/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 PROGRAM_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/04-mutex_12-ptr_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:56:17,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:56:17,681 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 [2023-08-26 06:56:17,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:56:17,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:56:17,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:56:17,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:56:17,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:56:17,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:56:17,711 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:56:17,711 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:56:17,712 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:56:17,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:56:17,712 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:56:17,713 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:56:17,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:56:17,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:56:17,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:56:17,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:56:17,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:56:17,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:56:17,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:56:17,719 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:56:17,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:56:17,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:56:17,720 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:56:17,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:56:17,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:56:17,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:56:17,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:56:17,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:56:17,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:56:17,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:56:17,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:56:17,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:56:17,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:56:18,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:56:18,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:56:18,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:56:18,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:56:18,052 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:56:18,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-08-26 06:56:19,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:56:19,571 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:56:19,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-08-26 06:56:19,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e365615fd/41c842b9d93c4a8a9c0750cf1f0123e0/FLAG3ef701237 [2023-08-26 06:56:19,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e365615fd/41c842b9d93c4a8a9c0750cf1f0123e0 [2023-08-26 06:56:19,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:56:19,610 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:56:19,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:56:19,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:56:19,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:56:19,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:56:19" (1/1) ... [2023-08-26 06:56:19,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b87047c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:19, skipping insertion in model container [2023-08-26 06:56:19,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:56:19" (1/1) ... [2023-08-26 06:56:19,662 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:56:20,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:56:20,085 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:56:20,115 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:56:20,117 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:56:20,123 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-26 06:56:20,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:56:20,197 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:56:20,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20 WrapperNode [2023-08-26 06:56:20,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:56:20,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:56:20,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:56:20,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:56:20,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,244 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-08-26 06:56:20,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:56:20,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:56:20,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:56:20,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:56:20,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:56:20,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:56:20,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:56:20,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:56:20,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (1/1) ... [2023-08-26 06:56:20,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:56:20,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:56:20,302 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) [2023-08-26 06:56:20,315 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 [2023-08-26 06:56:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:56:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:56:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:56:20,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:56:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:56:20,334 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:56:20,437 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:56:20,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:56:20,591 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:56:20,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:56:20,605 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:56:20,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:56:20 BoogieIcfgContainer [2023-08-26 06:56:20,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:56:20,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:56:20,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:56:20,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:56:20,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:56:19" (1/3) ... [2023-08-26 06:56:20,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5349f259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:56:20, skipping insertion in model container [2023-08-26 06:56:20,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:56:20" (2/3) ... [2023-08-26 06:56:20,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5349f259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:56:20, skipping insertion in model container [2023-08-26 06:56:20,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:56:20" (3/3) ... [2023-08-26 06:56:20,615 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2023-08-26 06:56:20,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:56:20,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-26 06:56:20,630 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:56:20,686 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 06:56:20,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 90 transitions, 188 flow [2023-08-26 06:56:20,759 INFO L124 PetriNetUnfolderBase]: 0/89 cut-off events. [2023-08-26 06:56:20,759 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:56:20,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 89 events. 0/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-26 06:56:20,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 90 transitions, 188 flow [2023-08-26 06:56:20,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 167 flow [2023-08-26 06:56:20,769 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:56:20,777 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-26 06:56:20,780 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-26 06:56:20,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 167 flow [2023-08-26 06:56:20,802 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2023-08-26 06:56:20,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:20,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:56:20,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 1392 [2023-08-26 06:56:22,578 INFO L134 LiptonReduction]: Checked pairs total: 10402 [2023-08-26 06:56:22,578 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-26 06:56:22,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:56:22,604 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;@6724d0a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:56:22,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-26 06:56:22,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:56:22,615 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-26 06:56:22,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:22,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:22,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:22,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:22,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash -481169387, now seen corresponding path program 1 times [2023-08-26 06:56:22,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668785789] [2023-08-26 06:56:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:22,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668785789] [2023-08-26 06:56:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668785789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:23,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808394361] [2023-08-26 06:56:23,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:23,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:23,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:23,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 131 [2023-08-26 06:56:23,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:23,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 131 [2023-08-26 06:56:23,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:23,666 INFO L124 PetriNetUnfolderBase]: 399/863 cut-off events. [2023-08-26 06:56:23,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:56:23,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 863 events. 399/863 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3996 event pairs, 198 based on Foata normal form. 0/766 useless extension candidates. Maximal degree in co-relation 1702. Up to 597 conditions per place. [2023-08-26 06:56:23,675 INFO L140 encePairwiseOnDemand]: 120/131 looper letters, 107 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2023-08-26 06:56:23,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 131 transitions, 523 flow [2023-08-26 06:56:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:23,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2023-08-26 06:56:23,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5852417302798982 [2023-08-26 06:56:23,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 460 transitions. [2023-08-26 06:56:23,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 460 transitions. [2023-08-26 06:56:23,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:23,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 460 transitions. [2023-08-26 06:56:23,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,708 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 460 transitions. [2023-08-26 06:56:23,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 131 transitions, 523 flow [2023-08-26 06:56:23,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 131 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:56:23,716 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-26 06:56:23,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-26 06:56:23,721 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-26 06:56:23,721 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-26 06:56:23,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:23,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:23,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:56:23,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:23,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:23,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2108507392, now seen corresponding path program 1 times [2023-08-26 06:56:23,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:23,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060556878] [2023-08-26 06:56:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:23,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060556878] [2023-08-26 06:56:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060556878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:23,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:23,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:23,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27363898] [2023-08-26 06:56:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:23,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:23,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:23,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:23,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:23,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 131 [2023-08-26 06:56:23,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 54.5) internal successors, (327), 6 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:23,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:23,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 131 [2023-08-26 06:56:23,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:24,198 INFO L124 PetriNetUnfolderBase]: 441/956 cut-off events. [2023-08-26 06:56:24,198 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2023-08-26 06:56:24,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 956 events. 441/956 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4462 event pairs, 226 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 2335. Up to 766 conditions per place. [2023-08-26 06:56:24,206 INFO L140 encePairwiseOnDemand]: 120/131 looper letters, 101 selfloop transitions, 26 changer transitions 0/128 dead transitions. [2023-08-26 06:56:24,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 128 transitions, 710 flow [2023-08-26 06:56:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 425 transitions. [2023-08-26 06:56:24,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5407124681933843 [2023-08-26 06:56:24,211 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 425 transitions. [2023-08-26 06:56:24,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 425 transitions. [2023-08-26 06:56:24,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:24,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 425 transitions. [2023-08-26 06:56:24,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,216 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,216 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 425 transitions. [2023-08-26 06:56:24,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 128 transitions, 710 flow [2023-08-26 06:56:24,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 128 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:56:24,223 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-26 06:56:24,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-08-26 06:56:24,224 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-26 06:56:24,224 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-26 06:56:24,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.5) internal successors, (327), 6 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:24,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:24,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:56:24,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:24,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1356089368, now seen corresponding path program 1 times [2023-08-26 06:56:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938711821] [2023-08-26 06:56:24,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:24,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:24,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:24,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938711821] [2023-08-26 06:56:24,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938711821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452009089] [2023-08-26 06:56:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:24,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:24,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 131 [2023-08-26 06:56:24,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 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) [2023-08-26 06:56:24,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:24,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 131 [2023-08-26 06:56:24,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:24,817 INFO L124 PetriNetUnfolderBase]: 512/1119 cut-off events. [2023-08-26 06:56:24,817 INFO L125 PetriNetUnfolderBase]: For 758/758 co-relation queries the response was YES. [2023-08-26 06:56:24,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 1119 events. 512/1119 cut-off events. For 758/758 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5631 event pairs, 184 based on Foata normal form. 0/1038 useless extension candidates. Maximal degree in co-relation 3109. Up to 884 conditions per place. [2023-08-26 06:56:24,823 INFO L140 encePairwiseOnDemand]: 112/131 looper letters, 108 selfloop transitions, 69 changer transitions 4/183 dead transitions. [2023-08-26 06:56:24,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 183 transitions, 1140 flow [2023-08-26 06:56:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2023-08-26 06:56:24,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5687022900763359 [2023-08-26 06:56:24,825 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 447 transitions. [2023-08-26 06:56:24,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 447 transitions. [2023-08-26 06:56:24,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:24,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 447 transitions. [2023-08-26 06:56:24,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:24,829 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 447 transitions. [2023-08-26 06:56:24,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 183 transitions, 1140 flow [2023-08-26 06:56:24,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 183 transitions, 1140 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:56:24,835 INFO L231 Difference]: Finished difference. Result has 74 places, 146 transitions, 1004 flow [2023-08-26 06:56:24,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=74, PETRI_TRANSITIONS=146} [2023-08-26 06:56:24,836 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-26 06:56:24,836 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 146 transitions, 1004 flow [2023-08-26 06:56:24,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 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) [2023-08-26 06:56:24,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:24,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:24,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:56:24,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:24,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1749636055, now seen corresponding path program 1 times [2023-08-26 06:56:24,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:24,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915219716] [2023-08-26 06:56:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:24,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915219716] [2023-08-26 06:56:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915219716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362266405] [2023-08-26 06:56:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:25,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:25,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 131 [2023-08-26 06:56:25,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 146 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:25,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 131 [2023-08-26 06:56:25,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:25,366 INFO L124 PetriNetUnfolderBase]: 616/1310 cut-off events. [2023-08-26 06:56:25,366 INFO L125 PetriNetUnfolderBase]: For 1627/1627 co-relation queries the response was YES. [2023-08-26 06:56:25,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4635 conditions, 1310 events. 616/1310 cut-off events. For 1627/1627 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6761 event pairs, 193 based on Foata normal form. 0/1256 useless extension candidates. Maximal degree in co-relation 4612. Up to 1107 conditions per place. [2023-08-26 06:56:25,376 INFO L140 encePairwiseOnDemand]: 116/131 looper letters, 169 selfloop transitions, 67 changer transitions 0/237 dead transitions. [2023-08-26 06:56:25,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 237 transitions, 1958 flow [2023-08-26 06:56:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2023-08-26 06:56:25,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5216284987277354 [2023-08-26 06:56:25,378 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 410 transitions. [2023-08-26 06:56:25,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 410 transitions. [2023-08-26 06:56:25,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:25,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 410 transitions. [2023-08-26 06:56:25,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,381 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,381 INFO L175 Difference]: Start difference. First operand has 74 places, 146 transitions, 1004 flow. Second operand 6 states and 410 transitions. [2023-08-26 06:56:25,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 237 transitions, 1958 flow [2023-08-26 06:56:25,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 237 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-26 06:56:25,394 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1592 flow [2023-08-26 06:56:25,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1592, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-26 06:56:25,394 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-26 06:56:25,395 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1592 flow [2023-08-26 06:56:25,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:25,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:25,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:56:25,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:25,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1907408675, now seen corresponding path program 1 times [2023-08-26 06:56:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:25,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103866110] [2023-08-26 06:56:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:25,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:25,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:25,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103866110] [2023-08-26 06:56:25,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103866110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:25,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:25,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:56:25,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511301937] [2023-08-26 06:56:25,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:25,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:56:25,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:56:25,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:56:25,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 131 [2023-08-26 06:56:25,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1592 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:25,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 131 [2023-08-26 06:56:25,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:25,476 INFO L124 PetriNetUnfolderBase]: 40/165 cut-off events. [2023-08-26 06:56:25,476 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2023-08-26 06:56:25,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 165 events. 40/165 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 503 event pairs, 5 based on Foata normal form. 8/162 useless extension candidates. Maximal degree in co-relation 534. Up to 60 conditions per place. [2023-08-26 06:56:25,477 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 9 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-26 06:56:25,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 59 transitions, 382 flow [2023-08-26 06:56:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:56:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:56:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-26 06:56:25,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6310432569974554 [2023-08-26 06:56:25,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-26 06:56:25,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-26 06:56:25,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:25,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-26 06:56:25,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,481 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1592 flow. Second operand 3 states and 248 transitions. [2023-08-26 06:56:25,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 59 transitions, 382 flow [2023-08-26 06:56:25,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 256 flow, removed 33 selfloop flow, removed 30 redundant places. [2023-08-26 06:56:25,483 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 238 flow [2023-08-26 06:56:25,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2023-08-26 06:56:25,484 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2023-08-26 06:56:25,484 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 238 flow [2023-08-26 06:56:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:25,485 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] [2023-08-26 06:56:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:56:25,485 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:25,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:25,485 INFO L85 PathProgramCache]: Analyzing trace with hash 136934458, now seen corresponding path program 1 times [2023-08-26 06:56:25,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:25,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221036196] [2023-08-26 06:56:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:25,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221036196] [2023-08-26 06:56:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221036196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:25,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:25,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:56:25,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411141214] [2023-08-26 06:56:25,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:25,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:56:25,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:56:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:56:25,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 131 [2023-08-26 06:56:25,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 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) [2023-08-26 06:56:25,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:25,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 131 [2023-08-26 06:56:25,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:25,868 INFO L124 PetriNetUnfolderBase]: 145/374 cut-off events. [2023-08-26 06:56:25,868 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-08-26 06:56:25,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 374 events. 145/374 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1438 event pairs, 22 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 1087. Up to 217 conditions per place. [2023-08-26 06:56:25,870 INFO L140 encePairwiseOnDemand]: 121/131 looper letters, 89 selfloop transitions, 25 changer transitions 19/134 dead transitions. [2023-08-26 06:56:25,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 134 transitions, 798 flow [2023-08-26 06:56:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:56:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:56:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 414 transitions. [2023-08-26 06:56:25,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267175572519084 [2023-08-26 06:56:25,872 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 414 transitions. [2023-08-26 06:56:25,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 414 transitions. [2023-08-26 06:56:25,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:25,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 414 transitions. [2023-08-26 06:56:25,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:25,875 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 238 flow. Second operand 6 states and 414 transitions. [2023-08-26 06:56:25,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 134 transitions, 798 flow [2023-08-26 06:56:25,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 134 transitions, 781 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:56:25,879 INFO L231 Difference]: Finished difference. Result has 62 places, 79 transitions, 449 flow [2023-08-26 06:56:25,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=62, PETRI_TRANSITIONS=79} [2023-08-26 06:56:25,879 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places. [2023-08-26 06:56:25,880 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 79 transitions, 449 flow [2023-08-26 06:56:25,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 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) [2023-08-26 06:56:25,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:25,880 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] [2023-08-26 06:56:25,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:56:25,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:25,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash 172216287, now seen corresponding path program 1 times [2023-08-26 06:56:25,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:25,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139160756] [2023-08-26 06:56:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:25,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:26,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:26,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139160756] [2023-08-26 06:56:26,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139160756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:26,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:26,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401508949] [2023-08-26 06:56:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:26,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:26,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:26,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:26,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 131 [2023-08-26 06:56:26,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 79 transitions, 449 flow. Second operand has 9 states, 9 states have (on average 46.44444444444444) internal successors, (418), 9 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:26,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:26,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 131 [2023-08-26 06:56:26,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:26,572 INFO L124 PetriNetUnfolderBase]: 130/348 cut-off events. [2023-08-26 06:56:26,573 INFO L125 PetriNetUnfolderBase]: For 426/426 co-relation queries the response was YES. [2023-08-26 06:56:26,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 348 events. 130/348 cut-off events. For 426/426 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1392 event pairs, 2 based on Foata normal form. 11/359 useless extension candidates. Maximal degree in co-relation 1275. Up to 160 conditions per place. [2023-08-26 06:56:26,575 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 80 selfloop transitions, 27 changer transitions 30/137 dead transitions. [2023-08-26 06:56:26,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 137 transitions, 1013 flow [2023-08-26 06:56:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 06:56:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 06:56:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 430 transitions. [2023-08-26 06:56:26,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41030534351145037 [2023-08-26 06:56:26,577 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 430 transitions. [2023-08-26 06:56:26,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 430 transitions. [2023-08-26 06:56:26,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:26,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 430 transitions. [2023-08-26 06:56:26,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.75) internal successors, (430), 8 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:26,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:26,580 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:26,580 INFO L175 Difference]: Start difference. First operand has 62 places, 79 transitions, 449 flow. Second operand 8 states and 430 transitions. [2023-08-26 06:56:26,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 137 transitions, 1013 flow [2023-08-26 06:56:26,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 137 transitions, 995 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-26 06:56:26,585 INFO L231 Difference]: Finished difference. Result has 68 places, 75 transitions, 461 flow [2023-08-26 06:56:26,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=461, PETRI_PLACES=68, PETRI_TRANSITIONS=75} [2023-08-26 06:56:26,586 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2023-08-26 06:56:26,586 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 75 transitions, 461 flow [2023-08-26 06:56:26,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 46.44444444444444) internal successors, (418), 9 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:26,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:26,587 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] [2023-08-26 06:56:26,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:56:26,587 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:26,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash 36389797, now seen corresponding path program 1 times [2023-08-26 06:56:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:26,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054169664] [2023-08-26 06:56:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:26,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:27,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054169664] [2023-08-26 06:56:27,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054169664] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:27,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:27,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:27,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934710767] [2023-08-26 06:56:27,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:27,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:27,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:27,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:27,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:27,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 131 [2023-08-26 06:56:27,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 461 flow. Second operand has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:27,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 131 [2023-08-26 06:56:27,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:27,328 INFO L124 PetriNetUnfolderBase]: 99/290 cut-off events. [2023-08-26 06:56:27,328 INFO L125 PetriNetUnfolderBase]: For 301/301 co-relation queries the response was YES. [2023-08-26 06:56:27,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 290 events. 99/290 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1027 event pairs, 20 based on Foata normal form. 6/296 useless extension candidates. Maximal degree in co-relation 1116. Up to 193 conditions per place. [2023-08-26 06:56:27,330 INFO L140 encePairwiseOnDemand]: 120/131 looper letters, 82 selfloop transitions, 24 changer transitions 14/120 dead transitions. [2023-08-26 06:56:27,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 120 transitions, 846 flow [2023-08-26 06:56:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 06:56:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 06:56:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 461 transitions. [2023-08-26 06:56:27,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398854961832061 [2023-08-26 06:56:27,332 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 461 transitions. [2023-08-26 06:56:27,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 461 transitions. [2023-08-26 06:56:27,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:27,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 461 transitions. [2023-08-26 06:56:27,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 57.625) internal successors, (461), 8 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,339 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,339 INFO L175 Difference]: Start difference. First operand has 68 places, 75 transitions, 461 flow. Second operand 8 states and 461 transitions. [2023-08-26 06:56:27,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 120 transitions, 846 flow [2023-08-26 06:56:27,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 120 transitions, 735 flow, removed 9 selfloop flow, removed 8 redundant places. [2023-08-26 06:56:27,345 INFO L231 Difference]: Finished difference. Result has 68 places, 75 transitions, 426 flow [2023-08-26 06:56:27,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=426, PETRI_PLACES=68, PETRI_TRANSITIONS=75} [2023-08-26 06:56:27,348 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2023-08-26 06:56:27,348 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 75 transitions, 426 flow [2023-08-26 06:56:27,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:27,349 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] [2023-08-26 06:56:27,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 06:56:27,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:27,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1583425277, now seen corresponding path program 2 times [2023-08-26 06:56:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:27,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292101913] [2023-08-26 06:56:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:27,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292101913] [2023-08-26 06:56:27,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292101913] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:27,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:27,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:27,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737453700] [2023-08-26 06:56:27,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:27,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:27,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:27,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:27,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:27,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 131 [2023-08-26 06:56:27,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 426 flow. Second operand has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:27,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:27,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 131 [2023-08-26 06:56:27,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:28,165 INFO L124 PetriNetUnfolderBase]: 147/395 cut-off events. [2023-08-26 06:56:28,165 INFO L125 PetriNetUnfolderBase]: For 471/471 co-relation queries the response was YES. [2023-08-26 06:56:28,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 395 events. 147/395 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1671 event pairs, 12 based on Foata normal form. 11/406 useless extension candidates. Maximal degree in co-relation 1487. Up to 213 conditions per place. [2023-08-26 06:56:28,168 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 59 selfloop transitions, 2 changer transitions 121/182 dead transitions. [2023-08-26 06:56:28,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 182 transitions, 1317 flow [2023-08-26 06:56:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 06:56:28,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 06:56:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 471 transitions. [2023-08-26 06:56:28,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494274809160305 [2023-08-26 06:56:28,170 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 471 transitions. [2023-08-26 06:56:28,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 471 transitions. [2023-08-26 06:56:28,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:28,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 471 transitions. [2023-08-26 06:56:28,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.875) internal successors, (471), 8 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:28,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:28,174 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:28,174 INFO L175 Difference]: Start difference. First operand has 68 places, 75 transitions, 426 flow. Second operand 8 states and 471 transitions. [2023-08-26 06:56:28,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 182 transitions, 1317 flow [2023-08-26 06:56:28,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 182 transitions, 1245 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-26 06:56:28,180 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 323 flow [2023-08-26 06:56:28,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=323, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2023-08-26 06:56:28,182 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2023-08-26 06:56:28,182 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 323 flow [2023-08-26 06:56:28,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:28,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:28,182 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] [2023-08-26 06:56:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 06:56:28,183 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:28,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash -947950083, now seen corresponding path program 3 times [2023-08-26 06:56:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:28,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987567897] [2023-08-26 06:56:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:28,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987567897] [2023-08-26 06:56:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987567897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:28,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158276610] [2023-08-26 06:56:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:28,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:28,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:28,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 131 [2023-08-26 06:56:28,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 323 flow. Second operand has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:28,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:28,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 131 [2023-08-26 06:56:28,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:29,025 INFO L124 PetriNetUnfolderBase]: 81/241 cut-off events. [2023-08-26 06:56:29,026 INFO L125 PetriNetUnfolderBase]: For 390/390 co-relation queries the response was YES. [2023-08-26 06:56:29,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 241 events. 81/241 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 831 event pairs, 13 based on Foata normal form. 11/252 useless extension candidates. Maximal degree in co-relation 890. Up to 137 conditions per place. [2023-08-26 06:56:29,027 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 72 selfloop transitions, 9 changer transitions 46/127 dead transitions. [2023-08-26 06:56:29,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 127 transitions, 852 flow [2023-08-26 06:56:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 06:56:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 06:56:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 506 transitions. [2023-08-26 06:56:29,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42917726887192537 [2023-08-26 06:56:29,029 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 506 transitions. [2023-08-26 06:56:29,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 506 transitions. [2023-08-26 06:56:29,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:29,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 506 transitions. [2023-08-26 06:56:29,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.22222222222222) internal successors, (506), 9 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,033 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,033 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 323 flow. Second operand 9 states and 506 transitions. [2023-08-26 06:56:29,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 127 transitions, 852 flow [2023-08-26 06:56:29,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 127 transitions, 775 flow, removed 32 selfloop flow, removed 7 redundant places. [2023-08-26 06:56:29,038 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 304 flow [2023-08-26 06:56:29,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=304, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2023-08-26 06:56:29,039 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2023-08-26 06:56:29,039 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 304 flow [2023-08-26 06:56:29,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:29,039 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] [2023-08-26 06:56:29,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 06:56:29,040 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:29,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1563164419, now seen corresponding path program 4 times [2023-08-26 06:56:29,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483388683] [2023-08-26 06:56:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:29,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:29,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:29,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483388683] [2023-08-26 06:56:29,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483388683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:29,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:29,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:29,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245293544] [2023-08-26 06:56:29,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:29,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:29,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:29,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 131 [2023-08-26 06:56:29,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 304 flow. Second operand has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:29,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 131 [2023-08-26 06:56:29,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:29,694 INFO L124 PetriNetUnfolderBase]: 98/277 cut-off events. [2023-08-26 06:56:29,694 INFO L125 PetriNetUnfolderBase]: For 398/398 co-relation queries the response was YES. [2023-08-26 06:56:29,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 277 events. 98/277 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 971 event pairs, 27 based on Foata normal form. 11/288 useless extension candidates. Maximal degree in co-relation 1027. Up to 118 conditions per place. [2023-08-26 06:56:29,695 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 50 selfloop transitions, 3 changer transitions 83/136 dead transitions. [2023-08-26 06:56:29,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 136 transitions, 963 flow [2023-08-26 06:56:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 06:56:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 06:56:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 449 transitions. [2023-08-26 06:56:29,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42843511450381677 [2023-08-26 06:56:29,697 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 449 transitions. [2023-08-26 06:56:29,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 449 transitions. [2023-08-26 06:56:29,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:29,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 449 transitions. [2023-08-26 06:56:29,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 56.125) internal successors, (449), 8 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,702 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,702 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 304 flow. Second operand 8 states and 449 transitions. [2023-08-26 06:56:29,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 136 transitions, 963 flow [2023-08-26 06:56:29,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 136 transitions, 907 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-26 06:56:29,706 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 271 flow [2023-08-26 06:56:29,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=271, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2023-08-26 06:56:29,707 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 28 predicate places. [2023-08-26 06:56:29,707 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 271 flow [2023-08-26 06:56:29,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:29,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:56:29,708 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] [2023-08-26 06:56:29,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 06:56:29,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-26 06:56:29,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:56:29,709 INFO L85 PathProgramCache]: Analyzing trace with hash 486453403, now seen corresponding path program 5 times [2023-08-26 06:56:29,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:56:29,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962927385] [2023-08-26 06:56:29,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:56:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:56:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:56:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:56:30,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:56:30,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962927385] [2023-08-26 06:56:30,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962927385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:56:30,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:56:30,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 06:56:30,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538680331] [2023-08-26 06:56:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:56:30,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 06:56:30,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:56:30,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 06:56:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-26 06:56:30,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 131 [2023-08-26 06:56:30,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 271 flow. Second operand has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:30,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:56:30,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 131 [2023-08-26 06:56:30,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:56:30,347 INFO L124 PetriNetUnfolderBase]: 31/112 cut-off events. [2023-08-26 06:56:30,347 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-08-26 06:56:30,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 112 events. 31/112 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 239 event pairs, 0 based on Foata normal form. 11/123 useless extension candidates. Maximal degree in co-relation 420. Up to 37 conditions per place. [2023-08-26 06:56:30,348 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 0 selfloop transitions, 0 changer transitions 91/91 dead transitions. [2023-08-26 06:56:30,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 91 transitions, 613 flow [2023-08-26 06:56:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 06:56:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 06:56:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 432 transitions. [2023-08-26 06:56:30,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4122137404580153 [2023-08-26 06:56:30,350 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 432 transitions. [2023-08-26 06:56:30,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 432 transitions. [2023-08-26 06:56:30,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:56:30,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 432 transitions. [2023-08-26 06:56:30,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:30,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:30,353 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:30,353 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 271 flow. Second operand 8 states and 432 transitions. [2023-08-26 06:56:30,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 91 transitions, 613 flow [2023-08-26 06:56:30,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 541 flow, removed 24 selfloop flow, removed 10 redundant places. [2023-08-26 06:56:30,355 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-26 06:56:30,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-26 06:56:30,356 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2023-08-26 06:56:30,356 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-26 06:56:30,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.44444444444444) internal successors, (436), 9 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:56:30,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-26 06:56:30,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-26 06:56:30,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-26 06:56:30,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-26 06:56:30,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-26 06:56:30,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-26 06:56:30,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-26 06:56:30,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-26 06:56:30,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 06:56:30,360 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:56:30,364 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:56:30,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:56:30,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:56:30 BasicIcfg [2023-08-26 06:56:30,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:56:30,369 INFO L158 Benchmark]: Toolchain (without parser) took 10758.62ms. Allocated memory was 396.4MB in the beginning and 723.5MB in the end (delta: 327.2MB). Free memory was 371.0MB in the beginning and 391.7MB in the end (delta: -20.7MB). Peak memory consumption was 307.5MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,370 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 396.4MB. Free memory was 374.6MB in the beginning and 374.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:56:30,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.04ms. Allocated memory is still 396.4MB. Free memory was 371.0MB in the beginning and 343.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.70ms. Allocated memory is still 396.4MB. Free memory was 343.3MB in the beginning and 341.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,371 INFO L158 Benchmark]: Boogie Preprocessor took 26.09ms. Allocated memory is still 396.4MB. Free memory was 341.1MB in the beginning and 339.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,371 INFO L158 Benchmark]: RCFGBuilder took 335.82ms. Allocated memory is still 396.4MB. Free memory was 339.2MB in the beginning and 322.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,372 INFO L158 Benchmark]: TraceAbstraction took 9758.44ms. Allocated memory was 396.4MB in the beginning and 723.5MB in the end (delta: 327.2MB). Free memory was 322.1MB in the beginning and 391.7MB in the end (delta: -69.6MB). Peak memory consumption was 259.3MB. Max. memory is 16.0GB. [2023-08-26 06:56:30,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 396.4MB. Free memory was 374.6MB in the beginning and 374.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 586.04ms. Allocated memory is still 396.4MB. Free memory was 371.0MB in the beginning and 343.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.70ms. Allocated memory is still 396.4MB. Free memory was 343.3MB in the beginning and 341.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.09ms. Allocated memory is still 396.4MB. Free memory was 341.1MB in the beginning and 339.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 335.82ms. Allocated memory is still 396.4MB. Free memory was 339.2MB in the beginning and 322.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 9758.44ms. Allocated memory was 396.4MB in the beginning and 723.5MB in the end (delta: 327.2MB). Free memory was 322.1MB in the beginning and 391.7MB in the end (delta: -69.6MB). Peak memory consumption was 259.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 86 PlacesBefore, 45 PlacesAfterwards, 82 TransitionsBefore, 41 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 10402 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1744, independent: 1240, independent conditional: 0, independent unconditional: 1240, dependent: 504, dependent conditional: 0, dependent unconditional: 504, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 472, independent: 428, independent conditional: 0, independent unconditional: 428, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1744, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 460, dependent conditional: 0, dependent unconditional: 460, unknown: 472, unknown conditional: 0, unknown unconditional: 472] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: 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, 117 locations, 8 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: 9.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 476 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 476 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 283 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3195 IncrementalHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 283 mSolverCounterUnsat, 134 mSDtfsCounter, 3195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1592occurred in iteration=4, InterpolantAutomatonStates: 82, 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, 3.7s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 3460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 06:56:30,393 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...