/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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/parallel-misc-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:42:00,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:42:00,779 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 19:42:00,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:42:00,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:42:00,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:42:00,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:42:00,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:42:00,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:42:00,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:42:00,827 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:42:00,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:42:00,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:42:00,828 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:42:00,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:42:00,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:42:00,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:42:00,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:42:00,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:42:00,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:42:00,830 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:42:00,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:42:00,830 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:42:00,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:42:00,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:42:00,831 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:42:00,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:42:00,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:00,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:42:00,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:42:00,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:42:00,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:42:00,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:42:00,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:42:00,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:42:00,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:42:01,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:42:01,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:42:01,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:42:01,189 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:42:01,190 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:42:01,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2023-08-25 19:42:02,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:42:02,524 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:42:02,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2023-08-25 19:42:02,533 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67b28439/9258ac668ee9418282b029acf7571a8b/FLAG29cacdad7 [2023-08-25 19:42:02,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67b28439/9258ac668ee9418282b029acf7571a8b [2023-08-25 19:42:02,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:42:02,550 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:42:02,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:02,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:42:02,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:42:02,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6229090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02, skipping insertion in model container [2023-08-25 19:42:02,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,580 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:42:02,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:02,776 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:42:02,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:42:02,825 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:02,825 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:42:02,831 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:42:02,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02 WrapperNode [2023-08-25 19:42:02,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:42:02,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:02,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:42:02,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:42:02,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,882 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-08-25 19:42:02,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:42:02,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:42:02,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:42:02,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:42:02,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:42:02,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:42:02,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:42:02,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:42:02,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (1/1) ... [2023-08-25 19:42:02,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:42:02,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:02,941 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 19:42:02,957 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 19:42:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:42:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:42:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:42:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:42:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:42:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:42:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:42:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:42:02,982 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 19:42:03,079 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:42:03,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:42:03,356 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:42:03,433 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:42:03,433 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 19:42:03,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:03 BoogieIcfgContainer [2023-08-25 19:42:03,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:42:03,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:42:03,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:42:03,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:42:03,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:42:02" (1/3) ... [2023-08-25 19:42:03,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3e6802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:03, skipping insertion in model container [2023-08-25 19:42:03,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:42:02" (2/3) ... [2023-08-25 19:42:03,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3e6802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:42:03, skipping insertion in model container [2023-08-25 19:42:03,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:42:03" (3/3) ... [2023-08-25 19:42:03,447 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2023-08-25 19:42:03,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:42:03,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-25 19:42:03,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:42:03,534 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 19:42:03,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 180 transitions, 376 flow [2023-08-25 19:42:03,655 INFO L124 PetriNetUnfolderBase]: 11/178 cut-off events. [2023-08-25 19:42:03,655 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:42:03,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 178 events. 11/178 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 317 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2023-08-25 19:42:03,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 180 transitions, 376 flow [2023-08-25 19:42:03,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 169 transitions, 350 flow [2023-08-25 19:42:03,675 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:42:03,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 169 transitions, 350 flow [2023-08-25 19:42:03,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 169 transitions, 350 flow [2023-08-25 19:42:03,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 169 transitions, 350 flow [2023-08-25 19:42:03,744 INFO L124 PetriNetUnfolderBase]: 11/169 cut-off events. [2023-08-25 19:42:03,745 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 19:42:03,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 11/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 316 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2023-08-25 19:42:03,753 INFO L119 LiptonReduction]: Number of co-enabled transitions 6776 [2023-08-25 19:42:08,139 INFO L134 LiptonReduction]: Checked pairs total: 7600 [2023-08-25 19:42:08,140 INFO L136 LiptonReduction]: Total number of compositions: 225 [2023-08-25 19:42:08,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:42:08,156 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;@6a07b3cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:42:08,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-08-25 19:42:08,157 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:42:08,158 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:42:08,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:08,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:08,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:42:08,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:08,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash 808, now seen corresponding path program 1 times [2023-08-25 19:42:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339015734] [2023-08-25 19:42:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:08,262 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 19:42:08,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:08,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339015734] [2023-08-25 19:42:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339015734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:08,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:42:08,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378793149] [2023-08-25 19:42:08,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:08,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:42:08,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:08,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:42:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:42:08,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 405 [2023-08-25 19:42:08,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 160.5) internal successors, (321), 2 states have internal predecessors, (321), 0 states have call successors, (0), 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 19:42:08,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:08,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 405 [2023-08-25 19:42:08,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:08,368 INFO L124 PetriNetUnfolderBase]: 21/40 cut-off events. [2023-08-25 19:42:08,369 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-25 19:42:08,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 40 events. 21/40 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 9 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 60. Up to 41 conditions per place. [2023-08-25 19:42:08,370 INFO L140 encePairwiseOnDemand]: 378/405 looper letters, 13 selfloop transitions, 0 changer transitions 0/13 dead transitions. [2023-08-25 19:42:08,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 13 transitions, 64 flow [2023-08-25 19:42:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:42:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:42:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 360 transitions. [2023-08-25 19:42:08,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-25 19:42:08,390 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 360 transitions. [2023-08-25 19:42:08,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 360 transitions. [2023-08-25 19:42:08,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:08,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 360 transitions. [2023-08-25 19:42:08,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 180.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 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 19:42:08,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 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 19:42:08,404 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 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 19:42:08,406 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 2 states and 360 transitions. [2023-08-25 19:42:08,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 13 transitions, 64 flow [2023-08-25 19:42:08,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:42:08,410 INFO L231 Difference]: Finished difference. Result has 15 places, 13 transitions, 30 flow [2023-08-25 19:42:08,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=15, PETRI_TRANSITIONS=13} [2023-08-25 19:42:08,415 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -30 predicate places. [2023-08-25 19:42:08,415 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 13 transitions, 30 flow [2023-08-25 19:42:08,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 160.5) internal successors, (321), 2 states have internal predecessors, (321), 0 states have call successors, (0), 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 19:42:08,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:08,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:08,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:42:08,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:08,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1488186439, now seen corresponding path program 1 times [2023-08-25 19:42:08,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:08,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515831248] [2023-08-25 19:42:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:08,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:08,664 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 19:42:08,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515831248] [2023-08-25 19:42:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515831248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:08,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:08,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:42:08,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461293383] [2023-08-25 19:42:08,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:08,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:42:08,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:42:08,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:42:08,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 405 [2023-08-25 19:42:08,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 13 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 19:42:08,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:08,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 405 [2023-08-25 19:42:08,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:08,708 INFO L124 PetriNetUnfolderBase]: 29/54 cut-off events. [2023-08-25 19:42:08,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:42:08,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 54 events. 29/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 1 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 112. Up to 45 conditions per place. [2023-08-25 19:42:08,709 INFO L140 encePairwiseOnDemand]: 402/405 looper letters, 17 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-08-25 19:42:08,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 19 transitions, 81 flow [2023-08-25 19:42:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:42:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:42:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2023-08-25 19:42:08,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3991769547325103 [2023-08-25 19:42:08,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:08,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 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 19:42:08,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 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 19:42:08,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 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 19:42:08,717 INFO L175 Difference]: Start difference. First operand has 15 places, 13 transitions, 30 flow. Second operand 3 states and 485 transitions. [2023-08-25 19:42:08,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 19 transitions, 81 flow [2023-08-25 19:42:08,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 81 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:42:08,718 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 42 flow [2023-08-25 19:42:08,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2023-08-25 19:42:08,719 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -27 predicate places. [2023-08-25 19:42:08,719 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 42 flow [2023-08-25 19:42:08,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 19:42:08,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:08,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:08,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:42:08,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:08,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1091887266, now seen corresponding path program 1 times [2023-08-25 19:42:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:08,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622916095] [2023-08-25 19:42:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:08,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:42:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622916095] [2023-08-25 19:42:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622916095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:42:08,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:42:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:42:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200378420] [2023-08-25 19:42:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:42:08,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:42:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:42:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:42:08,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 405 [2023-08-25 19:42:08,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 19:42:08,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:08,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 405 [2023-08-25 19:42:08,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:08,846 INFO L124 PetriNetUnfolderBase]: 40/73 cut-off events. [2023-08-25 19:42:08,846 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 19:42:08,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 73 events. 40/73 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 6 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 183. Up to 49 conditions per place. [2023-08-25 19:42:08,847 INFO L140 encePairwiseOnDemand]: 402/405 looper letters, 19 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2023-08-25 19:42:08,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 21 transitions, 106 flow [2023-08-25 19:42:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:42:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:42:08,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2023-08-25 19:42:08,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3991769547325103 [2023-08-25 19:42:08,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:08,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2023-08-25 19:42:08,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 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 19:42:08,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 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 19:42:08,854 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 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 19:42:08,854 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 42 flow. Second operand 3 states and 485 transitions. [2023-08-25 19:42:08,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 21 transitions, 106 flow [2023-08-25 19:42:08,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 21 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:42:08,855 INFO L231 Difference]: Finished difference. Result has 20 places, 15 transitions, 52 flow [2023-08-25 19:42:08,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2023-08-25 19:42:08,856 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -25 predicate places. [2023-08-25 19:42:08,856 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 52 flow [2023-08-25 19:42:08,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 19:42:08,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:08,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:08,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:42:08,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:08,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1778149936, now seen corresponding path program 1 times [2023-08-25 19:42:08,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:08,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322555133] [2023-08-25 19:42:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:08,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:42:09,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322555133] [2023-08-25 19:42:09,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322555133] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151012935] [2023-08-25 19:42:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:09,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:09,125 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 19:42:09,159 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 19:42:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:09,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-25 19:42:09,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:09,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:42:09,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151012935] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:09,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:09,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 8 [2023-08-25 19:42:09,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807896681] [2023-08-25 19:42:09,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:09,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:42:09,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:42:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:42:09,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 405 [2023-08-25 19:42:09,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 52 flow. Second operand has 9 states, 9 states have (on average 139.88888888888889) internal successors, (1259), 9 states have internal predecessors, (1259), 0 states have call successors, (0), 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 19:42:09,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:09,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 405 [2023-08-25 19:42:09,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:09,767 INFO L124 PetriNetUnfolderBase]: 65/116 cut-off events. [2023-08-25 19:42:09,768 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-25 19:42:09,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 116 events. 65/116 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 271 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 329. Up to 41 conditions per place. [2023-08-25 19:42:09,772 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 40 selfloop transitions, 18 changer transitions 0/58 dead transitions. [2023-08-25 19:42:09,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 58 transitions, 305 flow [2023-08-25 19:42:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 19:42:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 19:42:09,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1833 transitions. [2023-08-25 19:42:09,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34814814814814815 [2023-08-25 19:42:09,777 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1833 transitions. [2023-08-25 19:42:09,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1833 transitions. [2023-08-25 19:42:09,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:09,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1833 transitions. [2023-08-25 19:42:09,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 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 19:42:09,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 405.0) internal successors, (5670), 14 states have internal predecessors, (5670), 0 states have call successors, (0), 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 19:42:09,797 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 405.0) internal successors, (5670), 14 states have internal predecessors, (5670), 0 states have call successors, (0), 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 19:42:09,797 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 52 flow. Second operand 13 states and 1833 transitions. [2023-08-25 19:42:09,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 58 transitions, 305 flow [2023-08-25 19:42:09,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 58 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:42:09,799 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 184 flow [2023-08-25 19:42:09,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=184, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2023-08-25 19:42:09,800 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -8 predicate places. [2023-08-25 19:42:09,800 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 184 flow [2023-08-25 19:42:09,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 139.88888888888889) internal successors, (1259), 9 states have internal predecessors, (1259), 0 states have call successors, (0), 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 19:42:09,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:09,801 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:09,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 19:42:10,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:10,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:10,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:10,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1914065493, now seen corresponding path program 2 times [2023-08-25 19:42:10,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:10,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719180436] [2023-08-25 19:42:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:10,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:10,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719180436] [2023-08-25 19:42:10,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719180436] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:10,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930915790] [2023-08-25 19:42:10,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:42:10,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:10,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:10,649 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 19:42:10,690 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 19:42:10,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:42:10,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:10,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-25 19:42:10,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:10,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:11,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930915790] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:11,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:11,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-08-25 19:42:11,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924665997] [2023-08-25 19:42:11,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:11,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 19:42:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:11,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 19:42:11,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-08-25 19:42:11,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:11,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 184 flow. Second operand has 17 states, 17 states have (on average 136.23529411764707) internal successors, (2316), 17 states have internal predecessors, (2316), 0 states have call successors, (0), 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 19:42:11,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:11,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:11,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:12,506 INFO L124 PetriNetUnfolderBase]: 203/354 cut-off events. [2023-08-25 19:42:12,506 INFO L125 PetriNetUnfolderBase]: For 721/721 co-relation queries the response was YES. [2023-08-25 19:42:12,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 354 events. 203/354 cut-off events. For 721/721 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1242 event pairs, 0 based on Foata normal form. 2/324 useless extension candidates. Maximal degree in co-relation 1587. Up to 151 conditions per place. [2023-08-25 19:42:12,510 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 68 selfloop transitions, 66 changer transitions 3/137 dead transitions. [2023-08-25 19:42:12,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 137 transitions, 1099 flow [2023-08-25 19:42:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 19:42:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 19:42:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2793 transitions. [2023-08-25 19:42:12,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3448148148148148 [2023-08-25 19:42:12,520 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2793 transitions. [2023-08-25 19:42:12,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2793 transitions. [2023-08-25 19:42:12,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:12,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2793 transitions. [2023-08-25 19:42:12,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 139.65) internal successors, (2793), 20 states have internal predecessors, (2793), 0 states have call successors, (0), 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 19:42:12,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 405.0) internal successors, (8505), 21 states have internal predecessors, (8505), 0 states have call successors, (0), 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 19:42:12,542 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 405.0) internal successors, (8505), 21 states have internal predecessors, (8505), 0 states have call successors, (0), 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 19:42:12,543 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 184 flow. Second operand 20 states and 2793 transitions. [2023-08-25 19:42:12,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 137 transitions, 1099 flow [2023-08-25 19:42:12,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 137 transitions, 1000 flow, removed 43 selfloop flow, removed 2 redundant places. [2023-08-25 19:42:12,554 INFO L231 Difference]: Finished difference. Result has 59 places, 85 transitions, 810 flow [2023-08-25 19:42:12,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=810, PETRI_PLACES=59, PETRI_TRANSITIONS=85} [2023-08-25 19:42:12,556 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 14 predicate places. [2023-08-25 19:42:12,556 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 85 transitions, 810 flow [2023-08-25 19:42:12,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 136.23529411764707) internal successors, (2316), 17 states have internal predecessors, (2316), 0 states have call successors, (0), 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 19:42:12,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:12,558 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:12,565 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 19:42:12,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:12,763 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:12,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -450157171, now seen corresponding path program 3 times [2023-08-25 19:42:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826174494] [2023-08-25 19:42:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:13,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826174494] [2023-08-25 19:42:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826174494] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781135964] [2023-08-25 19:42:13,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:42:13,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:13,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:13,618 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 19:42:13,649 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 19:42:13,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 19:42:13,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:13,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 19:42:13,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:13,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:14,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781135964] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:14,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-25 19:42:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733383814] [2023-08-25 19:42:14,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 19:42:14,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 19:42:14,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-08-25 19:42:14,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:14,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 85 transitions, 810 flow. Second operand has 19 states, 19 states have (on average 136.10526315789474) internal successors, (2586), 19 states have internal predecessors, (2586), 0 states have call successors, (0), 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 19:42:14,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:14,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:14,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:16,574 INFO L124 PetriNetUnfolderBase]: 379/625 cut-off events. [2023-08-25 19:42:16,575 INFO L125 PetriNetUnfolderBase]: For 2319/2319 co-relation queries the response was YES. [2023-08-25 19:42:16,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3412 conditions, 625 events. 379/625 cut-off events. For 2319/2319 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2473 event pairs, 10 based on Foata normal form. 6/589 useless extension candidates. Maximal degree in co-relation 3394. Up to 277 conditions per place. [2023-08-25 19:42:16,585 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 96 selfloop transitions, 134 changer transitions 7/237 dead transitions. [2023-08-25 19:42:16,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 237 transitions, 2590 flow [2023-08-25 19:42:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-25 19:42:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-25 19:42:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4448 transitions. [2023-08-25 19:42:16,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3432098765432099 [2023-08-25 19:42:16,603 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4448 transitions. [2023-08-25 19:42:16,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4448 transitions. [2023-08-25 19:42:16,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:16,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4448 transitions. [2023-08-25 19:42:16,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 139.0) internal successors, (4448), 32 states have internal predecessors, (4448), 0 states have call successors, (0), 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 19:42:16,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 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 19:42:16,639 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 405.0) internal successors, (13365), 33 states have internal predecessors, (13365), 0 states have call successors, (0), 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 19:42:16,639 INFO L175 Difference]: Start difference. First operand has 59 places, 85 transitions, 810 flow. Second operand 32 states and 4448 transitions. [2023-08-25 19:42:16,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 237 transitions, 2590 flow [2023-08-25 19:42:16,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 237 transitions, 1665 flow, removed 456 selfloop flow, removed 4 redundant places. [2023-08-25 19:42:16,660 INFO L231 Difference]: Finished difference. Result has 91 places, 171 transitions, 1390 flow [2023-08-25 19:42:16,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1390, PETRI_PLACES=91, PETRI_TRANSITIONS=171} [2023-08-25 19:42:16,663 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 46 predicate places. [2023-08-25 19:42:16,663 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 171 transitions, 1390 flow [2023-08-25 19:42:16,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 136.10526315789474) internal successors, (2586), 19 states have internal predecessors, (2586), 0 states have call successors, (0), 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 19:42:16,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:16,664 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:16,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 19:42:16,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:16,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:16,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:16,870 INFO L85 PathProgramCache]: Analyzing trace with hash 726096263, now seen corresponding path program 4 times [2023-08-25 19:42:16,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080346497] [2023-08-25 19:42:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:16,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080346497] [2023-08-25 19:42:17,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080346497] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:17,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348942992] [2023-08-25 19:42:17,357 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:42:17,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:17,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:17,358 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 19:42:17,388 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 19:42:17,453 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:42:17,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:17,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 19:42:17,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:17,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348942992] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:18,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:18,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-25 19:42:18,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195902473] [2023-08-25 19:42:18,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:18,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 19:42:18,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:18,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 19:42:18,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-08-25 19:42:18,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:18,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 171 transitions, 1390 flow. Second operand has 18 states, 18 states have (on average 135.94444444444446) internal successors, (2447), 18 states have internal predecessors, (2447), 0 states have call successors, (0), 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 19:42:18,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:18,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:18,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:19,180 INFO L124 PetriNetUnfolderBase]: 688/1082 cut-off events. [2023-08-25 19:42:19,181 INFO L125 PetriNetUnfolderBase]: For 1621/1621 co-relation queries the response was YES. [2023-08-25 19:42:19,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4840 conditions, 1082 events. 688/1082 cut-off events. For 1621/1621 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4609 event pairs, 8 based on Foata normal form. 7/1037 useless extension candidates. Maximal degree in co-relation 4818. Up to 276 conditions per place. [2023-08-25 19:42:19,190 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 120 selfloop transitions, 246 changer transitions 33/399 dead transitions. [2023-08-25 19:42:19,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 399 transitions, 3824 flow [2023-08-25 19:42:19,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-25 19:42:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-25 19:42:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3746 transitions. [2023-08-25 19:42:19,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34256973022405124 [2023-08-25 19:42:19,199 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3746 transitions. [2023-08-25 19:42:19,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3746 transitions. [2023-08-25 19:42:19,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:19,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3746 transitions. [2023-08-25 19:42:19,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 138.74074074074073) internal successors, (3746), 27 states have internal predecessors, (3746), 0 states have call successors, (0), 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 19:42:19,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 405.0) internal successors, (11340), 28 states have internal predecessors, (11340), 0 states have call successors, (0), 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 19:42:19,221 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 405.0) internal successors, (11340), 28 states have internal predecessors, (11340), 0 states have call successors, (0), 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 19:42:19,221 INFO L175 Difference]: Start difference. First operand has 91 places, 171 transitions, 1390 flow. Second operand 27 states and 3746 transitions. [2023-08-25 19:42:19,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 399 transitions, 3824 flow [2023-08-25 19:42:19,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 399 transitions, 3242 flow, removed 242 selfloop flow, removed 12 redundant places. [2023-08-25 19:42:19,254 INFO L231 Difference]: Finished difference. Result has 120 places, 326 transitions, 3102 flow [2023-08-25 19:42:19,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=3102, PETRI_PLACES=120, PETRI_TRANSITIONS=326} [2023-08-25 19:42:19,255 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 75 predicate places. [2023-08-25 19:42:19,255 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 326 transitions, 3102 flow [2023-08-25 19:42:19,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 135.94444444444446) internal successors, (2447), 18 states have internal predecessors, (2447), 0 states have call successors, (0), 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 19:42:19,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:19,257 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:19,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-25 19:42:19,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:19,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:19,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash 160535055, now seen corresponding path program 5 times [2023-08-25 19:42:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:19,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321094893] [2023-08-25 19:42:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:19,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:20,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:20,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321094893] [2023-08-25 19:42:20,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321094893] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258271675] [2023-08-25 19:42:20,027 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:42:20,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:20,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:20,030 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 19:42:20,048 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 19:42:20,110 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-08-25 19:42:20,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:20,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 19:42:20,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:20,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:20,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258271675] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:20,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:20,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-25 19:42:20,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271966702] [2023-08-25 19:42:20,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:20,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 19:42:20,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:20,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 19:42:20,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-08-25 19:42:20,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:20,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 326 transitions, 3102 flow. Second operand has 18 states, 18 states have (on average 136.05555555555554) internal successors, (2449), 18 states have internal predecessors, (2449), 0 states have call successors, (0), 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 19:42:20,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:20,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:20,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:22,860 INFO L124 PetriNetUnfolderBase]: 2019/3162 cut-off events. [2023-08-25 19:42:22,861 INFO L125 PetriNetUnfolderBase]: For 9339/9339 co-relation queries the response was YES. [2023-08-25 19:42:22,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15552 conditions, 3162 events. 2019/3162 cut-off events. For 9339/9339 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 16803 event pairs, 46 based on Foata normal form. 31/3193 useless extension candidates. Maximal degree in co-relation 15518. Up to 736 conditions per place. [2023-08-25 19:42:22,891 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 280 selfloop transitions, 782 changer transitions 72/1134 dead transitions. [2023-08-25 19:42:22,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 1134 transitions, 12667 flow [2023-08-25 19:42:22,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-25 19:42:22,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-25 19:42:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4890 transitions. [2023-08-25 19:42:22,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.344973544973545 [2023-08-25 19:42:22,900 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4890 transitions. [2023-08-25 19:42:22,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4890 transitions. [2023-08-25 19:42:22,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:22,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4890 transitions. [2023-08-25 19:42:22,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 139.71428571428572) internal successors, (4890), 35 states have internal predecessors, (4890), 0 states have call successors, (0), 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 19:42:22,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 405.0) internal successors, (14580), 36 states have internal predecessors, (14580), 0 states have call successors, (0), 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 19:42:22,931 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 405.0) internal successors, (14580), 36 states have internal predecessors, (14580), 0 states have call successors, (0), 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 19:42:22,931 INFO L175 Difference]: Start difference. First operand has 120 places, 326 transitions, 3102 flow. Second operand 35 states and 4890 transitions. [2023-08-25 19:42:22,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 1134 transitions, 12667 flow [2023-08-25 19:42:23,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 1134 transitions, 12159 flow, removed 240 selfloop flow, removed 6 redundant places. [2023-08-25 19:42:23,299 INFO L231 Difference]: Finished difference. Result has 164 places, 957 transitions, 11330 flow [2023-08-25 19:42:23,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=2920, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=11330, PETRI_PLACES=164, PETRI_TRANSITIONS=957} [2023-08-25 19:42:23,301 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 119 predicate places. [2023-08-25 19:42:23,301 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 957 transitions, 11330 flow [2023-08-25 19:42:23,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 136.05555555555554) internal successors, (2449), 18 states have internal predecessors, (2449), 0 states have call successors, (0), 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 19:42:23,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:23,302 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:23,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:23,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:23,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:23,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:23,507 INFO L85 PathProgramCache]: Analyzing trace with hash 794957413, now seen corresponding path program 6 times [2023-08-25 19:42:23,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:23,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191324767] [2023-08-25 19:42:23,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:23,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:42:23,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:23,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191324767] [2023-08-25 19:42:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191324767] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:23,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503606432] [2023-08-25 19:42:23,927 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:42:23,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:23,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:23,929 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 19:42:23,939 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 19:42:24,043 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 19:42:24,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:24,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 19:42:24,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:42:24,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:42:24,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503606432] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:24,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:24,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 12 [2023-08-25 19:42:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240700036] [2023-08-25 19:42:24,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:24,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 19:42:24,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:24,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 19:42:24,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-08-25 19:42:24,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 405 [2023-08-25 19:42:24,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 957 transitions, 11330 flow. Second operand has 13 states, 13 states have (on average 143.84615384615384) internal successors, (1870), 13 states have internal predecessors, (1870), 0 states have call successors, (0), 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 19:42:24,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:24,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 405 [2023-08-25 19:42:24,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:25,109 INFO L124 PetriNetUnfolderBase]: 1748/2821 cut-off events. [2023-08-25 19:42:25,109 INFO L125 PetriNetUnfolderBase]: For 16433/16433 co-relation queries the response was YES. [2023-08-25 19:42:25,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15965 conditions, 2821 events. 1748/2821 cut-off events. For 16433/16433 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 15245 event pairs, 32 based on Foata normal form. 296/3117 useless extension candidates. Maximal degree in co-relation 15916. Up to 1711 conditions per place. [2023-08-25 19:42:25,138 INFO L140 encePairwiseOnDemand]: 401/405 looper letters, 534 selfloop transitions, 281 changer transitions 66/881 dead transitions. [2023-08-25 19:42:25,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 881 transitions, 11647 flow [2023-08-25 19:42:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:42:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:42:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-08-25 19:42:25,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36090534979423866 [2023-08-25 19:42:25,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-08-25 19:42:25,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-08-25 19:42:25,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:25,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-08-25 19:42:25,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 0 states have call successors, (0), 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 19:42:25,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 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 19:42:25,146 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 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 19:42:25,146 INFO L175 Difference]: Start difference. First operand has 164 places, 957 transitions, 11330 flow. Second operand 6 states and 877 transitions. [2023-08-25 19:42:25,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 881 transitions, 11647 flow [2023-08-25 19:42:25,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 881 transitions, 11072 flow, removed 137 selfloop flow, removed 11 redundant places. [2023-08-25 19:42:25,514 INFO L231 Difference]: Finished difference. Result has 150 places, 773 transitions, 9097 flow [2023-08-25 19:42:25,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=8504, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=792, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9097, PETRI_PLACES=150, PETRI_TRANSITIONS=773} [2023-08-25 19:42:25,515 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 105 predicate places. [2023-08-25 19:42:25,515 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 773 transitions, 9097 flow [2023-08-25 19:42:25,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.84615384615384) internal successors, (1870), 13 states have internal predecessors, (1870), 0 states have call successors, (0), 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 19:42:25,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:25,516 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:25,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:25,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:25,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:25,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash -746950954, now seen corresponding path program 7 times [2023-08-25 19:42:25,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:25,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539751795] [2023-08-25 19:42:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539751795] [2023-08-25 19:42:26,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539751795] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710594813] [2023-08-25 19:42:26,130 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:42:26,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:26,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:26,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:26,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 19:42:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:26,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-25 19:42:26,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:26,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710594813] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:26,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:26,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-08-25 19:42:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382862768] [2023-08-25 19:42:26,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:26,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 19:42:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 19:42:26,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-08-25 19:42:26,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 405 [2023-08-25 19:42:26,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 773 transitions, 9097 flow. Second operand has 15 states, 15 states have (on average 145.4) internal successors, (2181), 15 states have internal predecessors, (2181), 0 states have call successors, (0), 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 19:42:26,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:26,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 405 [2023-08-25 19:42:26,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:27,463 INFO L124 PetriNetUnfolderBase]: 1276/1997 cut-off events. [2023-08-25 19:42:27,463 INFO L125 PetriNetUnfolderBase]: For 7616/7616 co-relation queries the response was YES. [2023-08-25 19:42:27,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11938 conditions, 1997 events. 1276/1997 cut-off events. For 7616/7616 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 9692 event pairs, 20 based on Foata normal form. 176/2173 useless extension candidates. Maximal degree in co-relation 11894. Up to 621 conditions per place. [2023-08-25 19:42:27,484 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 288 selfloop transitions, 429 changer transitions 1/718 dead transitions. [2023-08-25 19:42:27,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 718 transitions, 9532 flow [2023-08-25 19:42:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 19:42:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 19:42:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1472 transitions. [2023-08-25 19:42:27,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3634567901234568 [2023-08-25 19:42:27,486 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1472 transitions. [2023-08-25 19:42:27,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1472 transitions. [2023-08-25 19:42:27,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:27,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1472 transitions. [2023-08-25 19:42:27,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 147.2) internal successors, (1472), 10 states have internal predecessors, (1472), 0 states have call successors, (0), 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 19:42:27,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 405.0) internal successors, (4455), 11 states have internal predecessors, (4455), 0 states have call successors, (0), 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 19:42:27,493 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 405.0) internal successors, (4455), 11 states have internal predecessors, (4455), 0 states have call successors, (0), 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 19:42:27,493 INFO L175 Difference]: Start difference. First operand has 150 places, 773 transitions, 9097 flow. Second operand 10 states and 1472 transitions. [2023-08-25 19:42:27,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 718 transitions, 9532 flow [2023-08-25 19:42:27,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 718 transitions, 9138 flow, removed 42 selfloop flow, removed 12 redundant places. [2023-08-25 19:42:27,673 INFO L231 Difference]: Finished difference. Result has 140 places, 689 transitions, 8430 flow [2023-08-25 19:42:27,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=7181, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8430, PETRI_PLACES=140, PETRI_TRANSITIONS=689} [2023-08-25 19:42:27,674 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 95 predicate places. [2023-08-25 19:42:27,674 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 689 transitions, 8430 flow [2023-08-25 19:42:27,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 145.4) internal successors, (2181), 15 states have internal predecessors, (2181), 0 states have call successors, (0), 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 19:42:27,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:27,675 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:27,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-25 19:42:27,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:27,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:27,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1692085699, now seen corresponding path program 8 times [2023-08-25 19:42:27,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:27,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573290286] [2023-08-25 19:42:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:27,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573290286] [2023-08-25 19:42:28,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573290286] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331545268] [2023-08-25 19:42:28,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 19:42:28,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:28,829 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:28,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 19:42:28,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 19:42:28,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:28,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-25 19:42:28,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:29,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331545268] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:29,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:29,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-08-25 19:42:29,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307445602] [2023-08-25 19:42:29,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:29,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 19:42:29,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 19:42:29,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-08-25 19:42:29,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:29,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 689 transitions, 8430 flow. Second operand has 24 states, 24 states have (on average 135.70833333333334) internal successors, (3257), 24 states have internal predecessors, (3257), 0 states have call successors, (0), 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 19:42:29,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:29,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:29,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:31,426 INFO L124 PetriNetUnfolderBase]: 1626/2578 cut-off events. [2023-08-25 19:42:31,426 INFO L125 PetriNetUnfolderBase]: For 8817/8817 co-relation queries the response was YES. [2023-08-25 19:42:31,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15932 conditions, 2578 events. 1626/2578 cut-off events. For 8817/8817 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 13574 event pairs, 4 based on Foata normal form. 2/2580 useless extension candidates. Maximal degree in co-relation 15896. Up to 912 conditions per place. [2023-08-25 19:42:31,447 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 402 selfloop transitions, 484 changer transitions 54/940 dead transitions. [2023-08-25 19:42:31,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 940 transitions, 12931 flow [2023-08-25 19:42:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-25 19:42:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-25 19:42:31,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3590 transitions. [2023-08-25 19:42:31,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409306742640076 [2023-08-25 19:42:31,454 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3590 transitions. [2023-08-25 19:42:31,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3590 transitions. [2023-08-25 19:42:31,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:31,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3590 transitions. [2023-08-25 19:42:31,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 138.07692307692307) internal successors, (3590), 26 states have internal predecessors, (3590), 0 states have call successors, (0), 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 19:42:31,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 405.0) internal successors, (10935), 27 states have internal predecessors, (10935), 0 states have call successors, (0), 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 19:42:31,468 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 405.0) internal successors, (10935), 27 states have internal predecessors, (10935), 0 states have call successors, (0), 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 19:42:31,468 INFO L175 Difference]: Start difference. First operand has 140 places, 689 transitions, 8430 flow. Second operand 26 states and 3590 transitions. [2023-08-25 19:42:31,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 940 transitions, 12931 flow [2023-08-25 19:42:31,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 940 transitions, 12835 flow, removed 25 selfloop flow, removed 6 redundant places. [2023-08-25 19:42:31,724 INFO L231 Difference]: Finished difference. Result has 173 places, 840 transitions, 11874 flow [2023-08-25 19:42:31,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=8363, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=11874, PETRI_PLACES=173, PETRI_TRANSITIONS=840} [2023-08-25 19:42:31,726 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 128 predicate places. [2023-08-25 19:42:31,726 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 840 transitions, 11874 flow [2023-08-25 19:42:31,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.70833333333334) internal successors, (3257), 24 states have internal predecessors, (3257), 0 states have call successors, (0), 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 19:42:31,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:31,726 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:31,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:31,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-25 19:42:31,932 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:31,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash 125346117, now seen corresponding path program 9 times [2023-08-25 19:42:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:31,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128833452] [2023-08-25 19:42:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128833452] [2023-08-25 19:42:32,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128833452] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190201174] [2023-08-25 19:42:32,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:42:32,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:32,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:32,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:32,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 19:42:32,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 19:42:32,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:32,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-25 19:42:32,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:33,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190201174] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:33,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2023-08-25 19:42:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606847217] [2023-08-25 19:42:33,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 19:42:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 19:42:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-08-25 19:42:33,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:33,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 840 transitions, 11874 flow. Second operand has 23 states, 23 states have (on average 136.04347826086956) internal successors, (3129), 23 states have internal predecessors, (3129), 0 states have call successors, (0), 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 19:42:33,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:33,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:33,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:36,162 INFO L124 PetriNetUnfolderBase]: 3287/5139 cut-off events. [2023-08-25 19:42:36,162 INFO L125 PetriNetUnfolderBase]: For 23061/23061 co-relation queries the response was YES. [2023-08-25 19:42:36,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35620 conditions, 5139 events. 3287/5139 cut-off events. For 23061/23061 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 30044 event pairs, 10 based on Foata normal form. 3/5142 useless extension candidates. Maximal degree in co-relation 35571. Up to 1571 conditions per place. [2023-08-25 19:42:36,211 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 585 selfloop transitions, 1354 changer transitions 12/1951 dead transitions. [2023-08-25 19:42:36,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 1951 transitions, 30606 flow [2023-08-25 19:42:36,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-08-25 19:42:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-08-25 19:42:36,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5690 transitions. [2023-08-25 19:42:36,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34266787112315567 [2023-08-25 19:42:36,227 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5690 transitions. [2023-08-25 19:42:36,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5690 transitions. [2023-08-25 19:42:36,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:36,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5690 transitions. [2023-08-25 19:42:36,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 138.78048780487805) internal successors, (5690), 41 states have internal predecessors, (5690), 0 states have call successors, (0), 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 19:42:36,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 405.0) internal successors, (17010), 42 states have internal predecessors, (17010), 0 states have call successors, (0), 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 19:42:36,247 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 405.0) internal successors, (17010), 42 states have internal predecessors, (17010), 0 states have call successors, (0), 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 19:42:36,247 INFO L175 Difference]: Start difference. First operand has 173 places, 840 transitions, 11874 flow. Second operand 41 states and 5690 transitions. [2023-08-25 19:42:36,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 1951 transitions, 30606 flow [2023-08-25 19:42:36,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 1951 transitions, 29971 flow, removed 172 selfloop flow, removed 8 redundant places. [2023-08-25 19:42:36,996 INFO L231 Difference]: Finished difference. Result has 226 places, 1849 transitions, 31038 flow [2023-08-25 19:42:36,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=11567, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=542, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=31038, PETRI_PLACES=226, PETRI_TRANSITIONS=1849} [2023-08-25 19:42:36,997 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 181 predicate places. [2023-08-25 19:42:36,997 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 1849 transitions, 31038 flow [2023-08-25 19:42:36,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 136.04347826086956) internal successors, (3129), 23 states have internal predecessors, (3129), 0 states have call successors, (0), 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 19:42:36,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:42:36,998 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:42:37,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-25 19:42:37,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:37,199 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-08-25 19:42:37,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:42:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1223520525, now seen corresponding path program 10 times [2023-08-25 19:42:37,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:42:37,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218066307] [2023-08-25 19:42:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:42:37,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:42:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:42:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:42:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218066307] [2023-08-25 19:42:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218066307] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:42:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180377270] [2023-08-25 19:42:38,184 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 19:42:38,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:42:38,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:42:38,189 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:42:38,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 19:42:38,300 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 19:42:38,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:42:38,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 19:42:38,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:42:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:38,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:42:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:42:39,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180377270] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:42:39,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:42:39,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 22 [2023-08-25 19:42:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248324312] [2023-08-25 19:42:39,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:42:39,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 19:42:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:42:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 19:42:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-08-25 19:42:39,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 405 [2023-08-25 19:42:39,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 1849 transitions, 31038 flow. Second operand has 24 states, 24 states have (on average 135.95833333333334) internal successors, (3263), 24 states have internal predecessors, (3263), 0 states have call successors, (0), 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 19:42:39,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:42:39,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 405 [2023-08-25 19:42:39,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:42:42,600 INFO L124 PetriNetUnfolderBase]: 3543/5592 cut-off events. [2023-08-25 19:42:42,600 INFO L125 PetriNetUnfolderBase]: For 32134/32134 co-relation queries the response was YES. [2023-08-25 19:42:42,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44446 conditions, 5592 events. 3543/5592 cut-off events. For 32134/32134 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 33782 event pairs, 2 based on Foata normal form. 14/5606 useless extension candidates. Maximal degree in co-relation 44376. Up to 1659 conditions per place. [2023-08-25 19:42:42,637 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 0 selfloop transitions, 0 changer transitions 2142/2142 dead transitions. [2023-08-25 19:42:42,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 2142 transitions, 38940 flow [2023-08-25 19:42:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-08-25 19:42:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-08-25 19:42:42,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 6339 transitions. [2023-08-25 19:42:42,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34025764895330113 [2023-08-25 19:42:42,645 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 6339 transitions. [2023-08-25 19:42:42,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 6339 transitions. [2023-08-25 19:42:42,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:42:42,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 6339 transitions. [2023-08-25 19:42:42,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 137.80434782608697) internal successors, (6339), 46 states have internal predecessors, (6339), 0 states have call successors, (0), 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 19:42:42,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 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 19:42:42,669 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 405.0) internal successors, (19035), 47 states have internal predecessors, (19035), 0 states have call successors, (0), 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 19:42:42,669 INFO L175 Difference]: Start difference. First operand has 226 places, 1849 transitions, 31038 flow. Second operand 46 states and 6339 transitions. [2023-08-25 19:42:42,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 2142 transitions, 38940 flow [2023-08-25 19:42:44,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 2142 transitions, 38337 flow, removed 264 selfloop flow, removed 6 redundant places. [2023-08-25 19:42:44,230 INFO L231 Difference]: Finished difference. Result has 264 places, 0 transitions, 0 flow [2023-08-25 19:42:44,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=30468, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1848, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1848, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=0, PETRI_PLACES=264, PETRI_TRANSITIONS=0} [2023-08-25 19:42:44,231 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 219 predicate places. [2023-08-25 19:42:44,231 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 0 transitions, 0 flow [2023-08-25 19:42:44,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 135.95833333333334) internal successors, (3263), 24 states have internal predecessors, (3263), 0 states have call successors, (0), 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 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-08-25 19:42:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-08-25 19:42:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (22 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-08-25 19:42:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-08-25 19:42:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-08-25 19:42:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-08-25 19:42:44,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 19:42:44,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 19:42:44,439 INFO L445 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2023-08-25 19:42:44,443 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:42:44,443 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:42:44,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:42:44 BasicIcfg [2023-08-25 19:42:44,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:42:44,446 INFO L158 Benchmark]: Toolchain (without parser) took 41897.77ms. Allocated memory was 354.4MB in the beginning and 1.1GB in the end (delta: 708.8MB). Free memory was 331.1MB in the beginning and 798.7MB in the end (delta: -467.6MB). Peak memory consumption was 709.2MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,446 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 332.4MB in the beginning and 332.2MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:42:44,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.63ms. Allocated memory is still 354.4MB. Free memory was 331.1MB in the beginning and 319.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.13ms. Allocated memory is still 354.4MB. Free memory was 319.3MB in the beginning and 317.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,447 INFO L158 Benchmark]: Boogie Preprocessor took 29.87ms. Allocated memory is still 354.4MB. Free memory was 317.9MB in the beginning and 315.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,447 INFO L158 Benchmark]: RCFGBuilder took 521.78ms. Allocated memory is still 354.4MB. Free memory was 315.8MB in the beginning and 292.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,447 INFO L158 Benchmark]: TraceAbstraction took 41008.67ms. Allocated memory was 354.4MB in the beginning and 1.1GB in the end (delta: 708.8MB). Free memory was 292.1MB in the beginning and 798.7MB in the end (delta: -506.6MB). Peak memory consumption was 671.5MB. Max. memory is 16.0GB. [2023-08-25 19:42:44,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 332.4MB in the beginning and 332.2MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 278.63ms. Allocated memory is still 354.4MB. Free memory was 331.1MB in the beginning and 319.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.13ms. Allocated memory is still 354.4MB. Free memory was 319.3MB in the beginning and 317.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.87ms. Allocated memory is still 354.4MB. Free memory was 317.9MB in the beginning and 315.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 521.78ms. Allocated memory is still 354.4MB. Free memory was 315.8MB in the beginning and 292.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 41008.67ms. Allocated memory was 354.4MB in the beginning and 1.1GB in the end (delta: 708.8MB). Free memory was 292.1MB in the beginning and 798.7MB in the end (delta: -506.6MB). Peak memory consumption was 671.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 165 PlacesBefore, 45 PlacesAfterwards, 169 TransitionsBefore, 40 TransitionsAfterwards, 6776 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 136 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 9 ConcurrentYvCompositions, 9 ChoiceCompositions, 225 TotalNumberOfCompositions, 7600 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7371, independent: 7356, independent conditional: 0, independent unconditional: 7356, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3615, independent: 3607, independent conditional: 0, independent unconditional: 3607, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7371, independent: 3749, independent conditional: 0, independent unconditional: 3749, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 3615, unknown conditional: 0, unknown unconditional: 3615] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 252 locations, 50 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.9s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1196 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1196 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 447 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3213 IncrementalHoareTripleChecker+Invalid, 3660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 447 mSolverCounterUnsat, 0 mSDtfsCounter, 3213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 539 GetRequests, 180 SyntacticMatches, 17 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3638 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31038occurred in iteration=12, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 459 ConstructedInterpolants, 0 QuantifiedInterpolants, 6412 SizeOfPredicates, 177 NumberOfNonLiveVariables, 1502 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 33 InterpolantComputations, 3 PerfectInterpolantSequences, 21/250 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:42:44,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...