/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:26:30,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:26:30,084 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:26:30,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:26:30,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:26:30,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:26:30,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:26:30,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:26:30,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:26:30,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:26:30,127 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:26:30,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:26:30,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:26:30,128 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:26:30,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:26:30,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:26:30,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:26:30,130 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:26:30,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:26:30,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:26:30,130 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:26:30,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:26:30,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:26:30,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:26:30,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:26:30,132 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:26:30,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:26:30,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:26:30,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:26:30,380 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:26:30,381 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:26:30,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-25 17:26:31,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:26:31,635 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:26:31,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-25 17:26:31,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b170d58/61e58c3f3e8648d8b762943a93ce66f7/FLAG42951f3a8 [2023-08-25 17:26:31,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b170d58/61e58c3f3e8648d8b762943a93ce66f7 [2023-08-25 17:26:31,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:26:31,674 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:26:31,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:26:31,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:26:31,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:26:31,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:31" (1/1) ... [2023-08-25 17:26:31,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198220f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:31, skipping insertion in model container [2023-08-25 17:26:31,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:31" (1/1) ... [2023-08-25 17:26:31,726 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:26:32,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:26:32,125 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:26:32,143 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:26:32,144 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:26:32,160 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 17:26:32,165 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1233] [2023-08-25 17:26:32,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:26:32,232 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:26:32,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32 WrapperNode [2023-08-25 17:26:32,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:26:32,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:26:32,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:26:32,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:26:32,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,271 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2023-08-25 17:26:32,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:26:32,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:26:32,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:26:32,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:26:32,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:26:32,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:26:32,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:26:32,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:26:32,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (1/1) ... [2023-08-25 17:26:32,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:26:32,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:26:32,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:26:32,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:26:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:26:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:26:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:26:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:26:32,341 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:26:32,458 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:26:32,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:26:32,651 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:26:32,656 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:26:32,656 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:26:32,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:32 BoogieIcfgContainer [2023-08-25 17:26:32,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:26:32,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:26:32,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:26:32,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:26:32,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:26:31" (1/3) ... [2023-08-25 17:26:32,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b0867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:32, skipping insertion in model container [2023-08-25 17:26:32,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:32" (2/3) ... [2023-08-25 17:26:32,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b0867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:32, skipping insertion in model container [2023-08-25 17:26:32,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:32" (3/3) ... [2023-08-25 17:26:32,665 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-08-25 17:26:32,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:26:32,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-25 17:26:32,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:26:32,753 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:26:32,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 215 flow [2023-08-25 17:26:32,832 INFO L124 PetriNetUnfolderBase]: 0/104 cut-off events. [2023-08-25 17:26:32,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:32,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:26:32,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 105 transitions, 215 flow [2023-08-25 17:26:32,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 211 flow [2023-08-25 17:26:32,841 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:26:32,853 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 104 transitions, 211 flow [2023-08-25 17:26:32,856 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 104 transitions, 211 flow [2023-08-25 17:26:32,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 211 flow [2023-08-25 17:26:32,880 INFO L124 PetriNetUnfolderBase]: 0/104 cut-off events. [2023-08-25 17:26:32,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:32,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:26:32,882 INFO L119 LiptonReduction]: Number of co-enabled transitions 2304 [2023-08-25 17:26:34,913 INFO L134 LiptonReduction]: Checked pairs total: 12387 [2023-08-25 17:26:34,913 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-08-25 17:26:34,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:26:34,925 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;@44505770, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:26:34,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-25 17:26:34,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:26:34,926 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:26:34,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:34,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:34,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:26:34,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:34,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash 343, now seen corresponding path program 1 times [2023-08-25 17:26:34,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:34,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646187840] [2023-08-25 17:26:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:34,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:34,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:34,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646187840] [2023-08-25 17:26:34,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646187840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:34,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:26:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735419398] [2023-08-25 17:26:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:35,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:26:35,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:26:35,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:26:35,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 178 [2023-08-25 17:26:35,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:35,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 178 [2023-08-25 17:26:35,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:35,090 INFO L124 PetriNetUnfolderBase]: 49/216 cut-off events. [2023-08-25 17:26:35,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:35,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 216 events. 49/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 913 event pairs, 49 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 326. Up to 115 conditions per place. [2023-08-25 17:26:35,095 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 16 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-25 17:26:35,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 115 flow [2023-08-25 17:26:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:26:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:26:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2023-08-25 17:26:35,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6376404494382022 [2023-08-25 17:26:35,105 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2023-08-25 17:26:35,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2023-08-25 17:26:35,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:35,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2023-08-25 17:26:35,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,116 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,117 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 89 flow. Second operand 2 states and 227 transitions. [2023-08-25 17:26:35,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 115 flow [2023-08-25 17:26:35,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:26:35,119 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-08-25 17:26:35,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-08-25 17:26:35,123 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-25 17:26:35,123 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-08-25 17:26:35,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:35,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 17:26:35,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:26:35,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:35,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:35,125 INFO L85 PathProgramCache]: Analyzing trace with hash 10672680, now seen corresponding path program 1 times [2023-08-25 17:26:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899577793] [2023-08-25 17:26:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:35,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:35,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899577793] [2023-08-25 17:26:35,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899577793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:35,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:35,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:26:35,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983473567] [2023-08-25 17:26:35,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:35,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:26:35,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:26:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:26:35,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 178 [2023-08-25 17:26:35,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:35,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 178 [2023-08-25 17:26:35,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:35,296 INFO L124 PetriNetUnfolderBase]: 49/213 cut-off events. [2023-08-25 17:26:35,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:35,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 213 events. 49/213 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 893 event pairs, 49 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 329. Up to 114 conditions per place. [2023-08-25 17:26:35,297 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 15 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-25 17:26:35,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 110 flow [2023-08-25 17:26:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:26:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:26:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2023-08-25 17:26:35,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.550561797752809 [2023-08-25 17:26:35,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2023-08-25 17:26:35,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2023-08-25 17:26:35,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:35,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2023-08-25 17:26:35,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,317 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 294 transitions. [2023-08-25 17:26:35,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 110 flow [2023-08-25 17:26:35,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:35,318 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 80 flow [2023-08-25 17:26:35,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-25 17:26:35,319 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-25 17:26:35,319 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 80 flow [2023-08-25 17:26:35,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:35,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:35,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:26:35,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:35,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:35,320 INFO L85 PathProgramCache]: Analyzing trace with hash 536002264, now seen corresponding path program 1 times [2023-08-25 17:26:35,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:35,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77354681] [2023-08-25 17:26:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:35,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:35,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77354681] [2023-08-25 17:26:35,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77354681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:35,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608737995] [2023-08-25 17:26:35,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:35,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:35,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:35,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 178 [2023-08-25 17:26:35,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:35,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 178 [2023-08-25 17:26:35,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:35,881 INFO L124 PetriNetUnfolderBase]: 331/709 cut-off events. [2023-08-25 17:26:35,881 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:26:35,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 709 events. 331/709 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3088 event pairs, 190 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 1417. Up to 513 conditions per place. [2023-08-25 17:26:35,884 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 89 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2023-08-25 17:26:35,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 112 transitions, 450 flow [2023-08-25 17:26:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2023-08-25 17:26:35,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868913857677903 [2023-08-25 17:26:35,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 520 transitions. [2023-08-25 17:26:35,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 520 transitions. [2023-08-25 17:26:35,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:35,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 520 transitions. [2023-08-25 17:26:35,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,890 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 80 flow. Second operand 6 states and 520 transitions. [2023-08-25 17:26:35,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 112 transitions, 450 flow [2023-08-25 17:26:35,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 112 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:26:35,892 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 229 flow [2023-08-25 17:26:35,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2023-08-25 17:26:35,893 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2023-08-25 17:26:35,893 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 229 flow [2023-08-25 17:26:35,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:35,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:35,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:35,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:26:35,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:35,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 671332788, now seen corresponding path program 1 times [2023-08-25 17:26:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791623294] [2023-08-25 17:26:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:36,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:36,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791623294] [2023-08-25 17:26:36,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791623294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:36,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:36,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034013025] [2023-08-25 17:26:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:36,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:36,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 178 [2023-08-25 17:26:36,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:36,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 178 [2023-08-25 17:26:36,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:36,344 INFO L124 PetriNetUnfolderBase]: 333/724 cut-off events. [2023-08-25 17:26:36,344 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2023-08-25 17:26:36,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 724 events. 333/724 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3246 event pairs, 151 based on Foata normal form. 0/669 useless extension candidates. Maximal degree in co-relation 1796. Up to 545 conditions per place. [2023-08-25 17:26:36,348 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 97 selfloop transitions, 26 changer transitions 0/125 dead transitions. [2023-08-25 17:26:36,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 125 transitions, 697 flow [2023-08-25 17:26:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:36,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2023-08-25 17:26:36,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47846441947565543 [2023-08-25 17:26:36,350 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 511 transitions. [2023-08-25 17:26:36,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 511 transitions. [2023-08-25 17:26:36,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:36,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 511 transitions. [2023-08-25 17:26:36,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,353 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 229 flow. Second operand 6 states and 511 transitions. [2023-08-25 17:26:36,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 125 transitions, 697 flow [2023-08-25 17:26:36,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 125 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:36,357 INFO L231 Difference]: Finished difference. Result has 63 places, 80 transitions, 413 flow [2023-08-25 17:26:36,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=63, PETRI_TRANSITIONS=80} [2023-08-25 17:26:36,358 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2023-08-25 17:26:36,358 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 80 transitions, 413 flow [2023-08-25 17:26:36,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.83333333333333) internal successors, (419), 6 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:36,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:36,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:26:36,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:36,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash 465092287, now seen corresponding path program 1 times [2023-08-25 17:26:36,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:36,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69130427] [2023-08-25 17:26:36,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:36,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:36,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69130427] [2023-08-25 17:26:36,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69130427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:36,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:36,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848020780] [2023-08-25 17:26:36,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:36,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:36,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:36,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:36,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 178 [2023-08-25 17:26:36,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 80 transitions, 413 flow. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:36,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 178 [2023-08-25 17:26:36,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:36,759 INFO L124 PetriNetUnfolderBase]: 425/908 cut-off events. [2023-08-25 17:26:36,759 INFO L125 PetriNetUnfolderBase]: For 574/574 co-relation queries the response was YES. [2023-08-25 17:26:36,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 908 events. 425/908 cut-off events. For 574/574 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4269 event pairs, 172 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 2655. Up to 730 conditions per place. [2023-08-25 17:26:36,764 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 102 selfloop transitions, 53 changer transitions 8/164 dead transitions. [2023-08-25 17:26:36,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 164 transitions, 1067 flow [2023-08-25 17:26:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2023-08-25 17:26:36,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4747191011235955 [2023-08-25 17:26:36,766 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2023-08-25 17:26:36,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2023-08-25 17:26:36,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:36,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2023-08-25 17:26:36,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,769 INFO L175 Difference]: Start difference. First operand has 63 places, 80 transitions, 413 flow. Second operand 6 states and 507 transitions. [2023-08-25 17:26:36,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 164 transitions, 1067 flow [2023-08-25 17:26:36,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1067 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:36,774 INFO L231 Difference]: Finished difference. Result has 73 places, 127 transitions, 895 flow [2023-08-25 17:26:36,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=895, PETRI_PLACES=73, PETRI_TRANSITIONS=127} [2023-08-25 17:26:36,775 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2023-08-25 17:26:36,775 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 127 transitions, 895 flow [2023-08-25 17:26:36,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:36,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:36,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:36,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:26:36,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:36,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -198705073, now seen corresponding path program 1 times [2023-08-25 17:26:36,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:36,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496762233] [2023-08-25 17:26:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:36,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:37,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:37,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496762233] [2023-08-25 17:26:37,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496762233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:37,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:37,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:37,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778304562] [2023-08-25 17:26:37,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:37,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:37,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 178 [2023-08-25 17:26:37,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 127 transitions, 895 flow. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:37,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 178 [2023-08-25 17:26:37,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:37,208 INFO L124 PetriNetUnfolderBase]: 467/1013 cut-off events. [2023-08-25 17:26:37,208 INFO L125 PetriNetUnfolderBase]: For 1388/1390 co-relation queries the response was YES. [2023-08-25 17:26:37,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3671 conditions, 1013 events. 467/1013 cut-off events. For 1388/1390 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5072 event pairs, 143 based on Foata normal form. 0/988 useless extension candidates. Maximal degree in co-relation 3653. Up to 815 conditions per place. [2023-08-25 17:26:37,214 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 132 selfloop transitions, 58 changer transitions 26/218 dead transitions. [2023-08-25 17:26:37,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 218 transitions, 1809 flow [2023-08-25 17:26:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:37,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:37,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 502 transitions. [2023-08-25 17:26:37,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4700374531835206 [2023-08-25 17:26:37,216 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 502 transitions. [2023-08-25 17:26:37,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 502 transitions. [2023-08-25 17:26:37,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:37,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 502 transitions. [2023-08-25 17:26:37,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,218 INFO L175 Difference]: Start difference. First operand has 73 places, 127 transitions, 895 flow. Second operand 6 states and 502 transitions. [2023-08-25 17:26:37,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 218 transitions, 1809 flow [2023-08-25 17:26:37,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 218 transitions, 1745 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:37,228 INFO L231 Difference]: Finished difference. Result has 83 places, 168 transitions, 1357 flow [2023-08-25 17:26:37,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1357, PETRI_PLACES=83, PETRI_TRANSITIONS=168} [2023-08-25 17:26:37,229 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 36 predicate places. [2023-08-25 17:26:37,229 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 168 transitions, 1357 flow [2023-08-25 17:26:37,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:37,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:37,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:26:37,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:37,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1511187286, now seen corresponding path program 1 times [2023-08-25 17:26:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:37,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174089895] [2023-08-25 17:26:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:37,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:37,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:37,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:37,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174089895] [2023-08-25 17:26:37,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174089895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:37,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:37,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:37,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349844590] [2023-08-25 17:26:37,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:37,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:37,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:37,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:37,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:37,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 178 [2023-08-25 17:26:37,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 168 transitions, 1357 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:37,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 178 [2023-08-25 17:26:37,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:37,723 INFO L124 PetriNetUnfolderBase]: 369/880 cut-off events. [2023-08-25 17:26:37,724 INFO L125 PetriNetUnfolderBase]: For 1929/1976 co-relation queries the response was YES. [2023-08-25 17:26:37,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3541 conditions, 880 events. 369/880 cut-off events. For 1929/1976 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4824 event pairs, 30 based on Foata normal form. 21/893 useless extension candidates. Maximal degree in co-relation 3518. Up to 472 conditions per place. [2023-08-25 17:26:37,728 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 104 selfloop transitions, 7 changer transitions 39/223 dead transitions. [2023-08-25 17:26:37,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 223 transitions, 1981 flow [2023-08-25 17:26:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-25 17:26:37,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49812734082397003 [2023-08-25 17:26:37,731 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-25 17:26:37,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-25 17:26:37,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:37,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-25 17:26:37,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,733 INFO L175 Difference]: Start difference. First operand has 83 places, 168 transitions, 1357 flow. Second operand 6 states and 532 transitions. [2023-08-25 17:26:37,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 223 transitions, 1981 flow [2023-08-25 17:26:37,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 223 transitions, 1913 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-08-25 17:26:37,747 INFO L231 Difference]: Finished difference. Result has 90 places, 168 transitions, 1312 flow [2023-08-25 17:26:37,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1312, PETRI_PLACES=90, PETRI_TRANSITIONS=168} [2023-08-25 17:26:37,748 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 43 predicate places. [2023-08-25 17:26:37,748 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 168 transitions, 1312 flow [2023-08-25 17:26:37,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:37,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:37,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:26:37,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:37,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash 874796032, now seen corresponding path program 2 times [2023-08-25 17:26:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:37,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722216493] [2023-08-25 17:26:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:37,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:37,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:37,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722216493] [2023-08-25 17:26:37,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722216493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:37,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:37,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118176756] [2023-08-25 17:26:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:37,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:37,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:37,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:37,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 178 [2023-08-25 17:26:37,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 168 transitions, 1312 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:37,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:37,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 178 [2023-08-25 17:26:37,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:38,242 INFO L124 PetriNetUnfolderBase]: 481/1077 cut-off events. [2023-08-25 17:26:38,242 INFO L125 PetriNetUnfolderBase]: For 2380/2380 co-relation queries the response was YES. [2023-08-25 17:26:38,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4782 conditions, 1077 events. 481/1077 cut-off events. For 2380/2380 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5642 event pairs, 65 based on Foata normal form. 13/1090 useless extension candidates. Maximal degree in co-relation 4756. Up to 843 conditions per place. [2023-08-25 17:26:38,249 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 191 selfloop transitions, 7 changer transitions 48/246 dead transitions. [2023-08-25 17:26:38,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 246 transitions, 2342 flow [2023-08-25 17:26:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2023-08-25 17:26:38,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4353932584269663 [2023-08-25 17:26:38,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 465 transitions. [2023-08-25 17:26:38,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 465 transitions. [2023-08-25 17:26:38,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:38,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 465 transitions. [2023-08-25 17:26:38,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,253 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,253 INFO L175 Difference]: Start difference. First operand has 90 places, 168 transitions, 1312 flow. Second operand 6 states and 465 transitions. [2023-08-25 17:26:38,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 246 transitions, 2342 flow [2023-08-25 17:26:38,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 246 transitions, 2323 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-25 17:26:38,266 INFO L231 Difference]: Finished difference. Result has 92 places, 168 transitions, 1324 flow [2023-08-25 17:26:38,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1324, PETRI_PLACES=92, PETRI_TRANSITIONS=168} [2023-08-25 17:26:38,267 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 45 predicate places. [2023-08-25 17:26:38,267 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 168 transitions, 1324 flow [2023-08-25 17:26:38,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:38,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:26:38,267 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:38,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash -278142915, now seen corresponding path program 1 times [2023-08-25 17:26:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:38,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209269737] [2023-08-25 17:26:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:38,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:38,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209269737] [2023-08-25 17:26:38,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209269737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:38,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:38,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513054944] [2023-08-25 17:26:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:38,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:38,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:38,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 178 [2023-08-25 17:26:38,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 168 transitions, 1324 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:38,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 178 [2023-08-25 17:26:38,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:38,651 INFO L124 PetriNetUnfolderBase]: 342/878 cut-off events. [2023-08-25 17:26:38,652 INFO L125 PetriNetUnfolderBase]: For 2187/2216 co-relation queries the response was YES. [2023-08-25 17:26:38,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 878 events. 342/878 cut-off events. For 2187/2216 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4839 event pairs, 70 based on Foata normal form. 19/890 useless extension candidates. Maximal degree in co-relation 3811. Up to 579 conditions per place. [2023-08-25 17:26:38,657 INFO L140 encePairwiseOnDemand]: 173/178 looper letters, 93 selfloop transitions, 2 changer transitions 23/191 dead transitions. [2023-08-25 17:26:38,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 191 transitions, 1692 flow [2023-08-25 17:26:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2023-08-25 17:26:38,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4812734082397004 [2023-08-25 17:26:38,659 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 514 transitions. [2023-08-25 17:26:38,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 514 transitions. [2023-08-25 17:26:38,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:38,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 514 transitions. [2023-08-25 17:26:38,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,662 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,662 INFO L175 Difference]: Start difference. First operand has 92 places, 168 transitions, 1324 flow. Second operand 6 states and 514 transitions. [2023-08-25 17:26:38,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 191 transitions, 1692 flow [2023-08-25 17:26:38,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 191 transitions, 1675 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 17:26:38,673 INFO L231 Difference]: Finished difference. Result has 95 places, 168 transitions, 1328 flow [2023-08-25 17:26:38,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=95, PETRI_TRANSITIONS=168} [2023-08-25 17:26:38,674 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2023-08-25 17:26:38,674 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 168 transitions, 1328 flow [2023-08-25 17:26:38,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:26:38,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:38,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:26:38,675 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-25 17:26:38,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:26:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1618940846, now seen corresponding path program 3 times [2023-08-25 17:26:38,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:26:38,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798191536] [2023-08-25 17:26:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:26:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:26:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:26:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:26:38,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:26:38,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798191536] [2023-08-25 17:26:38,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798191536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:26:38,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:26:38,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:26:38,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665492794] [2023-08-25 17:26:38,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:26:38,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:26:38,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:26:38,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:26:38,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:26:38,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 178 [2023-08-25 17:26:38,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 168 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:26:38,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 178 [2023-08-25 17:26:38,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:26:38,951 INFO L124 PetriNetUnfolderBase]: 20/108 cut-off events. [2023-08-25 17:26:38,952 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2023-08-25 17:26:38,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 108 events. 20/108 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 368 event pairs, 15 based on Foata normal form. 17/125 useless extension candidates. Maximal degree in co-relation 413. Up to 48 conditions per place. [2023-08-25 17:26:38,952 INFO L140 encePairwiseOnDemand]: 173/178 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2023-08-25 17:26:38,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 51 transitions, 425 flow [2023-08-25 17:26:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:26:38,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:26:38,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2023-08-25 17:26:38,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737827715355805 [2023-08-25 17:26:38,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2023-08-25 17:26:38,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2023-08-25 17:26:38,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:26:38,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2023-08-25 17:26:38,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 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) [2023-08-25 17:26:38,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 178.0) internal successors, (1246), 7 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,957 INFO L175 Difference]: Start difference. First operand has 95 places, 168 transitions, 1328 flow. Second operand 6 states and 506 transitions. [2023-08-25 17:26:38,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 51 transitions, 425 flow [2023-08-25 17:26:38,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 51 transitions, 216 flow, removed 49 selfloop flow, removed 42 redundant places. [2023-08-25 17:26:38,959 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2023-08-25 17:26:38,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2023-08-25 17:26:38,961 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2023-08-25 17:26:38,961 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2023-08-25 17:26:38,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:26:38,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-25 17:26:38,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-25 17:26:38,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-25 17:26:38,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:26:38,967 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:26:38,971 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:26:38,971 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:26:38,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:26:38 BasicIcfg [2023-08-25 17:26:38,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:26:38,974 INFO L158 Benchmark]: Toolchain (without parser) took 7299.57ms. Allocated memory was 383.8MB in the beginning and 572.5MB in the end (delta: 188.7MB). Free memory was 356.9MB in the beginning and 338.0MB in the end (delta: 18.9MB). Peak memory consumption was 207.7MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,974 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 383.8MB. Free memory was 361.5MB in the beginning and 361.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:26:38,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.03ms. Allocated memory is still 383.8MB. Free memory was 356.9MB in the beginning and 319.6MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.64ms. Allocated memory is still 383.8MB. Free memory was 319.6MB in the beginning and 316.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,975 INFO L158 Benchmark]: Boogie Preprocessor took 26.06ms. Allocated memory is still 383.8MB. Free memory was 316.2MB in the beginning and 314.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,975 INFO L158 Benchmark]: RCFGBuilder took 361.98ms. Allocated memory is still 383.8MB. Free memory was 314.1MB in the beginning and 297.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,975 INFO L158 Benchmark]: TraceAbstraction took 6311.88ms. Allocated memory was 383.8MB in the beginning and 572.5MB in the end (delta: 188.7MB). Free memory was 296.5MB in the beginning and 338.0MB in the end (delta: -41.4MB). Peak memory consumption was 146.8MB. Max. memory is 16.0GB. [2023-08-25 17:26:38,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 383.8MB. Free memory was 361.5MB in the beginning and 361.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 558.03ms. Allocated memory is still 383.8MB. Free memory was 356.9MB in the beginning and 319.6MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.64ms. Allocated memory is still 383.8MB. Free memory was 319.6MB in the beginning and 316.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.06ms. Allocated memory is still 383.8MB. Free memory was 316.2MB in the beginning and 314.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 361.98ms. Allocated memory is still 383.8MB. Free memory was 314.1MB in the beginning and 297.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6311.88ms. Allocated memory was 383.8MB in the beginning and 572.5MB in the end (delta: 188.7MB). Free memory was 296.5MB in the beginning and 338.0MB in the end (delta: -41.4MB). Peak memory consumption was 146.8MB. 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: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] - GenericResultAtLocation [Line: 1233]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 108 PlacesBefore, 47 PlacesAfterwards, 104 TransitionsBefore, 43 TransitionsAfterwards, 2304 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 12387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3722, independent: 3178, independent conditional: 0, independent unconditional: 3178, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1042, independent: 985, independent conditional: 0, independent unconditional: 985, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3722, independent: 2193, independent conditional: 0, independent unconditional: 2193, dependent: 487, dependent conditional: 0, dependent unconditional: 487, unknown: 1042, unknown conditional: 0, unknown unconditional: 1042] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1244]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1245]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1247]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1239]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: 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, 140 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 416 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1581 IncrementalHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 103 mSDtfsCounter, 1581 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1357occurred in iteration=6, InterpolantAutomatonStates: 53, 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, 1.8s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:26:39,000 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...