/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:05:31,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:05:31,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 07:05:31,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:05:31,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:05:32,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:05:32,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:05:32,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:05:32,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:05:32,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:05:32,023 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:05:32,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:05:32,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:05:32,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:05:32,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:05:32,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:05:32,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:05:32,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:05:32,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:05:32,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:05:32,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:05:32,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:05:32,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:05:32,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:05:32,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:05:32,028 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:05:32,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:05:32,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:05:32,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:05:32,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:05:32,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:05:32,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:05:32,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:05:32,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:05:32,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:05:32,031 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:05:32,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:05:32,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:05:32,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:05:32,368 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:05:32,368 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:05:32,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-26 07:05:33,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:05:33,755 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:05:33,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-26 07:05:33,778 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a3c52a7/4e6d60aa2d0245569284309ce3b565fa/FLAGd1e7f6e6a [2023-08-26 07:05:33,796 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a3c52a7/4e6d60aa2d0245569284309ce3b565fa [2023-08-26 07:05:33,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:05:33,802 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:05:33,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:05:33,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:05:33,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:05:33,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:05:33" (1/1) ... [2023-08-26 07:05:33,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c31ce46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:33, skipping insertion in model container [2023-08-26 07:05:33,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:05:33" (1/1) ... [2023-08-26 07:05:33,867 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:05:34,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:05:34,298 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:05:34,324 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-26 07:05:34,336 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-26 07:05:34,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:05:34,417 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:05:34,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34 WrapperNode [2023-08-26 07:05:34,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:05:34,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:05:34,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:05:34,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:05:34,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,461 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-26 07:05:34,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:05:34,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:05:34,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:05:34,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:05:34,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:05:34,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:05:34,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:05:34,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:05:34,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (1/1) ... [2023-08-26 07:05:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:05:34,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:05:34,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 07:05:34,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 07:05:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:05:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:05:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:05:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:05:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:05:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:05:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:05:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:05:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:05:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:05:34,576 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:05:34,678 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:05:34,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:05:34,834 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:05:34,842 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:05:34,843 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:05:34,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:05:34 BoogieIcfgContainer [2023-08-26 07:05:34,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:05:34,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:05:34,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:05:34,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:05:34,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:05:33" (1/3) ... [2023-08-26 07:05:34,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db1971d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:05:34, skipping insertion in model container [2023-08-26 07:05:34,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:05:34" (2/3) ... [2023-08-26 07:05:34,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db1971d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:05:34, skipping insertion in model container [2023-08-26 07:05:34,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:05:34" (3/3) ... [2023-08-26 07:05:34,851 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-08-26 07:05:34,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:05:34,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-26 07:05:34,865 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:05:34,921 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:05:34,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-26 07:05:34,990 INFO L124 PetriNetUnfolderBase]: 1/78 cut-off events. [2023-08-26 07:05:34,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:34,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-26 07:05:34,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-26 07:05:34,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-08-26 07:05:35,000 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:05:35,008 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-26 07:05:35,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-26 07:05:35,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2023-08-26 07:05:35,029 INFO L124 PetriNetUnfolderBase]: 1/78 cut-off events. [2023-08-26 07:05:35,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:35,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-26 07:05:35,031 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2023-08-26 07:05:38,183 INFO L134 LiptonReduction]: Checked pairs total: 2759 [2023-08-26 07:05:38,184 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-26 07:05:38,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:05:38,201 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;@5891445, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:05:38,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-26 07:05:38,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:05:38,207 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-26 07:05:38,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:38,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:38,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:38,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:38,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1579949932, now seen corresponding path program 1 times [2023-08-26 07:05:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083478870] [2023-08-26 07:05:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:38,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:38,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083478870] [2023-08-26 07:05:38,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083478870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:38,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:38,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:05:38,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145784561] [2023-08-26 07:05:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:38,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:05:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:05:38,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:05:38,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2023-08-26 07:05:38,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:38,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:38,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2023-08-26 07:05:38,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:39,068 INFO L124 PetriNetUnfolderBase]: 102/228 cut-off events. [2023-08-26 07:05:39,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:05:39,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 228 events. 102/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 855 event pairs, 39 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 452. Up to 169 conditions per place. [2023-08-26 07:05:39,072 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 31 selfloop transitions, 21 changer transitions 8/60 dead transitions. [2023-08-26 07:05:39,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 60 transitions, 243 flow [2023-08-26 07:05:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:05:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:05:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 427 transitions. [2023-08-26 07:05:39,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194647201946472 [2023-08-26 07:05:39,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 427 transitions. [2023-08-26 07:05:39,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 427 transitions. [2023-08-26 07:05:39,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:39,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 427 transitions. [2023-08-26 07:05:39,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,098 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,099 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 427 transitions. [2023-08-26 07:05:39,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 60 transitions, 243 flow [2023-08-26 07:05:39,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 60 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:05:39,104 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-08-26 07:05:39,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-08-26 07:05:39,108 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-08-26 07:05:39,108 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-08-26 07:05:39,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:39,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:39,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:05:39,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:39,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1761623214, now seen corresponding path program 1 times [2023-08-26 07:05:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:39,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738257226] [2023-08-26 07:05:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:39,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:39,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:39,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:39,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738257226] [2023-08-26 07:05:39,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738257226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:39,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:39,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:05:39,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237064840] [2023-08-26 07:05:39,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:39,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:05:39,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:05:39,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:05:39,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-26 07:05:39,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:39,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-26 07:05:39,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:39,517 INFO L124 PetriNetUnfolderBase]: 122/272 cut-off events. [2023-08-26 07:05:39,517 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-26 07:05:39,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 272 events. 122/272 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1074 event pairs, 34 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 770. Up to 214 conditions per place. [2023-08-26 07:05:39,520 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 47 selfloop transitions, 25 changer transitions 8/80 dead transitions. [2023-08-26 07:05:39,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 80 transitions, 464 flow [2023-08-26 07:05:39,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:05:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:05:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 373 transitions. [2023-08-26 07:05:39,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537712895377129 [2023-08-26 07:05:39,523 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 373 transitions. [2023-08-26 07:05:39,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 373 transitions. [2023-08-26 07:05:39,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:39,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 373 transitions. [2023-08-26 07:05:39,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 62.166666666666664) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,527 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 373 transitions. [2023-08-26 07:05:39,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 80 transitions, 464 flow [2023-08-26 07:05:39,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 80 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:05:39,531 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-08-26 07:05:39,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-08-26 07:05:39,532 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-08-26 07:05:39,533 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-08-26 07:05:39,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:39,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:39,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:05:39,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:39,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1462696189, now seen corresponding path program 1 times [2023-08-26 07:05:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825400238] [2023-08-26 07:05:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:40,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825400238] [2023-08-26 07:05:40,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825400238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:40,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:40,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:40,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075606] [2023-08-26 07:05:40,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:40,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:40,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:40,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:40,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:40,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:40,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:40,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:40,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:40,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:40,387 INFO L124 PetriNetUnfolderBase]: 210/488 cut-off events. [2023-08-26 07:05:40,387 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES. [2023-08-26 07:05:40,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 488 events. 210/488 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2552 event pairs, 27 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 1765. Up to 244 conditions per place. [2023-08-26 07:05:40,394 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 118 selfloop transitions, 31 changer transitions 24/173 dead transitions. [2023-08-26 07:05:40,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 173 transitions, 1326 flow [2023-08-26 07:05:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 483 transitions. [2023-08-26 07:05:40,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35255474452554747 [2023-08-26 07:05:40,397 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 483 transitions. [2023-08-26 07:05:40,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 483 transitions. [2023-08-26 07:05:40,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:40,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 483 transitions. [2023-08-26 07:05:40,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:40,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:40,402 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:40,402 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 10 states and 483 transitions. [2023-08-26 07:05:40,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 173 transitions, 1326 flow [2023-08-26 07:05:40,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 173 transitions, 1236 flow, removed 45 selfloop flow, removed 0 redundant places. [2023-08-26 07:05:40,413 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 642 flow [2023-08-26 07:05:40,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=57, PETRI_TRANSITIONS=88} [2023-08-26 07:05:40,414 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-26 07:05:40,414 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 642 flow [2023-08-26 07:05:40,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:40,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:40,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:40,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:05:40,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:40,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash 260291229, now seen corresponding path program 2 times [2023-08-26 07:05:40,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:40,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382393118] [2023-08-26 07:05:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:40,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:41,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382393118] [2023-08-26 07:05:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382393118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:41,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:41,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491253115] [2023-08-26 07:05:41,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:41,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:41,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:41,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:41,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:41,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 88 transitions, 642 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:41,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:41,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:41,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:42,110 INFO L124 PetriNetUnfolderBase]: 216/486 cut-off events. [2023-08-26 07:05:42,110 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2023-08-26 07:05:42,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 486 events. 216/486 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2421 event pairs, 8 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 2068. Up to 100 conditions per place. [2023-08-26 07:05:42,115 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 85 selfloop transitions, 60 changer transitions 42/187 dead transitions. [2023-08-26 07:05:42,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 187 transitions, 1592 flow [2023-08-26 07:05:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:05:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:05:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 574 transitions. [2023-08-26 07:05:42,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3491484184914842 [2023-08-26 07:05:42,118 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 574 transitions. [2023-08-26 07:05:42,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 574 transitions. [2023-08-26 07:05:42,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:42,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 574 transitions. [2023-08-26 07:05:42,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.833333333333336) internal successors, (574), 12 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,123 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,123 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 642 flow. Second operand 12 states and 574 transitions. [2023-08-26 07:05:42,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 187 transitions, 1592 flow [2023-08-26 07:05:42,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 187 transitions, 1591 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:05:42,134 INFO L231 Difference]: Finished difference. Result has 73 places, 94 transitions, 899 flow [2023-08-26 07:05:42,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=899, PETRI_PLACES=73, PETRI_TRANSITIONS=94} [2023-08-26 07:05:42,135 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-08-26 07:05:42,135 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 94 transitions, 899 flow [2023-08-26 07:05:42,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:42,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:42,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:05:42,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:42,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:42,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1613412695, now seen corresponding path program 1 times [2023-08-26 07:05:42,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:42,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260409232] [2023-08-26 07:05:42,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:42,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:42,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:42,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260409232] [2023-08-26 07:05:42,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260409232] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:42,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:42,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:42,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433989746] [2023-08-26 07:05:42,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:42,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:42,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:42,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:42,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:42,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:42,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 94 transitions, 899 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:42,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:42,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:42,872 INFO L124 PetriNetUnfolderBase]: 204/473 cut-off events. [2023-08-26 07:05:42,872 INFO L125 PetriNetUnfolderBase]: For 1706/1706 co-relation queries the response was YES. [2023-08-26 07:05:42,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 473 events. 204/473 cut-off events. For 1706/1706 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2425 event pairs, 14 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 2444. Up to 364 conditions per place. [2023-08-26 07:05:42,876 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 70 selfloop transitions, 46 changer transitions 25/141 dead transitions. [2023-08-26 07:05:42,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 141 transitions, 1614 flow [2023-08-26 07:05:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:42,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 478 transitions. [2023-08-26 07:05:42,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34890510948905107 [2023-08-26 07:05:42,879 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 478 transitions. [2023-08-26 07:05:42,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 478 transitions. [2023-08-26 07:05:42,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:42,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 478 transitions. [2023-08-26 07:05:42,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.8) internal successors, (478), 10 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) [2023-08-26 07:05:42,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,883 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,883 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 899 flow. Second operand 10 states and 478 transitions. [2023-08-26 07:05:42,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 141 transitions, 1614 flow [2023-08-26 07:05:42,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 141 transitions, 1530 flow, removed 10 selfloop flow, removed 6 redundant places. [2023-08-26 07:05:42,895 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 1144 flow [2023-08-26 07:05:42,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2023-08-26 07:05:42,896 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-26 07:05:42,896 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 1144 flow [2023-08-26 07:05:42,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:42,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:42,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:05:42,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:42,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 313398775, now seen corresponding path program 2 times [2023-08-26 07:05:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782422732] [2023-08-26 07:05:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:43,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:43,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782422732] [2023-08-26 07:05:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782422732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:43,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948222151] [2023-08-26 07:05:43,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:43,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:43,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:43,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:43,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:43,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:43,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:43,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:43,966 INFO L124 PetriNetUnfolderBase]: 198/470 cut-off events. [2023-08-26 07:05:43,966 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2023-08-26 07:05:43,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2668 conditions, 470 events. 198/470 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2405 event pairs, 28 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 2630. Up to 304 conditions per place. [2023-08-26 07:05:43,970 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 61 selfloop transitions, 57 changer transitions 29/147 dead transitions. [2023-08-26 07:05:43,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 147 transitions, 1802 flow [2023-08-26 07:05:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:05:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:05:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 523 transitions. [2023-08-26 07:05:43,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3470471134704711 [2023-08-26 07:05:43,972 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 523 transitions. [2023-08-26 07:05:43,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 523 transitions. [2023-08-26 07:05:43,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:43,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 523 transitions. [2023-08-26 07:05:43,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:43,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:43,976 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:43,976 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 1144 flow. Second operand 11 states and 523 transitions. [2023-08-26 07:05:43,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 147 transitions, 1802 flow [2023-08-26 07:05:43,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 147 transitions, 1780 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-26 07:05:43,991 INFO L231 Difference]: Finished difference. Result has 87 places, 102 transitions, 1266 flow [2023-08-26 07:05:43,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1266, PETRI_PLACES=87, PETRI_TRANSITIONS=102} [2023-08-26 07:05:43,992 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-08-26 07:05:43,992 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 102 transitions, 1266 flow [2023-08-26 07:05:43,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:43,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:43,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:43,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:05:43,993 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:43,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1693801217, now seen corresponding path program 3 times [2023-08-26 07:05:43,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:43,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365117030] [2023-08-26 07:05:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:44,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:44,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365117030] [2023-08-26 07:05:44,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365117030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:44,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:44,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:44,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160457698] [2023-08-26 07:05:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:44,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:44,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:44,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:44,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 102 transitions, 1266 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:44,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:44,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:44,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:44,972 INFO L124 PetriNetUnfolderBase]: 219/512 cut-off events. [2023-08-26 07:05:44,973 INFO L125 PetriNetUnfolderBase]: For 2523/2523 co-relation queries the response was YES. [2023-08-26 07:05:44,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3131 conditions, 512 events. 219/512 cut-off events. For 2523/2523 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2719 event pairs, 18 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 3091. Up to 197 conditions per place. [2023-08-26 07:05:44,977 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 115 selfloop transitions, 12 changer transitions 95/222 dead transitions. [2023-08-26 07:05:44,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 222 transitions, 2816 flow [2023-08-26 07:05:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 07:05:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 07:05:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 737 transitions. [2023-08-26 07:05:44,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3362226277372263 [2023-08-26 07:05:44,980 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 737 transitions. [2023-08-26 07:05:44,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 737 transitions. [2023-08-26 07:05:44,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:44,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 737 transitions. [2023-08-26 07:05:44,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 46.0625) internal successors, (737), 16 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:44,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:44,986 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:44,986 INFO L175 Difference]: Start difference. First operand has 87 places, 102 transitions, 1266 flow. Second operand 16 states and 737 transitions. [2023-08-26 07:05:44,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 222 transitions, 2816 flow [2023-08-26 07:05:45,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 222 transitions, 2686 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-26 07:05:45,015 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 1057 flow [2023-08-26 07:05:45,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1057, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2023-08-26 07:05:45,016 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-08-26 07:05:45,016 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 1057 flow [2023-08-26 07:05:45,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:45,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:45,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:45,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:05:45,020 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:45,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:45,020 INFO L85 PathProgramCache]: Analyzing trace with hash 356297815, now seen corresponding path program 4 times [2023-08-26 07:05:45,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:45,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138295489] [2023-08-26 07:05:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:45,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:45,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138295489] [2023-08-26 07:05:45,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138295489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:45,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:45,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:45,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207194490] [2023-08-26 07:05:45,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:45,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:45,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:45,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:45,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:45,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:45,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 1057 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:45,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:45,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:45,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:46,456 INFO L124 PetriNetUnfolderBase]: 158/379 cut-off events. [2023-08-26 07:05:46,456 INFO L125 PetriNetUnfolderBase]: For 2299/2299 co-relation queries the response was YES. [2023-08-26 07:05:46,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2435 conditions, 379 events. 158/379 cut-off events. For 2299/2299 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1829 event pairs, 24 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 2388. Up to 266 conditions per place. [2023-08-26 07:05:46,460 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 59 selfloop transitions, 50 changer transitions 16/125 dead transitions. [2023-08-26 07:05:46,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 125 transitions, 1658 flow [2023-08-26 07:05:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:05:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:05:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 562 transitions. [2023-08-26 07:05:46,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3418491484184915 [2023-08-26 07:05:46,463 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 562 transitions. [2023-08-26 07:05:46,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 562 transitions. [2023-08-26 07:05:46,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:46,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 562 transitions. [2023-08-26 07:05:46,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.833333333333336) internal successors, (562), 12 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:46,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:46,467 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:46,468 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 1057 flow. Second operand 12 states and 562 transitions. [2023-08-26 07:05:46,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 125 transitions, 1658 flow [2023-08-26 07:05:46,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 125 transitions, 1498 flow, removed 65 selfloop flow, removed 13 redundant places. [2023-08-26 07:05:46,482 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 1120 flow [2023-08-26 07:05:46,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1120, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2023-08-26 07:05:46,483 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-08-26 07:05:46,483 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 1120 flow [2023-08-26 07:05:46,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:46,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:46,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:46,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:05:46,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:46,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1341160227, now seen corresponding path program 3 times [2023-08-26 07:05:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475498988] [2023-08-26 07:05:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:46,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475498988] [2023-08-26 07:05:46,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475498988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:46,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:46,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330073750] [2023-08-26 07:05:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:46,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:46,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:46,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:46,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:46,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:46,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 1120 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:46,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:46,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:46,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:47,833 INFO L124 PetriNetUnfolderBase]: 194/455 cut-off events. [2023-08-26 07:05:47,833 INFO L125 PetriNetUnfolderBase]: For 2536/2536 co-relation queries the response was YES. [2023-08-26 07:05:47,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2874 conditions, 455 events. 194/455 cut-off events. For 2536/2536 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2312 event pairs, 14 based on Foata normal form. 11/442 useless extension candidates. Maximal degree in co-relation 2832. Up to 141 conditions per place. [2023-08-26 07:05:47,837 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 145 selfloop transitions, 37 changer transitions 32/214 dead transitions. [2023-08-26 07:05:47,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 214 transitions, 2713 flow [2023-08-26 07:05:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 07:05:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 07:05:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 697 transitions. [2023-08-26 07:05:47,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3391727493917275 [2023-08-26 07:05:47,840 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 697 transitions. [2023-08-26 07:05:47,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 697 transitions. [2023-08-26 07:05:47,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:47,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 697 transitions. [2023-08-26 07:05:47,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 46.46666666666667) internal successors, (697), 15 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:47,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:47,845 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:47,845 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 1120 flow. Second operand 15 states and 697 transitions. [2023-08-26 07:05:47,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 214 transitions, 2713 flow [2023-08-26 07:05:47,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 214 transitions, 2443 flow, removed 37 selfloop flow, removed 9 redundant places. [2023-08-26 07:05:47,862 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 1466 flow [2023-08-26 07:05:47,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1466, PETRI_PLACES=107, PETRI_TRANSITIONS=115} [2023-08-26 07:05:47,863 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 83 predicate places. [2023-08-26 07:05:47,863 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 1466 flow [2023-08-26 07:05:47,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:47,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:47,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:47,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:05:47,864 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:47,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:47,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1611902375, now seen corresponding path program 5 times [2023-08-26 07:05:47,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:47,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013512669] [2023-08-26 07:05:47,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:47,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:48,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:48,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013512669] [2023-08-26 07:05:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013512669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:48,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:48,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048135840] [2023-08-26 07:05:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:48,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:48,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:48,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 115 transitions, 1466 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:48,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:48,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:48,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:48,642 INFO L124 PetriNetUnfolderBase]: 204/474 cut-off events. [2023-08-26 07:05:48,642 INFO L125 PetriNetUnfolderBase]: For 3077/3077 co-relation queries the response was YES. [2023-08-26 07:05:48,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3050 conditions, 474 events. 204/474 cut-off events. For 3077/3077 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2423 event pairs, 26 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 3002. Up to 372 conditions per place. [2023-08-26 07:05:48,647 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 78 selfloop transitions, 48 changer transitions 35/161 dead transitions. [2023-08-26 07:05:48,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 161 transitions, 2295 flow [2023-08-26 07:05:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:05:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:05:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 518 transitions. [2023-08-26 07:05:48,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34372926343729265 [2023-08-26 07:05:48,649 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 518 transitions. [2023-08-26 07:05:48,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 518 transitions. [2023-08-26 07:05:48,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:48,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 518 transitions. [2023-08-26 07:05:48,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.09090909090909) internal successors, (518), 11 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:48,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:48,653 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:48,653 INFO L175 Difference]: Start difference. First operand has 107 places, 115 transitions, 1466 flow. Second operand 11 states and 518 transitions. [2023-08-26 07:05:48,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 161 transitions, 2295 flow [2023-08-26 07:05:48,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 161 transitions, 2225 flow, removed 28 selfloop flow, removed 7 redundant places. [2023-08-26 07:05:48,674 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 1539 flow [2023-08-26 07:05:48,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1539, PETRI_PLACES=109, PETRI_TRANSITIONS=115} [2023-08-26 07:05:48,675 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 85 predicate places. [2023-08-26 07:05:48,675 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 1539 flow [2023-08-26 07:05:48,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:48,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:48,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:48,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:05:48,676 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:48,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 355920339, now seen corresponding path program 4 times [2023-08-26 07:05:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889141214] [2023-08-26 07:05:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:49,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:49,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889141214] [2023-08-26 07:05:49,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889141214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:49,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:49,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:49,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028644828] [2023-08-26 07:05:49,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:49,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:49,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:49,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:49,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 115 transitions, 1539 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:49,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:49,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:49,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:49,788 INFO L124 PetriNetUnfolderBase]: 203/476 cut-off events. [2023-08-26 07:05:49,788 INFO L125 PetriNetUnfolderBase]: For 3128/3128 co-relation queries the response was YES. [2023-08-26 07:05:49,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3220 conditions, 476 events. 203/476 cut-off events. For 3128/3128 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2448 event pairs, 11 based on Foata normal form. 11/462 useless extension candidates. Maximal degree in co-relation 3171. Up to 175 conditions per place. [2023-08-26 07:05:49,792 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 103 selfloop transitions, 66 changer transitions 22/191 dead transitions. [2023-08-26 07:05:49,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 191 transitions, 2690 flow [2023-08-26 07:05:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:05:49,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:05:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 565 transitions. [2023-08-26 07:05:49,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34367396593673966 [2023-08-26 07:05:49,794 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 565 transitions. [2023-08-26 07:05:49,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 565 transitions. [2023-08-26 07:05:49,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:49,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 565 transitions. [2023-08-26 07:05:49,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.083333333333336) internal successors, (565), 12 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:49,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:49,798 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:49,798 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 1539 flow. Second operand 12 states and 565 transitions. [2023-08-26 07:05:49,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 191 transitions, 2690 flow [2023-08-26 07:05:49,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 191 transitions, 2482 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-26 07:05:49,819 INFO L231 Difference]: Finished difference. Result has 113 places, 121 transitions, 1703 flow [2023-08-26 07:05:49,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1703, PETRI_PLACES=113, PETRI_TRANSITIONS=121} [2023-08-26 07:05:49,820 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 89 predicate places. [2023-08-26 07:05:49,820 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 121 transitions, 1703 flow [2023-08-26 07:05:49,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:49,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:49,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:49,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:05:49,821 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:49,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:49,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1707927225, now seen corresponding path program 6 times [2023-08-26 07:05:49,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:49,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893789675] [2023-08-26 07:05:49,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:49,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:50,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:50,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893789675] [2023-08-26 07:05:50,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893789675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:50,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:50,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:50,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952838549] [2023-08-26 07:05:50,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:50,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:50,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:50,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:50,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:50,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:50,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 121 transitions, 1703 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:50,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:50,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:50,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:50,486 INFO L124 PetriNetUnfolderBase]: 203/482 cut-off events. [2023-08-26 07:05:50,487 INFO L125 PetriNetUnfolderBase]: For 4137/4137 co-relation queries the response was YES. [2023-08-26 07:05:50,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3353 conditions, 482 events. 203/482 cut-off events. For 4137/4137 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2489 event pairs, 33 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 3304. Up to 345 conditions per place. [2023-08-26 07:05:50,491 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 72 selfloop transitions, 66 changer transitions 14/152 dead transitions. [2023-08-26 07:05:50,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 152 transitions, 2386 flow [2023-08-26 07:05:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 465 transitions. [2023-08-26 07:05:50,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33941605839416056 [2023-08-26 07:05:50,493 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 465 transitions. [2023-08-26 07:05:50,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 465 transitions. [2023-08-26 07:05:50,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:50,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 465 transitions. [2023-08-26 07:05:50,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.5) internal successors, (465), 10 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) [2023-08-26 07:05:50,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:50,496 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:50,496 INFO L175 Difference]: Start difference. First operand has 113 places, 121 transitions, 1703 flow. Second operand 10 states and 465 transitions. [2023-08-26 07:05:50,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 152 transitions, 2386 flow [2023-08-26 07:05:50,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 152 transitions, 2238 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-26 07:05:50,518 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 1884 flow [2023-08-26 07:05:50,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1884, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-08-26 07:05:50,519 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 94 predicate places. [2023-08-26 07:05:50,519 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 1884 flow [2023-08-26 07:05:50,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:50,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:50,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:50,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:05:50,520 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:50,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:50,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1867206827, now seen corresponding path program 7 times [2023-08-26 07:05:50,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:50,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903704686] [2023-08-26 07:05:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:50,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:51,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:51,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903704686] [2023-08-26 07:05:51,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903704686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:51,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:51,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:51,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052802774] [2023-08-26 07:05:51,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:51,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:51,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:51,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:51,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:51,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 1884 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:51,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:51,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:51,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:51,816 INFO L124 PetriNetUnfolderBase]: 224/524 cut-off events. [2023-08-26 07:05:51,816 INFO L125 PetriNetUnfolderBase]: For 4237/4237 co-relation queries the response was YES. [2023-08-26 07:05:51,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3692 conditions, 524 events. 224/524 cut-off events. For 4237/4237 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2803 event pairs, 25 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 3636. Up to 363 conditions per place. [2023-08-26 07:05:51,821 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 82 selfloop transitions, 58 changer transitions 52/192 dead transitions. [2023-08-26 07:05:51,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 192 transitions, 2970 flow [2023-08-26 07:05:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:05:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:05:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 646 transitions. [2023-08-26 07:05:51,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3368091762252346 [2023-08-26 07:05:51,823 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 646 transitions. [2023-08-26 07:05:51,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 646 transitions. [2023-08-26 07:05:51,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:51,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 646 transitions. [2023-08-26 07:05:51,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.142857142857146) internal successors, (646), 14 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:51,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:51,827 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:51,827 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 1884 flow. Second operand 14 states and 646 transitions. [2023-08-26 07:05:51,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 192 transitions, 2970 flow [2023-08-26 07:05:51,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 2864 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-08-26 07:05:51,854 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 1979 flow [2023-08-26 07:05:51,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1979, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2023-08-26 07:05:51,854 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 109 predicate places. [2023-08-26 07:05:51,855 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 1979 flow [2023-08-26 07:05:51,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:51,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:51,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:51,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 07:05:51,855 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:51,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:51,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2032720867, now seen corresponding path program 5 times [2023-08-26 07:05:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:51,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442168784] [2023-08-26 07:05:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:51,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:52,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:52,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442168784] [2023-08-26 07:05:52,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442168784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:52,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:52,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:52,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821026603] [2023-08-26 07:05:52,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:52,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:52,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:52,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:52,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:52,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:52,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 1979 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:52,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:52,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:52,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:53,091 INFO L124 PetriNetUnfolderBase]: 225/530 cut-off events. [2023-08-26 07:05:53,091 INFO L125 PetriNetUnfolderBase]: For 5388/5388 co-relation queries the response was YES. [2023-08-26 07:05:53,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4080 conditions, 530 events. 225/530 cut-off events. For 5388/5388 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2863 event pairs, 6 based on Foata normal form. 11/514 useless extension candidates. Maximal degree in co-relation 4018. Up to 247 conditions per place. [2023-08-26 07:05:53,097 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 128 selfloop transitions, 63 changer transitions 29/220 dead transitions. [2023-08-26 07:05:53,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 220 transitions, 3545 flow [2023-08-26 07:05:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-26 07:05:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-26 07:05:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 609 transitions. [2023-08-26 07:05:53,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3419427288040427 [2023-08-26 07:05:53,099 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 609 transitions. [2023-08-26 07:05:53,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 609 transitions. [2023-08-26 07:05:53,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:53,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 609 transitions. [2023-08-26 07:05:53,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.84615384615385) internal successors, (609), 13 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:53,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:53,103 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:53,103 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 1979 flow. Second operand 13 states and 609 transitions. [2023-08-26 07:05:53,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 220 transitions, 3545 flow [2023-08-26 07:05:53,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 220 transitions, 3204 flow, removed 79 selfloop flow, removed 13 redundant places. [2023-08-26 07:05:53,136 INFO L231 Difference]: Finished difference. Result has 133 places, 140 transitions, 2263 flow [2023-08-26 07:05:53,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1826, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2263, PETRI_PLACES=133, PETRI_TRANSITIONS=140} [2023-08-26 07:05:53,137 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 109 predicate places. [2023-08-26 07:05:53,137 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 140 transitions, 2263 flow [2023-08-26 07:05:53,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:53,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:53,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:53,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 07:05:53,138 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:53,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash 421187283, now seen corresponding path program 6 times [2023-08-26 07:05:53,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234564741] [2023-08-26 07:05:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:53,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:53,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234564741] [2023-08-26 07:05:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234564741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:53,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679920118] [2023-08-26 07:05:53,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:53,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:53,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:53,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 140 transitions, 2263 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:53,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:53,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:53,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:54,148 INFO L124 PetriNetUnfolderBase]: 206/491 cut-off events. [2023-08-26 07:05:54,149 INFO L125 PetriNetUnfolderBase]: For 5449/5449 co-relation queries the response was YES. [2023-08-26 07:05:54,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3715 conditions, 491 events. 206/491 cut-off events. For 5449/5449 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2587 event pairs, 12 based on Foata normal form. 11/476 useless extension candidates. Maximal degree in co-relation 3661. Up to 209 conditions per place. [2023-08-26 07:05:54,153 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 129 selfloop transitions, 52 changer transitions 36/217 dead transitions. [2023-08-26 07:05:54,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 217 transitions, 3393 flow [2023-08-26 07:05:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:05:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:05:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 645 transitions. [2023-08-26 07:05:54,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3362877997914494 [2023-08-26 07:05:54,156 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 645 transitions. [2023-08-26 07:05:54,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 645 transitions. [2023-08-26 07:05:54,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:54,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 645 transitions. [2023-08-26 07:05:54,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.07142857142857) internal successors, (645), 14 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,160 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,160 INFO L175 Difference]: Start difference. First operand has 133 places, 140 transitions, 2263 flow. Second operand 14 states and 645 transitions. [2023-08-26 07:05:54,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 217 transitions, 3393 flow [2023-08-26 07:05:54,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 217 transitions, 3227 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-26 07:05:54,191 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 2150 flow [2023-08-26 07:05:54,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2085, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2150, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2023-08-26 07:05:54,192 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-26 07:05:54,192 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 2150 flow [2023-08-26 07:05:54,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:54,192 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:54,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 07:05:54,192 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:54,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash -371102807, now seen corresponding path program 8 times [2023-08-26 07:05:54,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:54,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755338736] [2023-08-26 07:05:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:54,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:54,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:54,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755338736] [2023-08-26 07:05:54,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755338736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:54,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:54,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:54,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741808010] [2023-08-26 07:05:54,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:54,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:54,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:54,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:54,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 2150 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:54,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:54,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:54,909 INFO L124 PetriNetUnfolderBase]: 180/454 cut-off events. [2023-08-26 07:05:54,909 INFO L125 PetriNetUnfolderBase]: For 4565/4565 co-relation queries the response was YES. [2023-08-26 07:05:54,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3391 conditions, 454 events. 180/454 cut-off events. For 4565/4565 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2449 event pairs, 23 based on Foata normal form. 10/464 useless extension candidates. Maximal degree in co-relation 3338. Up to 327 conditions per place. [2023-08-26 07:05:54,914 INFO L140 encePairwiseOnDemand]: 124/137 looper letters, 73 selfloop transitions, 53 changer transitions 58/184 dead transitions. [2023-08-26 07:05:54,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 184 transitions, 3136 flow [2023-08-26 07:05:54,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:05:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:05:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 464 transitions. [2023-08-26 07:05:54,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3386861313868613 [2023-08-26 07:05:54,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 464 transitions. [2023-08-26 07:05:54,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 464 transitions. [2023-08-26 07:05:54,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:54,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 464 transitions. [2023-08-26 07:05:54,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.4) internal successors, (464), 10 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,919 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,919 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 2150 flow. Second operand 10 states and 464 transitions. [2023-08-26 07:05:54,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 184 transitions, 3136 flow [2023-08-26 07:05:54,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 184 transitions, 2490 flow, removed 44 selfloop flow, removed 19 redundant places. [2023-08-26 07:05:54,963 INFO L231 Difference]: Finished difference. Result has 124 places, 124 transitions, 1740 flow [2023-08-26 07:05:54,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1740, PETRI_PLACES=124, PETRI_TRANSITIONS=124} [2023-08-26 07:05:54,964 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 100 predicate places. [2023-08-26 07:05:54,964 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 1740 flow [2023-08-26 07:05:54,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:54,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:54,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:54,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 07:05:54,965 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:54,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1762740535, now seen corresponding path program 9 times [2023-08-26 07:05:54,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:54,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347288037] [2023-08-26 07:05:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:54,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:55,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:55,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347288037] [2023-08-26 07:05:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347288037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:55,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:55,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528422990] [2023-08-26 07:05:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:55,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:55,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:55,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:55,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:55,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 124 transitions, 1740 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:55,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:55,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:55,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:56,169 INFO L124 PetriNetUnfolderBase]: 178/458 cut-off events. [2023-08-26 07:05:56,169 INFO L125 PetriNetUnfolderBase]: For 3119/3119 co-relation queries the response was YES. [2023-08-26 07:05:56,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 458 events. 178/458 cut-off events. For 3119/3119 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2538 event pairs, 20 based on Foata normal form. 10/468 useless extension candidates. Maximal degree in co-relation 2954. Up to 279 conditions per place. [2023-08-26 07:05:56,174 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 88 selfloop transitions, 61 changer transitions 38/187 dead transitions. [2023-08-26 07:05:56,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 187 transitions, 2708 flow [2023-08-26 07:05:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-26 07:05:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-26 07:05:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 589 transitions. [2023-08-26 07:05:56,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33071308253790005 [2023-08-26 07:05:56,176 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 589 transitions. [2023-08-26 07:05:56,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 589 transitions. [2023-08-26 07:05:56,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:56,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 589 transitions. [2023-08-26 07:05:56,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.30769230769231) internal successors, (589), 13 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:56,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:56,180 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:56,180 INFO L175 Difference]: Start difference. First operand has 124 places, 124 transitions, 1740 flow. Second operand 13 states and 589 transitions. [2023-08-26 07:05:56,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 187 transitions, 2708 flow [2023-08-26 07:05:56,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 187 transitions, 2331 flow, removed 58 selfloop flow, removed 15 redundant places. [2023-08-26 07:05:56,199 INFO L231 Difference]: Finished difference. Result has 125 places, 126 transitions, 1655 flow [2023-08-26 07:05:56,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1655, PETRI_PLACES=125, PETRI_TRANSITIONS=126} [2023-08-26 07:05:56,200 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2023-08-26 07:05:56,200 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 126 transitions, 1655 flow [2023-08-26 07:05:56,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:56,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:56,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:56,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 07:05:56,200 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:56,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:56,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1688030159, now seen corresponding path program 10 times [2023-08-26 07:05:56,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:56,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067489452] [2023-08-26 07:05:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:56,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:56,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067489452] [2023-08-26 07:05:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067489452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:56,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:56,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968825403] [2023-08-26 07:05:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:56,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:56,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:56,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 126 transitions, 1655 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:56,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:56,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:56,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:57,383 INFO L124 PetriNetUnfolderBase]: 147/383 cut-off events. [2023-08-26 07:05:57,383 INFO L125 PetriNetUnfolderBase]: For 2465/2465 co-relation queries the response was YES. [2023-08-26 07:05:57,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 383 events. 147/383 cut-off events. For 2465/2465 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1988 event pairs, 24 based on Foata normal form. 16/399 useless extension candidates. Maximal degree in co-relation 2457. Up to 114 conditions per place. [2023-08-26 07:05:57,386 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 33 selfloop transitions, 28 changer transitions 147/208 dead transitions. [2023-08-26 07:05:57,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 208 transitions, 2795 flow [2023-08-26 07:05:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-26 07:05:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-26 07:05:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1000 transitions. [2023-08-26 07:05:57,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.317359568390987 [2023-08-26 07:05:57,389 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1000 transitions. [2023-08-26 07:05:57,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1000 transitions. [2023-08-26 07:05:57,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:57,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1000 transitions. [2023-08-26 07:05:57,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 43.47826086956522) internal successors, (1000), 23 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:57,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:57,395 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:57,395 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 1655 flow. Second operand 23 states and 1000 transitions. [2023-08-26 07:05:57,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 208 transitions, 2795 flow [2023-08-26 07:05:57,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 208 transitions, 2706 flow, removed 29 selfloop flow, removed 8 redundant places. [2023-08-26 07:05:57,414 INFO L231 Difference]: Finished difference. Result has 143 places, 57 transitions, 700 flow [2023-08-26 07:05:57,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1607, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=700, PETRI_PLACES=143, PETRI_TRANSITIONS=57} [2023-08-26 07:05:57,414 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 119 predicate places. [2023-08-26 07:05:57,414 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 57 transitions, 700 flow [2023-08-26 07:05:57,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:57,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:57,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:57,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 07:05:57,415 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-26 07:05:57,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1029171031, now seen corresponding path program 11 times [2023-08-26 07:05:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350801901] [2023-08-26 07:05:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:05:57,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:57,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350801901] [2023-08-26 07:05:57,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350801901] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:05:57,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:05:57,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:05:57,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166538511] [2023-08-26 07:05:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:05:57,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:05:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:57,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:05:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:05:57,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 137 [2023-08-26 07:05:57,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 57 transitions, 700 flow. Second operand has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:57,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:57,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 137 [2023-08-26 07:05:57,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:05:58,863 INFO L124 PetriNetUnfolderBase]: 37/112 cut-off events. [2023-08-26 07:05:58,863 INFO L125 PetriNetUnfolderBase]: For 936/936 co-relation queries the response was YES. [2023-08-26 07:05:58,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 112 events. 37/112 cut-off events. For 936/936 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 386 event pairs, 0 based on Foata normal form. 20/132 useless extension candidates. Maximal degree in co-relation 756. Up to 40 conditions per place. [2023-08-26 07:05:58,864 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-26 07:05:58,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 85 transitions, 1160 flow [2023-08-26 07:05:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-26 07:05:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-26 07:05:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 850 transitions. [2023-08-26 07:05:58,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3102189781021898 [2023-08-26 07:05:58,866 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 850 transitions. [2023-08-26 07:05:58,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 850 transitions. [2023-08-26 07:05:58,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:05:58,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 850 transitions. [2023-08-26 07:05:58,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 42.5) internal successors, (850), 20 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:58,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 137.0) internal successors, (2877), 21 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:58,871 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 137.0) internal successors, (2877), 21 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:58,871 INFO L175 Difference]: Start difference. First operand has 143 places, 57 transitions, 700 flow. Second operand 20 states and 850 transitions. [2023-08-26 07:05:58,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 85 transitions, 1160 flow [2023-08-26 07:05:58,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 85 transitions, 724 flow, removed 50 selfloop flow, removed 43 redundant places. [2023-08-26 07:05:58,876 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2023-08-26 07:05:58,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2023-08-26 07:05:58,877 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 64 predicate places. [2023-08-26 07:05:58,877 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2023-08-26 07:05:58,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 41.09090909090909) internal successors, (452), 11 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:05:58,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-26 07:05:58,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-26 07:05:58,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-26 07:05:58,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-26 07:05:58,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 07:05:58,881 INFO L445 BasicCegarLoop]: Path program histogram: [11, 6, 1, 1] [2023-08-26 07:05:58,885 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:05:58,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:05:58,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:05:58 BasicIcfg [2023-08-26 07:05:58,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:05:58,888 INFO L158 Benchmark]: Toolchain (without parser) took 25086.29ms. Allocated memory was 362.8MB in the beginning and 815.8MB in the end (delta: 453.0MB). Free memory was 336.8MB in the beginning and 397.2MB in the end (delta: -60.4MB). Peak memory consumption was 393.7MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,888 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 362.8MB. Free memory is still 339.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:05:58,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.02ms. Allocated memory is still 362.8MB. Free memory was 336.8MB in the beginning and 309.3MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 362.8MB. Free memory was 308.8MB in the beginning and 306.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,889 INFO L158 Benchmark]: Boogie Preprocessor took 35.58ms. Allocated memory is still 362.8MB. Free memory was 306.5MB in the beginning and 305.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,889 INFO L158 Benchmark]: RCFGBuilder took 346.30ms. Allocated memory is still 362.8MB. Free memory was 305.0MB in the beginning and 290.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,889 INFO L158 Benchmark]: TraceAbstraction took 24041.00ms. Allocated memory was 362.8MB in the beginning and 815.8MB in the end (delta: 453.0MB). Free memory was 289.8MB in the beginning and 397.2MB in the end (delta: -107.4MB). Peak memory consumption was 347.6MB. Max. memory is 16.0GB. [2023-08-26 07:05:58,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 362.8MB. Free memory is still 339.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 614.02ms. Allocated memory is still 362.8MB. Free memory was 336.8MB in the beginning and 309.3MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 362.8MB. Free memory was 308.8MB in the beginning and 306.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.58ms. Allocated memory is still 362.8MB. Free memory was 306.5MB in the beginning and 305.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 346.30ms. Allocated memory is still 362.8MB. Free memory was 305.0MB in the beginning and 290.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 24041.00ms. Allocated memory was 362.8MB in the beginning and 815.8MB in the end (delta: 453.0MB). Free memory was 289.8MB in the beginning and 397.2MB in the end (delta: -107.4MB). Peak memory consumption was 347.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 81 PlacesBefore, 24 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 956, independent: 716, independent conditional: 0, independent unconditional: 716, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 312, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 956, independent: 430, independent conditional: 0, independent unconditional: 430, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: 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, 96 locations, 4 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: 23.9s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1187 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1187 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 434 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4743 IncrementalHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 434 mSolverCounterUnsat, 57 mSDtfsCounter, 4743 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2263occurred in iteration=14, InterpolantAutomatonStates: 238, 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, 0.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 5653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:05:58,905 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...