/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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:58:22,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:58:22,197 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 17:58:22,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:58:22,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:58:22,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:58:22,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:58:22,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:58:22,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:58:22,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:58:22,246 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:58:22,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:58:22,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:58:22,248 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:58:22,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:58:22,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:58:22,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:58:22,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:58:22,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:58:22,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:58:22,250 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:58:22,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:58:22,256 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:58:22,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:58:22,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:58:22,260 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:58:22,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:58:22,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:22,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:58:22,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:58:22,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:58:22,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:58:22,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:58:22,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:58:22,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:58:22,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:58:22,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:58:22,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:58:22,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:58:22,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:58:22,638 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:58:22,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2023-08-25 17:58:23,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:58:24,105 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:58:24,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2023-08-25 17:58:24,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a418228/a54452915f144683959dda2b37dff727/FLAG2ebb0a685 [2023-08-25 17:58:24,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a418228/a54452915f144683959dda2b37dff727 [2023-08-25 17:58:24,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:58:24,149 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:58:24,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:24,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:58:24,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:58:24,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459f573d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24, skipping insertion in model container [2023-08-25 17:58:24,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,215 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:58:24,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:24,568 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:58:24,600 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:58:24,602 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 17:58:24,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:58:24,674 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:58:24,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24 WrapperNode [2023-08-25 17:58:24,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:58:24,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:24,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:58:24,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:58:24,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,721 INFO L138 Inliner]: procedures = 165, calls = 25, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 130 [2023-08-25 17:58:24,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:58:24,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:58:24,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:58:24,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:58:24,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:58:24,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:58:24,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:58:24,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:58:24,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (1/1) ... [2023-08-25 17:58:24,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:58:24,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:24,787 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 17:58:24,798 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 17:58:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-08-25 17:58:24,824 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-08-25 17:58:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:58:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:58:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:58:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:58:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:58:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:58:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:58:24,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:58:24,828 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 17:58:24,971 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:58:24,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:58:25,168 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:58:25,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:58:25,175 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 17:58:25,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:25 BoogieIcfgContainer [2023-08-25 17:58:25,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:58:25,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:58:25,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:58:25,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:58:25,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:58:24" (1/3) ... [2023-08-25 17:58:25,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b45f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:25, skipping insertion in model container [2023-08-25 17:58:25,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:58:24" (2/3) ... [2023-08-25 17:58:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b45f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:58:25, skipping insertion in model container [2023-08-25 17:58:25,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:58:25" (3/3) ... [2023-08-25 17:58:25,189 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2023-08-25 17:58:25,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:58:25,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-25 17:58:25,205 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:58:25,300 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:58:25,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 150 transitions, 305 flow [2023-08-25 17:58:25,427 INFO L124 PetriNetUnfolderBase]: 12/149 cut-off events. [2023-08-25 17:58:25,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:25,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 12/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 323 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2023-08-25 17:58:25,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 150 transitions, 305 flow [2023-08-25 17:58:25,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 149 transitions, 301 flow [2023-08-25 17:58:25,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:58:25,462 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 149 transitions, 301 flow [2023-08-25 17:58:25,469 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 149 transitions, 301 flow [2023-08-25 17:58:25,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 149 transitions, 301 flow [2023-08-25 17:58:25,523 INFO L124 PetriNetUnfolderBase]: 12/149 cut-off events. [2023-08-25 17:58:25,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:25,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 12/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 325 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2023-08-25 17:58:25,529 INFO L119 LiptonReduction]: Number of co-enabled transitions 5680 [2023-08-25 17:58:28,693 INFO L134 LiptonReduction]: Checked pairs total: 22067 [2023-08-25 17:58:28,694 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-08-25 17:58:28,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:58:28,711 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;@3b50b72c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:58:28,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-25 17:58:28,712 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:58:28,712 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:58:28,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:28,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:28,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:58:28,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:28,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:28,717 INFO L85 PathProgramCache]: Analyzing trace with hash 578, now seen corresponding path program 1 times [2023-08-25 17:58:28,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:28,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359875263] [2023-08-25 17:58:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:28,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:28,808 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 17:58:28,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:28,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359875263] [2023-08-25 17:58:28,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359875263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:28,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:28,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:58:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131934678] [2023-08-25 17:58:28,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:28,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:58:28,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:58:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:58:28,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 271 [2023-08-25 17:58:28,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 117 flow. Second operand has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 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 17:58:28,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:28,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 271 [2023-08-25 17:58:28,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:28,917 INFO L124 PetriNetUnfolderBase]: 94/306 cut-off events. [2023-08-25 17:58:28,918 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:28,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 306 events. 94/306 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1550 event pairs, 53 based on Foata normal form. 14/233 useless extension candidates. Maximal degree in co-relation 466. Up to 165 conditions per place. [2023-08-25 17:58:28,921 INFO L140 encePairwiseOnDemand]: 267/271 looper letters, 21 selfloop transitions, 0 changer transitions 0/53 dead transitions. [2023-08-25 17:58:28,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 151 flow [2023-08-25 17:58:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:58:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:58:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 303 transitions. [2023-08-25 17:58:28,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.559040590405904 [2023-08-25 17:58:28,934 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 303 transitions. [2023-08-25 17:58:28,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 303 transitions. [2023-08-25 17:58:28,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:28,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 303 transitions. [2023-08-25 17:58:28,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.5) internal successors, (303), 2 states have internal predecessors, (303), 0 states have call successors, (0), 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 17:58:28,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 17:58:28,945 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 17:58:28,947 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 117 flow. Second operand 2 states and 303 transitions. [2023-08-25 17:58:28,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 151 flow [2023-08-25 17:58:28,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:28,951 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 108 flow [2023-08-25 17:58:28,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=108, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2023-08-25 17:58:28,955 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2023-08-25 17:58:28,956 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 108 flow [2023-08-25 17:58:28,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 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 17:58:28,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:28,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 17:58:28,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:58:28,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:28,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -164531742, now seen corresponding path program 1 times [2023-08-25 17:58:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:28,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314619007] [2023-08-25 17:58:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:29,068 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 17:58:29,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:29,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314619007] [2023-08-25 17:58:29,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314619007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:29,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:29,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:29,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648385503] [2023-08-25 17:58:29,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:29,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:29,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:29,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:29,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:29,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 271 [2023-08-25 17:58:29,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 17:58:29,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:29,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 271 [2023-08-25 17:58:29,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:29,272 INFO L124 PetriNetUnfolderBase]: 504/1112 cut-off events. [2023-08-25 17:58:29,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:58:29,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2128 conditions, 1112 events. 504/1112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5726 event pairs, 123 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 2125. Up to 669 conditions per place. [2023-08-25 17:58:29,280 INFO L140 encePairwiseOnDemand]: 248/271 looper letters, 63 selfloop transitions, 16 changer transitions 0/88 dead transitions. [2023-08-25 17:58:29,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 88 transitions, 336 flow [2023-08-25 17:58:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-08-25 17:58:29,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079950799507995 [2023-08-25 17:58:29,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-08-25 17:58:29,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-08-25 17:58:29,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:29,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-08-25 17:58:29,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 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 17:58:29,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,288 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 108 flow. Second operand 3 states and 413 transitions. [2023-08-25 17:58:29,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 88 transitions, 336 flow [2023-08-25 17:58:29,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 88 transitions, 336 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:58:29,290 INFO L231 Difference]: Finished difference. Result has 56 places, 69 transitions, 250 flow [2023-08-25 17:58:29,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=56, PETRI_TRANSITIONS=69} [2023-08-25 17:58:29,291 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2023-08-25 17:58:29,291 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 69 transitions, 250 flow [2023-08-25 17:58:29,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 17:58:29,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:29,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:29,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:58:29,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:29,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1880769105, now seen corresponding path program 1 times [2023-08-25 17:58:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:29,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670833473] [2023-08-25 17:58:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:29,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:29,435 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 17:58:29,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:29,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670833473] [2023-08-25 17:58:29,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670833473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:29,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:58:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204689937] [2023-08-25 17:58:29,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:29,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:29,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:29,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:29,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 271 [2023-08-25 17:58:29,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 69 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 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 17:58:29,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:29,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 271 [2023-08-25 17:58:29,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:29,585 INFO L124 PetriNetUnfolderBase]: 481/1220 cut-off events. [2023-08-25 17:58:29,586 INFO L125 PetriNetUnfolderBase]: For 150/156 co-relation queries the response was YES. [2023-08-25 17:58:29,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2640 conditions, 1220 events. 481/1220 cut-off events. For 150/156 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6985 event pairs, 210 based on Foata normal form. 0/988 useless extension candidates. Maximal degree in co-relation 2635. Up to 650 conditions per place. [2023-08-25 17:58:29,593 INFO L140 encePairwiseOnDemand]: 263/271 looper letters, 39 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2023-08-25 17:58:29,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 82 transitions, 370 flow [2023-08-25 17:58:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 419 transitions. [2023-08-25 17:58:29,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5153751537515375 [2023-08-25 17:58:29,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 419 transitions. [2023-08-25 17:58:29,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 419 transitions. [2023-08-25 17:58:29,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:29,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 419 transitions. [2023-08-25 17:58:29,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 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 17:58:29,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,599 INFO L175 Difference]: Start difference. First operand has 56 places, 69 transitions, 250 flow. Second operand 3 states and 419 transitions. [2023-08-25 17:58:29,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 82 transitions, 370 flow [2023-08-25 17:58:29,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:58:29,605 INFO L231 Difference]: Finished difference. Result has 58 places, 71 transitions, 252 flow [2023-08-25 17:58:29,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=58, PETRI_TRANSITIONS=71} [2023-08-25 17:58:29,606 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places. [2023-08-25 17:58:29,606 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 71 transitions, 252 flow [2023-08-25 17:58:29,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 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 17:58:29,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:29,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:29,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:58:29,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:29,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:29,608 INFO L85 PathProgramCache]: Analyzing trace with hash 282531255, now seen corresponding path program 1 times [2023-08-25 17:58:29,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:29,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201839702] [2023-08-25 17:58:29,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:29,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:29,647 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 17:58:29,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:29,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201839702] [2023-08-25 17:58:29,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201839702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:29,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:29,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845618418] [2023-08-25 17:58:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:29,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:29,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:29,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 271 [2023-08-25 17:58:29,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 71 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 17:58:29,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:29,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 271 [2023-08-25 17:58:29,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:29,892 INFO L124 PetriNetUnfolderBase]: 626/1443 cut-off events. [2023-08-25 17:58:29,892 INFO L125 PetriNetUnfolderBase]: For 356/360 co-relation queries the response was YES. [2023-08-25 17:58:29,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3593 conditions, 1443 events. 626/1443 cut-off events. For 356/360 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7903 event pairs, 229 based on Foata normal form. 4/1242 useless extension candidates. Maximal degree in co-relation 3587. Up to 1104 conditions per place. [2023-08-25 17:58:29,899 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 86 selfloop transitions, 16 changer transitions 1/112 dead transitions. [2023-08-25 17:58:29,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 112 transitions, 610 flow [2023-08-25 17:58:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:29,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-25 17:58:29,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4821648216482165 [2023-08-25 17:58:29,901 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-25 17:58:29,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-25 17:58:29,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:29,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-25 17:58:29,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 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 17:58:29,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:29,905 INFO L175 Difference]: Start difference. First operand has 58 places, 71 transitions, 252 flow. Second operand 3 states and 392 transitions. [2023-08-25 17:58:29,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 112 transitions, 610 flow [2023-08-25 17:58:29,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 112 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:58:29,910 INFO L231 Difference]: Finished difference. Result has 60 places, 85 transitions, 388 flow [2023-08-25 17:58:29,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=60, PETRI_TRANSITIONS=85} [2023-08-25 17:58:29,911 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 6 predicate places. [2023-08-25 17:58:29,911 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 85 transitions, 388 flow [2023-08-25 17:58:29,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 17:58:29,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:29,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:29,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:58:29,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:29,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash 670149152, now seen corresponding path program 1 times [2023-08-25 17:58:29,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:29,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511327283] [2023-08-25 17:58:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:29,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:30,028 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 17:58:30,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:30,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511327283] [2023-08-25 17:58:30,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511327283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:30,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:30,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:58:30,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27983580] [2023-08-25 17:58:30,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:30,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:30,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:30,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:30,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:30,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 271 [2023-08-25 17:58:30,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 85 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 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 17:58:30,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:30,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 271 [2023-08-25 17:58:30,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:30,071 INFO L124 PetriNetUnfolderBase]: 31/146 cut-off events. [2023-08-25 17:58:30,072 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-25 17:58:30,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 146 events. 31/146 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 358 event pairs, 2 based on Foata normal form. 12/146 useless extension candidates. Maximal degree in co-relation 329. Up to 58 conditions per place. [2023-08-25 17:58:30,073 INFO L140 encePairwiseOnDemand]: 265/271 looper letters, 16 selfloop transitions, 6 changer transitions 4/51 dead transitions. [2023-08-25 17:58:30,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 236 flow [2023-08-25 17:58:30,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-25 17:58:30,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4993849938499385 [2023-08-25 17:58:30,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-25 17:58:30,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-25 17:58:30,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:30,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-25 17:58:30,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 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 17:58:30,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:30,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:30,080 INFO L175 Difference]: Start difference. First operand has 60 places, 85 transitions, 388 flow. Second operand 3 states and 406 transitions. [2023-08-25 17:58:30,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 236 flow [2023-08-25 17:58:30,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 51 transitions, 188 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-25 17:58:30,082 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 132 flow [2023-08-25 17:58:30,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-25 17:58:30,083 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2023-08-25 17:58:30,083 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 132 flow [2023-08-25 17:58:30,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 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 17:58:30,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:30,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:30,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:58:30,084 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:30,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1553111101, now seen corresponding path program 1 times [2023-08-25 17:58:30,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:30,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001054329] [2023-08-25 17:58:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:30,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:30,144 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 17:58:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:30,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001054329] [2023-08-25 17:58:30,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001054329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:30,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:30,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:58:30,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570946424] [2023-08-25 17:58:30,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:30,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:58:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:30,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:58:30,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:58:30,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 271 [2023-08-25 17:58:30,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 0 states have call successors, (0), 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 17:58:30,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:30,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 271 [2023-08-25 17:58:30,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:30,231 INFO L124 PetriNetUnfolderBase]: 30/144 cut-off events. [2023-08-25 17:58:30,231 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 17:58:30,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 144 events. 30/144 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 319 event pairs, 14 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 305. Up to 46 conditions per place. [2023-08-25 17:58:30,232 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 33 selfloop transitions, 8 changer transitions 3/61 dead transitions. [2023-08-25 17:58:30,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 266 flow [2023-08-25 17:58:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:58:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:58:30,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 784 transitions. [2023-08-25 17:58:30,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4821648216482165 [2023-08-25 17:58:30,235 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 784 transitions. [2023-08-25 17:58:30,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 784 transitions. [2023-08-25 17:58:30,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:30,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 784 transitions. [2023-08-25 17:58:30,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 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 17:58:30,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 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 17:58:30,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 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 17:58:30,240 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 132 flow. Second operand 6 states and 784 transitions. [2023-08-25 17:58:30,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 266 flow [2023-08-25 17:58:30,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 61 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:30,242 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 175 flow [2023-08-25 17:58:30,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=175, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2023-08-25 17:58:30,243 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-08-25 17:58:30,243 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 175 flow [2023-08-25 17:58:30,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 0 states have call successors, (0), 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 17:58:30,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:30,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:30,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:58:30,244 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:30,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:30,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2089472494, now seen corresponding path program 1 times [2023-08-25 17:58:30,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:30,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244113972] [2023-08-25 17:58:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:30,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:30,278 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 17:58:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244113972] [2023-08-25 17:58:30,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244113972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:30,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:58:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654986017] [2023-08-25 17:58:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:30,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:58:30,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:30,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:58:30,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:58:30,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 271 [2023-08-25 17:58:30,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 17:58:30,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:30,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 271 [2023-08-25 17:58:30,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:30,329 INFO L124 PetriNetUnfolderBase]: 45/173 cut-off events. [2023-08-25 17:58:30,330 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-25 17:58:30,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 173 events. 45/173 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 372 event pairs, 30 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 403. Up to 143 conditions per place. [2023-08-25 17:58:30,331 INFO L140 encePairwiseOnDemand]: 268/271 looper letters, 35 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-25 17:58:30,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 249 flow [2023-08-25 17:58:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:58:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:58:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-08-25 17:58:30,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4317343173431734 [2023-08-25 17:58:30,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-08-25 17:58:30,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-08-25 17:58:30,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:30,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-08-25 17:58:30,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 17:58:30,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:30,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 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 17:58:30,335 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 175 flow. Second operand 3 states and 351 transitions. [2023-08-25 17:58:30,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 249 flow [2023-08-25 17:58:30,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 48 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:58:30,337 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 175 flow [2023-08-25 17:58:30,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2023-08-25 17:58:30,338 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2023-08-25 17:58:30,338 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 175 flow [2023-08-25 17:58:30,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 17:58:30,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:30,339 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:30,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:58:30,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:30,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1755648351, now seen corresponding path program 2 times [2023-08-25 17:58:30,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:30,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266385140] [2023-08-25 17:58:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:30,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266385140] [2023-08-25 17:58:30,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266385140] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 17:58:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162739015] [2023-08-25 17:58:30,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 17:58:30,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:58:30,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:58:30,479 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 17:58:30,553 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 17:58:30,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 17:58:30,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 17:58:30,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 17:58:30,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 17:58:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:30,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 17:58:30,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162739015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:30,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 17:58:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-08-25 17:58:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931396018] [2023-08-25 17:58:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 17:58:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 17:58:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:58:30,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 271 [2023-08-25 17:58:30,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 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 17:58:30,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:30,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 271 [2023-08-25 17:58:30,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:30,896 INFO L124 PetriNetUnfolderBase]: 41/199 cut-off events. [2023-08-25 17:58:30,896 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-08-25 17:58:30,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 199 events. 41/199 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 520 event pairs, 17 based on Foata normal form. 1/192 useless extension candidates. Maximal degree in co-relation 451. Up to 55 conditions per place. [2023-08-25 17:58:30,897 INFO L140 encePairwiseOnDemand]: 263/271 looper letters, 47 selfloop transitions, 13 changer transitions 3/79 dead transitions. [2023-08-25 17:58:30,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 421 flow [2023-08-25 17:58:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:58:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:58:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1167 transitions. [2023-08-25 17:58:30,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4784747847478475 [2023-08-25 17:58:30,901 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1167 transitions. [2023-08-25 17:58:30,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1167 transitions. [2023-08-25 17:58:30,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:30,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1167 transitions. [2023-08-25 17:58:30,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.66666666666666) internal successors, (1167), 9 states have internal predecessors, (1167), 0 states have call successors, (0), 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 17:58:30,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 271.0) internal successors, (2710), 10 states have internal predecessors, (2710), 0 states have call successors, (0), 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 17:58:30,908 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 271.0) internal successors, (2710), 10 states have internal predecessors, (2710), 0 states have call successors, (0), 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 17:58:30,908 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 175 flow. Second operand 9 states and 1167 transitions. [2023-08-25 17:58:30,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 421 flow [2023-08-25 17:58:30,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 79 transitions, 417 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:58:30,911 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 279 flow [2023-08-25 17:58:30,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2023-08-25 17:58:30,914 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2023-08-25 17:58:30,914 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 279 flow [2023-08-25 17:58:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 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 17:58:30,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:30,915 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:30,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 17:58:31,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 17:58:31,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:31,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash 238980208, now seen corresponding path program 1 times [2023-08-25 17:58:31,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:31,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809251720] [2023-08-25 17:58:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:31,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:31,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809251720] [2023-08-25 17:58:31,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809251720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:31,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:31,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:58:31,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903255276] [2023-08-25 17:58:31,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:31,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:31,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:31,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 271 [2023-08-25 17:58:31,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 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 17:58:31,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:31,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 271 [2023-08-25 17:58:31,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:31,355 INFO L124 PetriNetUnfolderBase]: 46/225 cut-off events. [2023-08-25 17:58:31,355 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2023-08-25 17:58:31,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 225 events. 46/225 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 614 event pairs, 14 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 566. Up to 54 conditions per place. [2023-08-25 17:58:31,357 INFO L140 encePairwiseOnDemand]: 262/271 looper letters, 39 selfloop transitions, 16 changer transitions 8/79 dead transitions. [2023-08-25 17:58:31,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 79 transitions, 509 flow [2023-08-25 17:58:31,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 17:58:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 17:58:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 915 transitions. [2023-08-25 17:58:31,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823405376910912 [2023-08-25 17:58:31,360 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 915 transitions. [2023-08-25 17:58:31,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 915 transitions. [2023-08-25 17:58:31,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:31,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 915 transitions. [2023-08-25 17:58:31,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.71428571428572) internal successors, (915), 7 states have internal predecessors, (915), 0 states have call successors, (0), 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 17:58:31,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 271.0) internal successors, (2168), 8 states have internal predecessors, (2168), 0 states have call successors, (0), 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 17:58:31,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 271.0) internal successors, (2168), 8 states have internal predecessors, (2168), 0 states have call successors, (0), 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 17:58:31,370 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 279 flow. Second operand 7 states and 915 transitions. [2023-08-25 17:58:31,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 79 transitions, 509 flow [2023-08-25 17:58:31,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 487 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-25 17:58:31,375 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 353 flow [2023-08-25 17:58:31,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=353, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2023-08-25 17:58:31,376 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 17 predicate places. [2023-08-25 17:58:31,377 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 353 flow [2023-08-25 17:58:31,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 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 17:58:31,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:58:31,377 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:31,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:58:31,377 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-25 17:58:31,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:58:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1460571092, now seen corresponding path program 2 times [2023-08-25 17:58:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:58:31,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287705102] [2023-08-25 17:58:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:58:31,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:58:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:58:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:58:31,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:58:31,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287705102] [2023-08-25 17:58:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287705102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:58:31,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:58:31,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 17:58:31,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998056326] [2023-08-25 17:58:31,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:58:31,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:58:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:58:31,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:58:31,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:58:31,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 271 [2023-08-25 17:58:31,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 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 17:58:31,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:58:31,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 271 [2023-08-25 17:58:31,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:58:31,613 INFO L124 PetriNetUnfolderBase]: 43/206 cut-off events. [2023-08-25 17:58:31,613 INFO L125 PetriNetUnfolderBase]: For 394/394 co-relation queries the response was YES. [2023-08-25 17:58:31,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 206 events. 43/206 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 527 event pairs, 18 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 565. Up to 87 conditions per place. [2023-08-25 17:58:31,614 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2023-08-25 17:58:31,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 66 transitions, 469 flow [2023-08-25 17:58:31,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 17:58:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 17:58:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1003 transitions. [2023-08-25 17:58:31,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626383763837638 [2023-08-25 17:58:31,617 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1003 transitions. [2023-08-25 17:58:31,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1003 transitions. [2023-08-25 17:58:31,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:58:31,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1003 transitions. [2023-08-25 17:58:31,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.375) internal successors, (1003), 8 states have internal predecessors, (1003), 0 states have call successors, (0), 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 17:58:31,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 271.0) internal successors, (2439), 9 states have internal predecessors, (2439), 0 states have call successors, (0), 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 17:58:31,624 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 271.0) internal successors, (2439), 9 states have internal predecessors, (2439), 0 states have call successors, (0), 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 17:58:31,624 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 353 flow. Second operand 8 states and 1003 transitions. [2023-08-25 17:58:31,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 66 transitions, 469 flow [2023-08-25 17:58:31,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 66 transitions, 436 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-25 17:58:31,627 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-25 17:58:31,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-08-25 17:58:31,628 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 17 predicate places. [2023-08-25 17:58:31,628 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-25 17:58:31,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 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 17:58:31,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-25 17:58:31,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (11 of 21 remaining) [2023-08-25 17:58:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (10 of 21 remaining) [2023-08-25 17:58:31,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-25 17:58:31,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-25 17:58:31,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (3 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (2 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-25 17:58:31,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-25 17:58:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:58:31,635 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2023-08-25 17:58:31,639 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:58:31,639 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:58:31,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:58:31 BasicIcfg [2023-08-25 17:58:31,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:58:31,643 INFO L158 Benchmark]: Toolchain (without parser) took 7493.97ms. Allocated memory was 358.6MB in the beginning and 486.5MB in the end (delta: 127.9MB). Free memory was 333.6MB in the beginning and 187.9MB in the end (delta: 145.8MB). Peak memory consumption was 275.3MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,643 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 358.6MB. Free memory is still 336.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:58:31,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.33ms. Allocated memory is still 358.6MB. Free memory was 333.6MB in the beginning and 313.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 358.6MB. Free memory was 313.7MB in the beginning and 311.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,644 INFO L158 Benchmark]: Boogie Preprocessor took 23.53ms. Allocated memory is still 358.6MB. Free memory was 311.5MB in the beginning and 310.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,644 INFO L158 Benchmark]: RCFGBuilder took 417.24ms. Allocated memory is still 358.6MB. Free memory was 310.0MB in the beginning and 293.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,645 INFO L158 Benchmark]: TraceAbstraction took 6463.11ms. Allocated memory was 358.6MB in the beginning and 486.5MB in the end (delta: 127.9MB). Free memory was 292.7MB in the beginning and 187.9MB in the end (delta: 104.9MB). Peak memory consumption was 235.5MB. Max. memory is 16.0GB. [2023-08-25 17:58:31,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 358.6MB. Free memory is still 336.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 523.33ms. Allocated memory is still 358.6MB. Free memory was 333.6MB in the beginning and 313.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 358.6MB. Free memory was 313.7MB in the beginning and 311.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.53ms. Allocated memory is still 358.6MB. Free memory was 311.5MB in the beginning and 310.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 417.24ms. Allocated memory is still 358.6MB. Free memory was 310.0MB in the beginning and 293.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6463.11ms. Allocated memory was 358.6MB in the beginning and 486.5MB in the end (delta: 127.9MB). Free memory was 292.7MB in the beginning and 187.9MB in the end (delta: 104.9MB). Peak memory consumption was 235.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 141 PlacesBefore, 54 PlacesAfterwards, 149 TransitionsBefore, 57 TransitionsAfterwards, 5680 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 121 TotalNumberOfCompositions, 22067 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9402, independent: 8765, independent conditional: 0, independent unconditional: 8765, dependent: 637, dependent conditional: 0, dependent unconditional: 637, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3015, independent: 2925, independent conditional: 0, independent unconditional: 2925, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9402, independent: 5840, independent conditional: 0, independent unconditional: 5840, dependent: 547, dependent conditional: 0, dependent unconditional: 547, unknown: 3015, unknown conditional: 0, unknown unconditional: 3015] , Statistics on independence cache: Total cache size (in pairs): 447, Positive cache size: 393, Positive conditional cache size: 0, Positive unconditional cache size: 393, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 203 locations, 21 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: 6.3s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 824 IncrementalHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 60 mSDtfsCounter, 824 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred in iteration=4, InterpolantAutomatonStates: 47, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 559 SizeOfPredicates, 4 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 33/41 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:58:31,662 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...