-08-25 04:51:30,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3003 transitions. [2023-08-25 04:51:30,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:30,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3003 transitions. [2023-08-25 04:51:30,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 500.5) internal successors, (3003), 6 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:30,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:30,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:30,748 INFO L175 Difference]: Start difference. First operand has 132 places, 125 transitions, 417 flow. Second operand 6 states and 3003 transitions. [2023-08-25 04:51:30,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 340 transitions, 1593 flow [2023-08-25 04:51:30,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 340 transitions, 1543 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:51:30,815 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 415 flow [2023-08-25 04:51:30,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-25 04:51:30,816 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-25 04:51:30,816 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 415 flow [2023-08-25 04:51:30,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.5) internal successors, (2733), 6 states have internal predecessors, (2733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:30,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:30,817 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:30,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:51:30,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:51:30,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:30,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2132723680, now seen corresponding path program 1 times [2023-08-25 04:51:30,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:30,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737090236] [2023-08-25 04:51:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:30,905 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:51:30,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:30,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737090236] [2023-08-25 04:51:30,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737090236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:30,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:30,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:51:30,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614823487] [2023-08-25 04:51:30,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:30,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:51:30,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:51:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:51:30,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-25 04:51:30,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:30,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:30,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-25 04:51:30,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:32,490 INFO L124 PetriNetUnfolderBase]: 7504/17561 cut-off events. [2023-08-25 04:51:32,490 INFO L125 PetriNetUnfolderBase]: For 2714/2881 co-relation queries the response was YES. [2023-08-25 04:51:32,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33443 conditions, 17561 events. 7504/17561 cut-off events. For 2714/2881 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 168531 event pairs, 2298 based on Foata normal form. 0/17028 useless extension candidates. Maximal degree in co-relation 33427. Up to 7101 conditions per place. [2023-08-25 04:51:32,595 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 94 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-08-25 04:51:32,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 154 transitions, 697 flow [2023-08-25 04:51:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:51:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:51:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1648 transitions. [2023-08-25 04:51:32,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2023-08-25 04:51:32,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1648 transitions. [2023-08-25 04:51:32,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1648 transitions. [2023-08-25 04:51:32,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:32,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1648 transitions. [2023-08-25 04:51:32,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:32,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:32,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:32,605 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 415 flow. Second operand 3 states and 1648 transitions. [2023-08-25 04:51:32,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 154 transitions, 697 flow [2023-08-25 04:51:32,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 154 transitions, 685 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:51:32,620 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 415 flow [2023-08-25 04:51:32,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2023-08-25 04:51:32,621 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-25 04:51:32,621 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 415 flow [2023-08-25 04:51:32,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:32,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:32,621 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:32,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 04:51:32,621 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:51:32,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash 131160645, now seen corresponding path program 1 times [2023-08-25 04:51:32,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:32,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391219051] [2023-08-25 04:51:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:51:33,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:33,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391219051] [2023-08-25 04:51:33,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391219051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:33,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:33,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:51:33,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210039778] [2023-08-25 04:51:33,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:33,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:51:33,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:51:33,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:51:33,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-25 04:51:33,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 460.5) internal successors, (2763), 6 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:33,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:33,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-25 04:51:33,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:51,546 INFO L124 PetriNetUnfolderBase]: 147145/215183 cut-off events. [2023-08-25 04:51:51,546 INFO L125 PetriNetUnfolderBase]: For 19639/19639 co-relation queries the response was YES. [2023-08-25 04:51:52,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460973 conditions, 215183 events. 147145/215183 cut-off events. For 19639/19639 co-relation queries the response was YES. Maximal size of possible extension queue 3584. Compared 1646389 event pairs, 123948 based on Foata normal form. 0/207038 useless extension candidates. Maximal degree in co-relation 460957. Up to 191560 conditions per place. [2023-08-25 04:51:53,637 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 241 selfloop transitions, 4 changer transitions 0/267 dead transitions. [2023-08-25 04:51:53,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 267 transitions, 1271 flow [2023-08-25 04:51:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:51:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:51:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2945 transitions. [2023-08-25 04:51:53,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332156516622536 [2023-08-25 04:51:53,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2945 transitions. [2023-08-25 04:51:53,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2945 transitions. [2023-08-25 04:51:53,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:53,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2945 transitions. [2023-08-25 04:51:53,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 490.8333333333333) internal successors, (2945), 6 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:53,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:53,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:53,653 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 415 flow. Second operand 6 states and 2945 transitions. [2023-08-25 04:51:53,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 267 transitions, 1271 flow [2023-08-25 04:51:53,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 267 transitions, 1271 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:51:53,663 INFO L231 Difference]: Finished difference. Result has 131 places, 123 transitions, 421 flow [2023-08-25 04:51:53,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=131, PETRI_TRANSITIONS=123} [2023-08-25 04:51:53,664 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-25 04:51:53,664 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 123 transitions, 421 flow [2023-08-25 04:51:53,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.5) internal successors, (2763), 6 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:53,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:53,665 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:53,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 04:51:53,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:51:53,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:53,665 INFO L85 PathProgramCache]: Analyzing trace with hash -704572557, now seen corresponding path program 1 times [2023-08-25 04:51:53,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:53,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415130413] [2023-08-25 04:51:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:53,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:51:54,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:54,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415130413] [2023-08-25 04:51:54,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415130413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:54,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:54,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:51:54,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153754156] [2023-08-25 04:51:54,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:54,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:51:54,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:54,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:51:54,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:51:54,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:51:54,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 123 transitions, 421 flow. Second operand has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:54,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:54,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:51:54,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:14,304 INFO L124 PetriNetUnfolderBase]: 165411/238833 cut-off events. [2023-08-25 04:52:14,304 INFO L125 PetriNetUnfolderBase]: For 23222/23222 co-relation queries the response was YES. [2023-08-25 04:52:15,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516209 conditions, 238833 events. 165411/238833 cut-off events. For 23222/23222 co-relation queries the response was YES. Maximal size of possible extension queue 3646. Compared 1788880 event pairs, 120291 based on Foata normal form. 0/233298 useless extension candidates. Maximal degree in co-relation 516192. Up to 187459 conditions per place. [2023-08-25 04:52:16,687 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 274 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2023-08-25 04:52:16,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 298 transitions, 1397 flow [2023-08-25 04:52:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:52:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:52:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2963 transitions. [2023-08-25 04:52:16,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358634892615475 [2023-08-25 04:52:16,692 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2963 transitions. [2023-08-25 04:52:16,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2963 transitions. [2023-08-25 04:52:16,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:16,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2963 transitions. [2023-08-25 04:52:16,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 493.8333333333333) internal successors, (2963), 6 states have internal predecessors, (2963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:16,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:16,704 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:16,704 INFO L175 Difference]: Start difference. First operand has 131 places, 123 transitions, 421 flow. Second operand 6 states and 2963 transitions. [2023-08-25 04:52:16,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 298 transitions, 1397 flow [2023-08-25 04:52:16,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 298 transitions, 1390 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:52:16,764 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 422 flow [2023-08-25 04:52:16,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=422, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2023-08-25 04:52:16,765 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-25 04:52:16,765 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 422 flow [2023-08-25 04:52:16,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:16,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:52:16,766 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:52:16,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 04:52:16,766 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:52:16,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:52:16,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2089141439, now seen corresponding path program 1 times [2023-08-25 04:52:16,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:52:16,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892531924] [2023-08-25 04:52:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:52:16,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:52:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:52:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:52:17,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:52:17,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892531924] [2023-08-25 04:52:17,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892531924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:52:17,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:52:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:52:17,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873123821] [2023-08-25 04:52:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:52:17,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:52:17,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:52:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:52:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:52:17,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:52:17,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:17,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:52:17,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:52:17,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:37,327 INFO L124 PetriNetUnfolderBase]: 138832/202043 cut-off events. [2023-08-25 04:52:37,328 INFO L125 PetriNetUnfolderBase]: For 28285/28285 co-relation queries the response was YES. [2023-08-25 04:52:38,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449628 conditions, 202043 events. 138832/202043 cut-off events. For 28285/28285 co-relation queries the response was YES. Maximal size of possible extension queue 3432. Compared 1520094 event pairs, 100247 based on Foata normal form. 0/199195 useless extension candidates. Maximal degree in co-relation 449611. Up to 155417 conditions per place. [2023-08-25 04:52:39,128 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 303 selfloop transitions, 5 changer transitions 0/329 dead transitions. [2023-08-25 04:52:39,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 329 transitions, 1564 flow [2023-08-25 04:52:39,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:52:39,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:52:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2992 transitions. [2023-08-25 04:52:39,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4401294498381877 [2023-08-25 04:52:39,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2992 transitions. [2023-08-25 04:52:39,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2992 transitions. [2023-08-25 04:52:39,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:39,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2992 transitions. [2023-08-25 04:52:39,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 498.6666666666667) internal successors, (2992), 6 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:39,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:39,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:39,141 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 422 flow. Second operand 6 states and 2992 transitions. [2023-08-25 04:52:39,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 329 transitions, 1564 flow [2023-08-25 04:52:39,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 329 transitions, 1514 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:52:39,403 INFO L231 Difference]: Finished difference. Result has 130 places, 121 transitions, 420 flow [2023-08-25 04:52:39,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=130, PETRI_TRANSITIONS=121} [2023-08-25 04:52:39,404 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -14 predicate places. [2023-08-25 04:52:39,404 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 121 transitions, 420 flow [2023-08-25 04:52:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:39,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:52:39,405 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:52:39,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 04:52:39,405 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:52:39,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:52:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2144966236, now seen corresponding path program 1 times [2023-08-25 04:52:39,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:52:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103015968] [2023-08-25 04:52:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:52:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:52:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:52:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:52:39,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:52:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103015968] [2023-08-25 04:52:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103015968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:52:39,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:52:39,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:52:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734364969] [2023-08-25 04:52:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:52:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:52:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:52:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:52:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:52:39,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-25 04:52:39,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 121 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:39,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:52:39,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-25 04:52:39,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:57,750 INFO L124 PetriNetUnfolderBase]: 142716/208316 cut-off events. [2023-08-25 04:52:57,751 INFO L125 PetriNetUnfolderBase]: For 25917/25917 co-relation queries the response was YES. [2023-08-25 04:52:58,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460939 conditions, 208316 events. 142716/208316 cut-off events. For 25917/25917 co-relation queries the response was YES. Maximal size of possible extension queue 3402. Compared 1579819 event pairs, 108082 based on Foata normal form. 0/207229 useless extension candidates. Maximal degree in co-relation 460922. Up to 169158 conditions per place. [2023-08-25 04:52:59,497 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 275 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2023-08-25 04:52:59,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 300 transitions, 1450 flow [2023-08-25 04:52:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:52:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:52:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2964 transitions. [2023-08-25 04:52:59,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43601059135039716 [2023-08-25 04:52:59,503 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2964 transitions. [2023-08-25 04:52:59,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2964 transitions. [2023-08-25 04:52:59,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:59,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2964 transitions. [2023-08-25 04:52:59,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 494.0) internal successors, (2964), 6 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:59,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:59,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:52:59,511 INFO L175 Difference]: Start difference. First operand has 130 places, 121 transitions, 420 flow. Second operand 6 states and 2964 transitions. [2023-08-25 04:52:59,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 300 transitions, 1450 flow [2023-08-25 04:53:00,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 300 transitions, 1400 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:53:00,315 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 418 flow [2023-08-25 04:53:00,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-25 04:53:00,315 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -15 predicate places. [2023-08-25 04:53:00,315 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 418 flow [2023-08-25 04:53:00,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:00,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:00,316 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 04:53:00,316 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:00,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1784648619, now seen corresponding path program 1 times [2023-08-25 04:53:00,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:00,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999525641] [2023-08-25 04:53:00,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:00,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:00,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999525641] [2023-08-25 04:53:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999525641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:00,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:00,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:00,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250321548] [2023-08-25 04:53:00,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:00,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:53:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:53:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:53:00,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-25 04:53:00,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 462.1666666666667) internal successors, (2773), 6 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:00,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:00,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-25 04:53:00,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:18,684 INFO L124 PetriNetUnfolderBase]: 129627/191219 cut-off events. [2023-08-25 04:53:18,684 INFO L125 PetriNetUnfolderBase]: For 21595/21595 co-relation queries the response was YES. [2023-08-25 04:53:19,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419635 conditions, 191219 events. 129627/191219 cut-off events. For 21595/21595 co-relation queries the response was YES. Maximal size of possible extension queue 3273. Compared 1469869 event pairs, 113459 based on Foata normal form. 0/189987 useless extension candidates. Maximal degree in co-relation 419618. Up to 176968 conditions per place. [2023-08-25 04:53:20,604 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 157 selfloop transitions, 4 changer transitions 0/183 dead transitions. [2023-08-25 04:53:20,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 183 transitions, 894 flow [2023-08-25 04:53:20,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2023-08-25 04:53:20,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42262430126507794 [2023-08-25 04:53:20,608 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2873 transitions. [2023-08-25 04:53:20,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2873 transitions. [2023-08-25 04:53:20,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:20,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2873 transitions. [2023-08-25 04:53:20,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 478.8333333333333) internal successors, (2873), 6 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,616 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 418 flow. Second operand 6 states and 2873 transitions. [2023-08-25 04:53:20,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 183 transitions, 894 flow [2023-08-25 04:53:20,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 183 transitions, 884 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:53:20,984 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 414 flow [2023-08-25 04:53:20,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-25 04:53:20,985 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -16 predicate places. [2023-08-25 04:53:20,985 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 414 flow [2023-08-25 04:53:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 462.1666666666667) internal successors, (2773), 6 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:20,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:20,986 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:20,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 04:53:20,986 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:20,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:20,986 INFO L85 PathProgramCache]: Analyzing trace with hash -318168810, now seen corresponding path program 1 times [2023-08-25 04:53:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:20,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807414865] [2023-08-25 04:53:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:20,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:21,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:21,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807414865] [2023-08-25 04:53:21,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807414865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:21,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:21,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:53:21,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124510059] [2023-08-25 04:53:21,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:21,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:53:21,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:21,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:53:21,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:53:21,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 1133 [2023-08-25 04:53:21,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 414 flow. Second operand has 4 states, 4 states have (on average 515.75) internal successors, (2063), 4 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:21,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:21,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 1133 [2023-08-25 04:53:21,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:23,446 INFO L124 PetriNetUnfolderBase]: 12835/23649 cut-off events. [2023-08-25 04:53:23,446 INFO L125 PetriNetUnfolderBase]: For 3847/4034 co-relation queries the response was YES. [2023-08-25 04:53:23,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48443 conditions, 23649 events. 12835/23649 cut-off events. For 3847/4034 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 193819 event pairs, 5426 based on Foata normal form. 9/22980 useless extension candidates. Maximal degree in co-relation 48426. Up to 10211 conditions per place. [2023-08-25 04:53:23,654 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 97 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2023-08-25 04:53:23,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 152 transitions, 704 flow [2023-08-25 04:53:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:53:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:53:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1601 transitions. [2023-08-25 04:53:23,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102088849661666 [2023-08-25 04:53:23,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1601 transitions. [2023-08-25 04:53:23,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1601 transitions. [2023-08-25 04:53:23,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:23,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1601 transitions. [2023-08-25 04:53:23,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 533.6666666666666) internal successors, (1601), 3 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,660 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 414 flow. Second operand 3 states and 1601 transitions. [2023-08-25 04:53:23,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 152 transitions, 704 flow [2023-08-25 04:53:23,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 152 transitions, 695 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:53:23,664 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 419 flow [2023-08-25 04:53:23,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2023-08-25 04:53:23,664 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-25 04:53:23,664 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 419 flow [2023-08-25 04:53:23,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 515.75) internal successors, (2063), 4 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:23,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:23,665 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:23,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 04:53:23,665 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:23,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash -774907114, now seen corresponding path program 1 times [2023-08-25 04:53:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:23,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761026283] [2023-08-25 04:53:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:24,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:24,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761026283] [2023-08-25 04:53:24,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761026283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:24,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:24,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:24,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899068601] [2023-08-25 04:53:24,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:24,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:24,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:24,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:24,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:24,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:24,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:27,824 INFO L124 PetriNetUnfolderBase]: 19756/34696 cut-off events. [2023-08-25 04:53:27,824 INFO L125 PetriNetUnfolderBase]: For 8358/8926 co-relation queries the response was YES. [2023-08-25 04:53:27,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73740 conditions, 34696 events. 19756/34696 cut-off events. For 8358/8926 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 285929 event pairs, 9341 based on Foata normal form. 146/33241 useless extension candidates. Maximal degree in co-relation 73722. Up to 15658 conditions per place. [2023-08-25 04:53:28,074 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 132 selfloop transitions, 4 changer transitions 12/196 dead transitions. [2023-08-25 04:53:28,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 196 transitions, 931 flow [2023-08-25 04:53:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2635 transitions. [2023-08-25 04:53:28,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651368049426302 [2023-08-25 04:53:28,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2635 transitions. [2023-08-25 04:53:28,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2635 transitions. [2023-08-25 04:53:28,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:28,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2635 transitions. [2023-08-25 04:53:28,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,086 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,086 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 419 flow. Second operand 5 states and 2635 transitions. [2023-08-25 04:53:28,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 196 transitions, 931 flow [2023-08-25 04:53:28,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 196 transitions, 925 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:28,125 INFO L231 Difference]: Finished difference. Result has 133 places, 123 transitions, 449 flow [2023-08-25 04:53:28,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=449, PETRI_PLACES=133, PETRI_TRANSITIONS=123} [2023-08-25 04:53:28,125 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-25 04:53:28,125 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 123 transitions, 449 flow [2023-08-25 04:53:28,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:28,126 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:28,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 04:53:28,126 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:28,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 518745770, now seen corresponding path program 2 times [2023-08-25 04:53:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:28,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110204718] [2023-08-25 04:53:28,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:28,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:28,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110204718] [2023-08-25 04:53:28,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110204718] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:53:28,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302143666] [2023-08-25 04:53:28,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 04:53:28,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:53:28,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:53:28,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:53:28,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 04:53:28,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 04:53:28,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 04:53:28,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 04:53:28,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:53:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-08-25 04:53:28,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 04:53:28,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302143666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:28,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 04:53:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-08-25 04:53:28,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671993127] [2023-08-25 04:53:28,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:28,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-08-25 04:53:28,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:28,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 123 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:28,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:28,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:28,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:34,316 INFO L124 PetriNetUnfolderBase]: 24859/53070 cut-off events. [2023-08-25 04:53:34,316 INFO L125 PetriNetUnfolderBase]: For 19360/19448 co-relation queries the response was YES. [2023-08-25 04:53:34,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111481 conditions, 53070 events. 24859/53070 cut-off events. For 19360/19448 co-relation queries the response was YES. Maximal size of possible extension queue 1231. Compared 544994 event pairs, 7425 based on Foata normal form. 232/51635 useless extension candidates. Maximal degree in co-relation 111460. Up to 18637 conditions per place. [2023-08-25 04:53:34,833 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 168 selfloop transitions, 7 changer transitions 0/223 dead transitions. [2023-08-25 04:53:34,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 223 transitions, 1104 flow [2023-08-25 04:53:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3157 transitions. [2023-08-25 04:53:34,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46440129449838186 [2023-08-25 04:53:34,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3157 transitions. [2023-08-25 04:53:34,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3157 transitions. [2023-08-25 04:53:34,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:34,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3157 transitions. [2023-08-25 04:53:34,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 526.1666666666666) internal successors, (3157), 6 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,847 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:34,847 INFO L175 Difference]: Start difference. First operand has 133 places, 123 transitions, 449 flow. Second operand 6 states and 3157 transitions. [2023-08-25 04:53:34,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 223 transitions, 1104 flow [2023-08-25 04:53:35,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 223 transitions, 1100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:35,009 INFO L231 Difference]: Finished difference. Result has 139 places, 125 transitions, 477 flow [2023-08-25 04:53:35,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=139, PETRI_TRANSITIONS=125} [2023-08-25 04:53:35,009 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -5 predicate places. [2023-08-25 04:53:35,009 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 125 transitions, 477 flow [2023-08-25 04:53:35,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:35,010 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:35,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 04:53:35,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:53:35,211 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:35,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:35,212 INFO L85 PathProgramCache]: Analyzing trace with hash -726946842, now seen corresponding path program 3 times [2023-08-25 04:53:35,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:35,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861336820] [2023-08-25 04:53:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:35,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:35,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861336820] [2023-08-25 04:53:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861336820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:35,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964946413] [2023-08-25 04:53:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:35,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:35,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:35,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 125 transitions, 477 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:35,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:35,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:35,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:41,552 INFO L124 PetriNetUnfolderBase]: 29833/53615 cut-off events. [2023-08-25 04:53:41,552 INFO L125 PetriNetUnfolderBase]: For 27989/29117 co-relation queries the response was YES. [2023-08-25 04:53:41,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125434 conditions, 53615 events. 29833/53615 cut-off events. For 27989/29117 co-relation queries the response was YES. Maximal size of possible extension queue 1277. Compared 478634 event pairs, 11641 based on Foata normal form. 104/50942 useless extension candidates. Maximal degree in co-relation 125411. Up to 19915 conditions per place. [2023-08-25 04:53:42,075 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 156 selfloop transitions, 8 changer transitions 5/217 dead transitions. [2023-08-25 04:53:42,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 217 transitions, 1113 flow [2023-08-25 04:53:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:53:42,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:53:42,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2650 transitions. [2023-08-25 04:53:42,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4677846425419241 [2023-08-25 04:53:42,078 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2650 transitions. [2023-08-25 04:53:42,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2650 transitions. [2023-08-25 04:53:42,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:42,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2650 transitions. [2023-08-25 04:53:42,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:42,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:42,085 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:42,085 INFO L175 Difference]: Start difference. First operand has 139 places, 125 transitions, 477 flow. Second operand 5 states and 2650 transitions. [2023-08-25 04:53:42,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 217 transitions, 1113 flow [2023-08-25 04:53:42,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 217 transitions, 1105 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 04:53:42,173 INFO L231 Difference]: Finished difference. Result has 143 places, 130 transitions, 534 flow [2023-08-25 04:53:42,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=534, PETRI_PLACES=143, PETRI_TRANSITIONS=130} [2023-08-25 04:53:42,173 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-08-25 04:53:42,174 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 130 transitions, 534 flow [2023-08-25 04:53:42,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:42,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:42,174 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:42,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 04:53:42,174 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:42,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash -86528034, now seen corresponding path program 4 times [2023-08-25 04:53:42,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:42,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456134338] [2023-08-25 04:53:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:42,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:42,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:42,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456134338] [2023-08-25 04:53:42,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456134338] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:53:42,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108331707] [2023-08-25 04:53:42,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 04:53:42,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:53:42,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:53:42,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:53:42,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 04:53:43,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 04:53:43,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 04:53:43,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-25 04:53:43,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:53:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:43,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:53:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:43,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108331707] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 04:53:43,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 04:53:43,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2023-08-25 04:53:43,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284927430] [2023-08-25 04:53:43,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:43,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:43,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:43,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:43,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 04:53:43,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:43,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 130 transitions, 534 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:43,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:43,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:43,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:49,521 INFO L124 PetriNetUnfolderBase]: 30819/58433 cut-off events. [2023-08-25 04:53:49,521 INFO L125 PetriNetUnfolderBase]: For 47106/48087 co-relation queries the response was YES. [2023-08-25 04:53:49,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140506 conditions, 58433 events. 30819/58433 cut-off events. For 47106/48087 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 554621 event pairs, 2083 based on Foata normal form. 293/56591 useless extension candidates. Maximal degree in co-relation 140480. Up to 20299 conditions per place. [2023-08-25 04:53:50,162 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 179 selfloop transitions, 26 changer transitions 1/254 dead transitions. [2023-08-25 04:53:50,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 254 transitions, 1433 flow [2023-08-25 04:53:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:53:50,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:53:50,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3671 transitions. [2023-08-25 04:53:50,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4628672298575211 [2023-08-25 04:53:50,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3671 transitions. [2023-08-25 04:53:50,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3671 transitions. [2023-08-25 04:53:50,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:50,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3671 transitions. [2023-08-25 04:53:50,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 524.4285714285714) internal successors, (3671), 7 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:50,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:50,177 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:50,177 INFO L175 Difference]: Start difference. First operand has 143 places, 130 transitions, 534 flow. Second operand 7 states and 3671 transitions. [2023-08-25 04:53:50,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 254 transitions, 1433 flow [2023-08-25 04:53:50,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 254 transitions, 1425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:53:50,303 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 734 flow [2023-08-25 04:53:50,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=734, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2023-08-25 04:53:50,304 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2023-08-25 04:53:50,304 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 734 flow [2023-08-25 04:53:50,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:50,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:50,305 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:50,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-25 04:53:50,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-25 04:53:50,505 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:50,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1130385776, now seen corresponding path program 5 times [2023-08-25 04:53:50,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:50,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445759279] [2023-08-25 04:53:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:50,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:50,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:50,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445759279] [2023-08-25 04:53:50,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445759279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:50,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:50,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:50,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540504132] [2023-08-25 04:53:50,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:50,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:50,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:50,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:50,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:50,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 734 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:50,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:50,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:50,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:57,774 INFO L124 PetriNetUnfolderBase]: 30955/58357 cut-off events. [2023-08-25 04:53:57,774 INFO L125 PetriNetUnfolderBase]: For 81033/84803 co-relation queries the response was YES. [2023-08-25 04:53:58,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149931 conditions, 58357 events. 30955/58357 cut-off events. For 81033/84803 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 552305 event pairs, 12109 based on Foata normal form. 355/56420 useless extension candidates. Maximal degree in co-relation 149901. Up to 19894 conditions per place. [2023-08-25 04:53:58,458 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 186 selfloop transitions, 23 changer transitions 3/260 dead transitions. [2023-08-25 04:53:58,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 260 transitions, 1645 flow [2023-08-25 04:53:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:53:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:53:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3170 transitions. [2023-08-25 04:53:58,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663136216534275 [2023-08-25 04:53:58,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3170 transitions. [2023-08-25 04:53:58,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3170 transitions. [2023-08-25 04:53:58,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:58,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3170 transitions. [2023-08-25 04:53:58,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 528.3333333333334) internal successors, (3170), 6 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:58,469 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 734 flow. Second operand 6 states and 3170 transitions. [2023-08-25 04:53:58,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 260 transitions, 1645 flow [2023-08-25 04:53:59,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 260 transitions, 1611 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-25 04:53:59,353 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 886 flow [2023-08-25 04:53:59,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2023-08-25 04:53:59,354 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 17 predicate places. [2023-08-25 04:53:59,354 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 886 flow [2023-08-25 04:53:59,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:59,354 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:59,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 04:53:59,354 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:53:59,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1625294698, now seen corresponding path program 6 times [2023-08-25 04:53:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:59,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990288589] [2023-08-25 04:53:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:59,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:53:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990288589] [2023-08-25 04:53:59,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990288589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:59,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:59,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:53:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825653078] [2023-08-25 04:53:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:59,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:53:59,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:53:59,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:53:59,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:53:59,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:53:59,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:59,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:53:59,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:07,144 INFO L124 PetriNetUnfolderBase]: 31299/61807 cut-off events. [2023-08-25 04:54:07,145 INFO L125 PetriNetUnfolderBase]: For 92937/98195 co-relation queries the response was YES. [2023-08-25 04:54:07,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156690 conditions, 61807 events. 31299/61807 cut-off events. For 92937/98195 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 606389 event pairs, 13634 based on Foata normal form. 234/59989 useless extension candidates. Maximal degree in co-relation 156655. Up to 25231 conditions per place. [2023-08-25 04:54:08,134 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 181 selfloop transitions, 14 changer transitions 3/246 dead transitions. [2023-08-25 04:54:08,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 246 transitions, 1689 flow [2023-08-25 04:54:08,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:08,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2644 transitions. [2023-08-25 04:54:08,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46672550750220654 [2023-08-25 04:54:08,138 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2644 transitions. [2023-08-25 04:54:08,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2644 transitions. [2023-08-25 04:54:08,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:08,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2644 transitions. [2023-08-25 04:54:08,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 528.8) internal successors, (2644), 5 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:08,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:08,144 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:08,144 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 886 flow. Second operand 5 states and 2644 transitions. [2023-08-25 04:54:08,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 246 transitions, 1689 flow [2023-08-25 04:54:08,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 246 transitions, 1673 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 04:54:08,793 INFO L231 Difference]: Finished difference. Result has 167 places, 160 transitions, 990 flow [2023-08-25 04:54:08,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=990, PETRI_PLACES=167, PETRI_TRANSITIONS=160} [2023-08-25 04:54:08,794 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 23 predicate places. [2023-08-25 04:54:08,794 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 160 transitions, 990 flow [2023-08-25 04:54:08,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:08,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:08,794 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:08,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 04:54:08,794 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:54:08,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash -391782690, now seen corresponding path program 7 times [2023-08-25 04:54:08,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:08,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043898333] [2023-08-25 04:54:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:08,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:54:09,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043898333] [2023-08-25 04:54:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043898333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:09,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:09,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915288125] [2023-08-25 04:54:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:09,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:09,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:54:09,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 160 transitions, 990 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:09,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:09,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:54:09,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:17,426 INFO L124 PetriNetUnfolderBase]: 34088/68636 cut-off events. [2023-08-25 04:54:17,426 INFO L125 PetriNetUnfolderBase]: For 108484/112855 co-relation queries the response was YES. [2023-08-25 04:54:18,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171562 conditions, 68636 events. 34088/68636 cut-off events. For 108484/112855 co-relation queries the response was YES. Maximal size of possible extension queue 1536. Compared 694876 event pairs, 13226 based on Foata normal form. 494/67142 useless extension candidates. Maximal degree in co-relation 171523. Up to 23965 conditions per place. [2023-08-25 04:54:18,539 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 201 selfloop transitions, 20 changer transitions 4/273 dead transitions. [2023-08-25 04:54:18,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 273 transitions, 1881 flow [2023-08-25 04:54:18,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:54:18,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:54:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3177 transitions. [2023-08-25 04:54:18,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4673433362753751 [2023-08-25 04:54:18,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3177 transitions. [2023-08-25 04:54:18,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3177 transitions. [2023-08-25 04:54:18,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:18,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3177 transitions. [2023-08-25 04:54:18,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 529.5) internal successors, (3177), 6 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:18,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:18,548 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:18,548 INFO L175 Difference]: Start difference. First operand has 167 places, 160 transitions, 990 flow. Second operand 6 states and 3177 transitions. [2023-08-25 04:54:18,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 273 transitions, 1881 flow [2023-08-25 04:54:19,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 273 transitions, 1841 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-25 04:54:19,349 INFO L231 Difference]: Finished difference. Result has 173 places, 165 transitions, 1092 flow [2023-08-25 04:54:19,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1092, PETRI_PLACES=173, PETRI_TRANSITIONS=165} [2023-08-25 04:54:19,349 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 29 predicate places. [2023-08-25 04:54:19,349 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 165 transitions, 1092 flow [2023-08-25 04:54:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:19,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:19,350 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:19,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 04:54:19,350 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:54:19,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -141072581, now seen corresponding path program 1 times [2023-08-25 04:54:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374626836] [2023-08-25 04:54:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-25 04:54:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374626836] [2023-08-25 04:54:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374626836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122799705] [2023-08-25 04:54:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:19,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:19,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:19,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:19,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:54:19,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 165 transitions, 1092 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:19,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:19,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:54:19,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:32,829 INFO L124 PetriNetUnfolderBase]: 39658/99323 cut-off events. [2023-08-25 04:54:32,829 INFO L125 PetriNetUnfolderBase]: For 240679/244962 co-relation queries the response was YES. [2023-08-25 04:54:33,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257162 conditions, 99323 events. 39658/99323 cut-off events. For 240679/244962 co-relation queries the response was YES. Maximal size of possible extension queue 2360. Compared 1255736 event pairs, 11195 based on Foata normal form. 316/97478 useless extension candidates. Maximal degree in co-relation 257120. Up to 18089 conditions per place. [2023-08-25 04:54:34,248 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 313 selfloop transitions, 32 changer transitions 6/399 dead transitions. [2023-08-25 04:54:34,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 399 transitions, 3603 flow [2023-08-25 04:54:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:54:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:54:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3204 transitions. [2023-08-25 04:54:34,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.471315092674316 [2023-08-25 04:54:34,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3204 transitions. [2023-08-25 04:54:34,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3204 transitions. [2023-08-25 04:54:34,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:34,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3204 transitions. [2023-08-25 04:54:34,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 534.0) internal successors, (3204), 6 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:34,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:34,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:34,257 INFO L175 Difference]: Start difference. First operand has 173 places, 165 transitions, 1092 flow. Second operand 6 states and 3204 transitions. [2023-08-25 04:54:34,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 399 transitions, 3603 flow [2023-08-25 04:54:37,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 399 transitions, 3499 flow, removed 19 selfloop flow, removed 2 redundant places. [2023-08-25 04:54:37,446 INFO L231 Difference]: Finished difference. Result has 180 places, 188 transitions, 1439 flow [2023-08-25 04:54:37,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1439, PETRI_PLACES=180, PETRI_TRANSITIONS=188} [2023-08-25 04:54:37,447 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 36 predicate places. [2023-08-25 04:54:37,447 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 188 transitions, 1439 flow [2023-08-25 04:54:37,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:37,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:37,447 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:37,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 04:54:37,448 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:54:37,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash 633794975, now seen corresponding path program 2 times [2023-08-25 04:54:37,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:37,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862781246] [2023-08-25 04:54:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-08-25 04:54:37,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:37,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862781246] [2023-08-25 04:54:37,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862781246] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:37,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:37,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:54:37,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873875630] [2023-08-25 04:54:37,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:37,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:54:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:37,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:54:37,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:54:37,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:54:37,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 188 transitions, 1439 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:37,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:37,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:54:37,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:55,937 INFO L124 PetriNetUnfolderBase]: 47674/123427 cut-off events. [2023-08-25 04:54:55,937 INFO L125 PetriNetUnfolderBase]: For 318087/325751 co-relation queries the response was YES. [2023-08-25 04:54:57,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318638 conditions, 123427 events. 47674/123427 cut-off events. For 318087/325751 co-relation queries the response was YES. Maximal size of possible extension queue 2745. Compared 1623326 event pairs, 21692 based on Foata normal form. 391/120686 useless extension candidates. Maximal degree in co-relation 318592. Up to 40339 conditions per place. [2023-08-25 04:54:57,821 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 294 selfloop transitions, 18 changer transitions 8/368 dead transitions. [2023-08-25 04:54:57,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 368 transitions, 3729 flow [2023-08-25 04:54:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:54:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:54:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2647 transitions. [2023-08-25 04:54:57,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672550750220653 [2023-08-25 04:54:57,824 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2647 transitions. [2023-08-25 04:54:57,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2647 transitions. [2023-08-25 04:54:57,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:57,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2647 transitions. [2023-08-25 04:54:57,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.4) internal successors, (2647), 5 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:57,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:57,829 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:54:57,829 INFO L175 Difference]: Start difference. First operand has 180 places, 188 transitions, 1439 flow. Second operand 5 states and 2647 transitions. [2023-08-25 04:54:57,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 368 transitions, 3729 flow [2023-08-25 04:55:01,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 368 transitions, 3725 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-25 04:55:01,160 INFO L231 Difference]: Finished difference. Result has 187 places, 197 transitions, 1566 flow [2023-08-25 04:55:01,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1435, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1566, PETRI_PLACES=187, PETRI_TRANSITIONS=197} [2023-08-25 04:55:01,161 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 43 predicate places. [2023-08-25 04:55:01,161 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 197 transitions, 1566 flow [2023-08-25 04:55:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:01,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:55:01,162 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:55:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 04:55:01,162 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:55:01,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:55:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash -242198125, now seen corresponding path program 3 times [2023-08-25 04:55:01,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:55:01,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393785147] [2023-08-25 04:55:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:55:01,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:55:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:55:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-25 04:55:01,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:55:01,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393785147] [2023-08-25 04:55:01,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393785147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:55:01,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:55:01,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:55:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334055859] [2023-08-25 04:55:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:55:01,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:55:01,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:55:01,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:55:01,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:55:01,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:55:01,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 197 transitions, 1566 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:01,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:55:01,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:55:01,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:55:17,721 INFO L124 PetriNetUnfolderBase]: 46968/115114 cut-off events. [2023-08-25 04:55:17,721 INFO L125 PetriNetUnfolderBase]: For 318057/328494 co-relation queries the response was YES. [2023-08-25 04:55:19,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312323 conditions, 115114 events. 46968/115114 cut-off events. For 318057/328494 co-relation queries the response was YES. Maximal size of possible extension queue 2622. Compared 1459332 event pairs, 18492 based on Foata normal form. 157/112154 useless extension candidates. Maximal degree in co-relation 312273. Up to 26906 conditions per place. [2023-08-25 04:55:19,868 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 212 selfloop transitions, 30 changer transitions 23/313 dead transitions. [2023-08-25 04:55:19,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 313 transitions, 2908 flow [2023-08-25 04:55:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:55:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:55:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2645 transitions. [2023-08-25 04:55:19,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46690203000882613 [2023-08-25 04:55:19,871 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2645 transitions. [2023-08-25 04:55:19,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2645 transitions. [2023-08-25 04:55:19,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:55:19,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2645 transitions. [2023-08-25 04:55:19,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.0) internal successors, (2645), 5 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:19,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:19,877 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:19,877 INFO L175 Difference]: Start difference. First operand has 187 places, 197 transitions, 1566 flow. Second operand 5 states and 2645 transitions. [2023-08-25 04:55:19,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 313 transitions, 2908 flow [2023-08-25 04:55:23,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 313 transitions, 2893 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 04:55:23,328 INFO L231 Difference]: Finished difference. Result has 192 places, 197 transitions, 1636 flow [2023-08-25 04:55:23,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1551, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1636, PETRI_PLACES=192, PETRI_TRANSITIONS=197} [2023-08-25 04:55:23,329 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 48 predicate places. [2023-08-25 04:55:23,329 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 197 transitions, 1636 flow [2023-08-25 04:55:23,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:23,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:55:23,329 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:55:23,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 04:55:23,329 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:55:23,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:55:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1491917681, now seen corresponding path program 4 times [2023-08-25 04:55:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:55:23,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717763574] [2023-08-25 04:55:23,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:55:23,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:55:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:55:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-25 04:55:23,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:55:23,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717763574] [2023-08-25 04:55:23,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717763574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:55:23,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:55:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:55:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613709590] [2023-08-25 04:55:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:55:23,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:55:23,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:55:23,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:55:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:55:23,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:55:23,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 197 transitions, 1636 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:23,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:55:23,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:55:23,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:55:40,845 INFO L124 PetriNetUnfolderBase]: 46529/120078 cut-off events. [2023-08-25 04:55:40,845 INFO L125 PetriNetUnfolderBase]: For 355467/363876 co-relation queries the response was YES. [2023-08-25 04:55:42,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322895 conditions, 120078 events. 46529/120078 cut-off events. For 355467/363876 co-relation queries the response was YES. Maximal size of possible extension queue 2637. Compared 1564994 event pairs, 22748 based on Foata normal form. 155/117038 useless extension candidates. Maximal degree in co-relation 322843. Up to 40534 conditions per place. [2023-08-25 04:55:42,758 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 271 selfloop transitions, 12 changer transitions 24/355 dead transitions. [2023-08-25 04:55:42,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 355 transitions, 3748 flow [2023-08-25 04:55:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:55:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:55:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2637 transitions. [2023-08-25 04:55:42,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4654898499558694 [2023-08-25 04:55:42,760 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2637 transitions. [2023-08-25 04:55:42,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2637 transitions. [2023-08-25 04:55:42,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:55:42,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2637 transitions. [2023-08-25 04:55:42,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 527.4) internal successors, (2637), 5 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:42,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:42,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:42,765 INFO L175 Difference]: Start difference. First operand has 192 places, 197 transitions, 1636 flow. Second operand 5 states and 2637 transitions. [2023-08-25 04:55:42,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 355 transitions, 3748 flow [2023-08-25 04:55:46,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 355 transitions, 3638 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-25 04:55:46,222 INFO L231 Difference]: Finished difference. Result has 193 places, 198 transitions, 1615 flow [2023-08-25 04:55:46,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1615, PETRI_PLACES=193, PETRI_TRANSITIONS=198} [2023-08-25 04:55:46,222 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 49 predicate places. [2023-08-25 04:55:46,223 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 198 transitions, 1615 flow [2023-08-25 04:55:46,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:46,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:55:46,223 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:55:46,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 04:55:46,223 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:55:46,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:55:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1165409215, now seen corresponding path program 5 times [2023-08-25 04:55:46,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:55:46,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547033741] [2023-08-25 04:55:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:55:46,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:55:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:55:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-25 04:55:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:55:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547033741] [2023-08-25 04:55:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547033741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:55:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:55:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:55:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332831733] [2023-08-25 04:55:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:55:46,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:55:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:55:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:55:46,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:55:46,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-25 04:55:46,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 198 transitions, 1615 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:55:46,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:55:46,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-25 04:55:46,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:56:08,745 INFO L124 PetriNetUnfolderBase]: 54219/139140 cut-off events. [2023-08-25 04:56:08,745 INFO L125 PetriNetUnfolderBase]: For 352715/360120 co-relation queries the response was YES. [2023-08-25 04:56:10,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360263 conditions, 139140 events. 54219/139140 cut-off events. For 352715/360120 co-relation queries the response was YES. Maximal size of possible extension queue 2858. Compared 1842175 event pairs, 21000 based on Foata normal form. 162/135261 useless extension candidates. Maximal degree in co-relation 360210. Up to 35453 conditions per place. [2023-08-25 04:56:11,462 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 260 selfloop transitions, 45 changer transitions 24/377 dead transitions. [2023-08-25 04:56:11,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 377 transitions, 3953 flow [2023-08-25 04:56:11,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:56:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:56:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2647 transitions. [2023-08-25 04:56:11,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672550750220653 [2023-08-25 04:56:11,464 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2647 transitions. [2023-08-25 04:56:11,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2647 transitions. [2023-08-25 04:56:11,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:56:11,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2647 transitions. [2023-08-25 04:56:11,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.4) internal successors, (2647), 5 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:56:11,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:56:11,469 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:56:11,469 INFO L175 Difference]: Start difference. First operand has 193 places, 198 transitions, 1615 flow. Second operand 5 states and 2647 transitions. [2023-08-25 04:56:11,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 377 transitions, 3953 flow [2023-08-25 04:56:14,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 377 transitions, 3931 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 04:56:14,639 INFO L231 Difference]: Finished difference. Result has 197 places, 229 transitions, 2285 flow [2023-08-25 04:56:14,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2285, PETRI_PLACES=197, PETRI_TRANSITIONS=229} [2023-08-25 04:56:14,639 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 53 predicate places. [2023-08-25 04:56:14,639 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 229 transitions, 2285 flow [2023-08-25 04:56:14,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:56:14,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:56:14,640 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:56:14,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 04:56:14,640 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-25 04:56:14,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:56:14,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1458324888, now seen corresponding path program 1 times [2023-08-25 04:56:14,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:56:14,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299687184] [2023-08-25 04:56:14,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:56:14,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:56:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:56:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:56:17,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:56:17,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299687184] [2023-08-25 04:56:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299687184] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:56:17,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780715286] [2023-08-25 04:56:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:56:17,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:56:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:56:17,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:56:17,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 04:56:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:56:17,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 04:56:17,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:56:18,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 04:56:18,761 INFO L322 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2023-08-25 04:56:18,762 INFO L351 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 41 treesize of output 44 [2023-08-25 04:56:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:56:18,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:56:19,951 INFO L322 Elim1Store]: treesize reduction 32, result has 73.6 percent of original size [2023-08-25 04:56:19,951 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 102 [2023-08-25 04:56:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-25 04:56:20,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780715286] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:56:20,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:56:20,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 14] total 44 [2023-08-25 04:56:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846803197] [2023-08-25 04:56:20,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:56:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-08-25 04:56:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:56:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-08-25 04:56:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1810, Unknown=0, NotChecked=0, Total=1980 [2023-08-25 04:56:20,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 1133 [2023-08-25 04:56:20,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 229 transitions, 2285 flow. Second operand has 45 states, 45 states have (on average 406.84444444444443) internal successors, (18308), 45 states have internal predecessors, (18308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:56:20,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:56:20,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 1133 [2023-08-25 04:56:20,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand