./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:15:51,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:15:51,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:15:51,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:15:51,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:15:51,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:15:51,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:15:51,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:15:51,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:15:51,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:15:51,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:15:51,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:15:51,358 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:15:51,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:15:51,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:15:51,360 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:15:51,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:15:51,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:15:51,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:15:51,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:15:51,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:15:51,362 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2025-03-13 22:15:51,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:15:51,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:15:51,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:15:51,598 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:15:51,598 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:15:51,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2025-03-13 22:15:52,867 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99669985a/c295dd8499db4970a4b77bbdfc32a31d/FLAG9308e9177 [2025-03-13 22:15:53,126 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:15:53,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2025-03-13 22:15:53,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99669985a/c295dd8499db4970a4b77bbdfc32a31d/FLAG9308e9177 [2025-03-13 22:15:53,423 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99669985a/c295dd8499db4970a4b77bbdfc32a31d [2025-03-13 22:15:53,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:15:53,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:15:53,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:15:53,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:15:53,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:15:53,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e502ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53, skipping insertion in model container [2025-03-13 22:15:53,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:15:53,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:15:53,781 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:15:53,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:15:53,843 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:15:53,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53 WrapperNode [2025-03-13 22:15:53,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:15:53,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:15:53,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:15:53,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:15:53,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,874 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2025-03-13 22:15:53,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:15:53,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:15:53,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:15:53,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:15:53,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,889 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:15:53,897 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:15:53,897 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:15:53,897 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:15:53,898 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (1/1) ... [2025-03-13 22:15:53,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:15:53,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:53,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:15:53,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:15:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:15:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:15:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:15:53,939 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:15:54,035 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:15:54,036 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:15:54,182 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:15:54,182 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:15:54,182 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:15:54,200 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:15:54,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:15:54 BoogieIcfgContainer [2025-03-13 22:15:54,200 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:15:54,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:15:54,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:15:54,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:15:54,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:15:53" (1/3) ... [2025-03-13 22:15:54,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d634ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:15:54, skipping insertion in model container [2025-03-13 22:15:54,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:53" (2/3) ... [2025-03-13 22:15:54,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d634ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:15:54, skipping insertion in model container [2025-03-13 22:15:54,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:15:54" (3/3) ... [2025-03-13 22:15:54,207 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2025-03-13 22:15:54,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:15:54,221 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_13-equ_proc_nr.i that has 2 procedures, 81 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-13 22:15:54,222 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:15:54,270 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:15:54,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2025-03-13 22:15:54,343 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2025-03-13 22:15:54,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:15:54,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-03-13 22:15:54,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2025-03-13 22:15:54,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2025-03-13 22:15:54,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:15:54,370 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3e2254ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:15:54,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-13 22:15:54,385 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:15:54,385 INFO L124 PetriNetUnfolderBase]: 1/60 cut-off events. [2025-03-13 22:15:54,385 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:15:54,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:54,388 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:54,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:54,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1104607147, now seen corresponding path program 1 times [2025-03-13 22:15:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890971356] [2025-03-13 22:15:54,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:54,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:54,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-13 22:15:54,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-13 22:15:54,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:54,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:55,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:55,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890971356] [2025-03-13 22:15:55,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890971356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:55,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:55,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267240062] [2025-03-13 22:15:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:55,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:55,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:55,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:55,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2025-03-13 22:15:55,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:55,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2025-03-13 22:15:55,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:55,406 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2025-03-13 22:15:55,406 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:15:55,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1541 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2025-03-13 22:15:55,411 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2025-03-13 22:15:55,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2025-03-13 22:15:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2025-03-13 22:15:55,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2025-03-13 22:15:55,427 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2025-03-13 22:15:55,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2025-03-13 22:15:55,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:15:55,436 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2025-03-13 22:15:55,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2025-03-13 22:15:55,442 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2025-03-13 22:15:55,443 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2025-03-13 22:15:55,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:55,444 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:55,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:15:55,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:55,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:55,446 INFO L85 PathProgramCache]: Analyzing trace with hash -737367968, now seen corresponding path program 1 times [2025-03-13 22:15:55,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407614435] [2025-03-13 22:15:55,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:55,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:55,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-13 22:15:55,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-13 22:15:55,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:55,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:55,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:55,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407614435] [2025-03-13 22:15:55,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407614435] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:55,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:55,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:55,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872429385] [2025-03-13 22:15:55,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:55,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:55,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:55,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:55,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2025-03-13 22:15:55,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:55,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2025-03-13 22:15:55,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:55,966 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2025-03-13 22:15:55,966 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2025-03-13 22:15:55,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2611 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2025-03-13 22:15:55,973 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2025-03-13 22:15:55,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2025-03-13 22:15:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:55,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2025-03-13 22:15:55,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2025-03-13 22:15:55,975 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2025-03-13 22:15:55,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2025-03-13 22:15:55,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:55,983 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2025-03-13 22:15:55,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2025-03-13 22:15:55,984 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2025-03-13 22:15:55,984 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2025-03-13 22:15:55,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:55,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:55,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:15:55,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:55,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash 39838657, now seen corresponding path program 1 times [2025-03-13 22:15:55,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:55,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553781088] [2025-03-13 22:15:55,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:55,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:55,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:15:56,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:15:56,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:56,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:56,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:56,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553781088] [2025-03-13 22:15:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553781088] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:56,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:56,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-13 22:15:56,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840668117] [2025-03-13 22:15:56,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:56,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-13 22:15:56,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:56,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-13 22:15:56,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-13 22:15:56,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 81 [2025-03-13 22:15:56,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:56,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:56,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 81 [2025-03-13 22:15:56,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:56,668 INFO L124 PetriNetUnfolderBase]: 92/471 cut-off events. [2025-03-13 22:15:56,669 INFO L125 PetriNetUnfolderBase]: For 187/189 co-relation queries the response was YES. [2025-03-13 22:15:56,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 471 events. 92/471 cut-off events. For 187/189 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2437 event pairs, 14 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 906. Up to 84 conditions per place. [2025-03-13 22:15:56,671 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 17 selfloop transitions, 1 changer transitions 13/136 dead transitions. [2025-03-13 22:15:56,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 136 transitions, 650 flow [2025-03-13 22:15:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-13 22:15:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-13 22:15:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 529 transitions. [2025-03-13 22:15:56,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.816358024691358 [2025-03-13 22:15:56,673 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 8 states and 529 transitions. [2025-03-13 22:15:56,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 136 transitions, 650 flow [2025-03-13 22:15:56,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 136 transitions, 632 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:56,684 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 572 flow [2025-03-13 22:15:56,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=572, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2025-03-13 22:15:56,686 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 31 predicate places. [2025-03-13 22:15:56,686 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 572 flow [2025-03-13 22:15:56,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:56,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:56,687 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:56,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:15:56,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:56,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash 852415639, now seen corresponding path program 1 times [2025-03-13 22:15:56,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:56,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963869336] [2025-03-13 22:15:56,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:56,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:56,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:15:56,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:15:56,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:56,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:57,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:57,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963869336] [2025-03-13 22:15:57,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963869336] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:57,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:57,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:15:57,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568816758] [2025-03-13 22:15:57,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:57,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:15:57,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:57,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:15:57,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:15:57,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:15:57,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 572 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:57,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:57,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:15:57,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:58,117 INFO L124 PetriNetUnfolderBase]: 229/697 cut-off events. [2025-03-13 22:15:58,118 INFO L125 PetriNetUnfolderBase]: For 737/743 co-relation queries the response was YES. [2025-03-13 22:15:58,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 697 events. 229/697 cut-off events. For 737/743 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3616 event pairs, 27 based on Foata normal form. 10/704 useless extension candidates. Maximal degree in co-relation 2146. Up to 236 conditions per place. [2025-03-13 22:15:58,124 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 64 selfloop transitions, 36 changer transitions 48/198 dead transitions. [2025-03-13 22:15:58,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 1266 flow [2025-03-13 22:15:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-13 22:15:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-13 22:15:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2025-03-13 22:15:58,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7107583774250441 [2025-03-13 22:15:58,128 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 572 flow. Second operand 14 states and 806 transitions. [2025-03-13 22:15:58,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 1266 flow [2025-03-13 22:15:58,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 198 transitions, 1247 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-13 22:15:58,137 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 814 flow [2025-03-13 22:15:58,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=814, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2025-03-13 22:15:58,139 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2025-03-13 22:15:58,139 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 814 flow [2025-03-13 22:15:58,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:58,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:58,140 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:58,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:15:58,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:58,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2073143433, now seen corresponding path program 2 times [2025-03-13 22:15:58,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:58,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569899260] [2025-03-13 22:15:58,141 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:15:58,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:58,151 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:15:58,159 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:15:58,160 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:15:58,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:58,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569899260] [2025-03-13 22:15:58,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569899260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:58,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:58,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:15:58,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636104732] [2025-03-13 22:15:58,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:58,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:15:58,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:58,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:15:58,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:15:58,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:15:58,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 814 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:58,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:58,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:15:58,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:59,397 INFO L124 PetriNetUnfolderBase]: 189/619 cut-off events. [2025-03-13 22:15:59,398 INFO L125 PetriNetUnfolderBase]: For 1565/1584 co-relation queries the response was YES. [2025-03-13 22:15:59,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 619 events. 189/619 cut-off events. For 1565/1584 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3192 event pairs, 44 based on Foata normal form. 18/633 useless extension candidates. Maximal degree in co-relation 2353. Up to 256 conditions per place. [2025-03-13 22:15:59,403 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 57 selfloop transitions, 39 changer transitions 37/183 dead transitions. [2025-03-13 22:15:59,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 183 transitions, 1404 flow [2025-03-13 22:15:59,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-13 22:15:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-13 22:15:59,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 754 transitions. [2025-03-13 22:15:59,406 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2025-03-13 22:15:59,407 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 814 flow. Second operand 13 states and 754 transitions. [2025-03-13 22:15:59,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 183 transitions, 1404 flow [2025-03-13 22:15:59,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1363 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-03-13 22:15:59,420 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 855 flow [2025-03-13 22:15:59,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=855, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2025-03-13 22:15:59,421 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 50 predicate places. [2025-03-13 22:15:59,421 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 855 flow [2025-03-13 22:15:59,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:59,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:59,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:59,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:15:59,422 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:15:59,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1175257983, now seen corresponding path program 1 times [2025-03-13 22:15:59,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:59,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849632666] [2025-03-13 22:15:59,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:59,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:59,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:15:59,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:15:59,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:59,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:59,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849632666] [2025-03-13 22:15:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849632666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:59,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:15:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617927760] [2025-03-13 22:15:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:59,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:15:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:59,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:15:59,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:00,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:00,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 855 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:00,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:00,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:00,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:00,731 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2025-03-13 22:16:00,731 INFO L125 PetriNetUnfolderBase]: For 1720/1736 co-relation queries the response was YES. [2025-03-13 22:16:00,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 545 events. 163/545 cut-off events. For 1720/1736 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2690 event pairs, 23 based on Foata normal form. 13/554 useless extension candidates. Maximal degree in co-relation 2202. Up to 90 conditions per place. [2025-03-13 22:16:00,735 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 84 selfloop transitions, 38 changer transitions 14/183 dead transitions. [2025-03-13 22:16:00,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 1610 flow [2025-03-13 22:16:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-13 22:16:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-13 22:16:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2025-03-13 22:16:00,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6903292181069959 [2025-03-13 22:16:00,738 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 855 flow. Second operand 12 states and 671 transitions. [2025-03-13 22:16:00,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 1610 flow [2025-03-13 22:16:00,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1506 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-03-13 22:16:00,748 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 856 flow [2025-03-13 22:16:00,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=856, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2025-03-13 22:16:00,750 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2025-03-13 22:16:00,750 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 856 flow [2025-03-13 22:16:00,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:00,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:00,751 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:00,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:16:00,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:00,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1041661479, now seen corresponding path program 3 times [2025-03-13 22:16:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625080340] [2025-03-13 22:16:00,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:00,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:00,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:00,772 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:00,772 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:00,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:01,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:01,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625080340] [2025-03-13 22:16:01,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625080340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:01,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:01,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:01,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882661494] [2025-03-13 22:16:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:01,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:01,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:01,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:01,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:01,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:01,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 856 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:01,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:01,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:01,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:01,885 INFO L124 PetriNetUnfolderBase]: 169/524 cut-off events. [2025-03-13 22:16:01,885 INFO L125 PetriNetUnfolderBase]: For 1755/1779 co-relation queries the response was YES. [2025-03-13 22:16:01,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 524 events. 169/524 cut-off events. For 1755/1779 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2411 event pairs, 32 based on Foata normal form. 23/543 useless extension candidates. Maximal degree in co-relation 2327. Up to 230 conditions per place. [2025-03-13 22:16:01,888 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 55 selfloop transitions, 42 changer transitions 28/171 dead transitions. [2025-03-13 22:16:01,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1450 flow [2025-03-13 22:16:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-13 22:16:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-13 22:16:01,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 802 transitions. [2025-03-13 22:16:01,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7072310405643739 [2025-03-13 22:16:01,890 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 856 flow. Second operand 14 states and 802 transitions. [2025-03-13 22:16:01,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1450 flow [2025-03-13 22:16:01,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 171 transitions, 1330 flow, removed 0 selfloop flow, removed 11 redundant places. [2025-03-13 22:16:01,897 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 917 flow [2025-03-13 22:16:01,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2025-03-13 22:16:01,898 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 49 predicate places. [2025-03-13 22:16:01,898 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 917 flow [2025-03-13 22:16:01,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:01,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:01,899 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:01,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:16:01,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:01,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1081407525, now seen corresponding path program 4 times [2025-03-13 22:16:01,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:01,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434248424] [2025-03-13 22:16:01,900 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 22:16:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:01,906 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 58 statements into 2 equivalence classes. [2025-03-13 22:16:01,909 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 49 of 58 statements. [2025-03-13 22:16:01,909 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-13 22:16:01,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:02,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:02,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434248424] [2025-03-13 22:16:02,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434248424] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:02,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:02,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:02,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303845981] [2025-03-13 22:16:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:02,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:02,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:02,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:02,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:02,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:02,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 917 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:02,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:02,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:02,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:02,910 INFO L124 PetriNetUnfolderBase]: 171/558 cut-off events. [2025-03-13 22:16:02,911 INFO L125 PetriNetUnfolderBase]: For 2977/3000 co-relation queries the response was YES. [2025-03-13 22:16:02,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 558 events. 171/558 cut-off events. For 2977/3000 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2709 event pairs, 27 based on Foata normal form. 19/575 useless extension candidates. Maximal degree in co-relation 2465. Up to 129 conditions per place. [2025-03-13 22:16:02,914 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 114 selfloop transitions, 37 changer transitions 12/209 dead transitions. [2025-03-13 22:16:02,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 209 transitions, 2018 flow [2025-03-13 22:16:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 833 transitions. [2025-03-13 22:16:02,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68559670781893 [2025-03-13 22:16:02,916 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 917 flow. Second operand 15 states and 833 transitions. [2025-03-13 22:16:02,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 209 transitions, 2018 flow [2025-03-13 22:16:02,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 209 transitions, 1690 flow, removed 58 selfloop flow, removed 16 redundant places. [2025-03-13 22:16:02,926 INFO L231 Difference]: Finished difference. Result has 137 places, 147 transitions, 1080 flow [2025-03-13 22:16:02,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1080, PETRI_PLACES=137, PETRI_TRANSITIONS=147} [2025-03-13 22:16:02,927 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 54 predicate places. [2025-03-13 22:16:02,927 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 147 transitions, 1080 flow [2025-03-13 22:16:02,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:02,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:02,927 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:02,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:16:02,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:02,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash -436178463, now seen corresponding path program 5 times [2025-03-13 22:16:02,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:02,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18691274] [2025-03-13 22:16:02,928 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:02,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:02,935 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:02,938 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:02,939 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:02,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:03,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:03,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18691274] [2025-03-13 22:16:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18691274] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:03,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:03,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:03,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512843657] [2025-03-13 22:16:03,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:03,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:03,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:03,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:03,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:03,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:03,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 1080 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:03,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:03,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:03,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:03,942 INFO L124 PetriNetUnfolderBase]: 177/550 cut-off events. [2025-03-13 22:16:03,942 INFO L125 PetriNetUnfolderBase]: For 2499/2531 co-relation queries the response was YES. [2025-03-13 22:16:03,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 550 events. 177/550 cut-off events. For 2499/2531 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2643 event pairs, 33 based on Foata normal form. 25/571 useless extension candidates. Maximal degree in co-relation 2542. Up to 263 conditions per place. [2025-03-13 22:16:03,945 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 71 selfloop transitions, 41 changer transitions 32/190 dead transitions. [2025-03-13 22:16:03,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 190 transitions, 1729 flow [2025-03-13 22:16:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-13 22:16:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-13 22:16:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 787 transitions. [2025-03-13 22:16:03,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6940035273368607 [2025-03-13 22:16:03,947 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 1080 flow. Second operand 14 states and 787 transitions. [2025-03-13 22:16:03,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 190 transitions, 1729 flow [2025-03-13 22:16:03,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 190 transitions, 1657 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-03-13 22:16:03,959 INFO L231 Difference]: Finished difference. Result has 144 places, 143 transitions, 1123 flow [2025-03-13 22:16:03,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1123, PETRI_PLACES=144, PETRI_TRANSITIONS=143} [2025-03-13 22:16:03,960 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 61 predicate places. [2025-03-13 22:16:03,961 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 143 transitions, 1123 flow [2025-03-13 22:16:03,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:03,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:03,961 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:03,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 22:16:03,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:03,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash -43389585, now seen corresponding path program 6 times [2025-03-13 22:16:03,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:03,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373381112] [2025-03-13 22:16:03,963 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 22:16:03,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:03,973 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:03,978 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:03,978 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 22:16:03,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:04,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373381112] [2025-03-13 22:16:04,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373381112] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:04,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:04,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:04,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138459378] [2025-03-13 22:16:04,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:04,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:04,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:04,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:04,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:04,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:04,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 143 transitions, 1123 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:04,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:04,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:04,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:05,024 INFO L124 PetriNetUnfolderBase]: 212/657 cut-off events. [2025-03-13 22:16:05,024 INFO L125 PetriNetUnfolderBase]: For 4504/4543 co-relation queries the response was YES. [2025-03-13 22:16:05,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 657 events. 212/657 cut-off events. For 4504/4543 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3478 event pairs, 32 based on Foata normal form. 28/682 useless extension candidates. Maximal degree in co-relation 3067. Up to 220 conditions per place. [2025-03-13 22:16:05,034 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 126 selfloop transitions, 50 changer transitions 16/238 dead transitions. [2025-03-13 22:16:05,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 238 transitions, 2375 flow [2025-03-13 22:16:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2025-03-13 22:16:05,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2025-03-13 22:16:05,036 INFO L175 Difference]: Start difference. First operand has 144 places, 143 transitions, 1123 flow. Second operand 15 states and 838 transitions. [2025-03-13 22:16:05,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 238 transitions, 2375 flow [2025-03-13 22:16:05,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 238 transitions, 2237 flow, removed 25 selfloop flow, removed 10 redundant places. [2025-03-13 22:16:05,051 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1521 flow [2025-03-13 22:16:05,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1521, PETRI_PLACES=153, PETRI_TRANSITIONS=170} [2025-03-13 22:16:05,053 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 70 predicate places. [2025-03-13 22:16:05,053 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1521 flow [2025-03-13 22:16:05,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:05,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:05,053 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:05,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 22:16:05,053 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:05,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:05,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1555094441, now seen corresponding path program 7 times [2025-03-13 22:16:05,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:05,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074890268] [2025-03-13 22:16:05,054 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-13 22:16:05,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:05,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:05,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:05,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:16:05,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:05,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:05,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074890268] [2025-03-13 22:16:05,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074890268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:05,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:05,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:05,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143894716] [2025-03-13 22:16:05,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:05,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:05,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:05,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:05,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:05,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:05,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 170 transitions, 1521 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:05,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:05,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:05,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:06,267 INFO L124 PetriNetUnfolderBase]: 246/735 cut-off events. [2025-03-13 22:16:06,267 INFO L125 PetriNetUnfolderBase]: For 5786/5825 co-relation queries the response was YES. [2025-03-13 22:16:06,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 735 events. 246/735 cut-off events. For 5786/5825 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4006 event pairs, 41 based on Foata normal form. 28/758 useless extension candidates. Maximal degree in co-relation 3682. Up to 257 conditions per place. [2025-03-13 22:16:06,274 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 143 selfloop transitions, 56 changer transitions 18/263 dead transitions. [2025-03-13 22:16:06,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 2818 flow [2025-03-13 22:16:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2025-03-13 22:16:06,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2025-03-13 22:16:06,277 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1521 flow. Second operand 15 states and 841 transitions. [2025-03-13 22:16:06,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 2818 flow [2025-03-13 22:16:06,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 2724 flow, removed 35 selfloop flow, removed 8 redundant places. [2025-03-13 22:16:06,307 INFO L231 Difference]: Finished difference. Result has 166 places, 190 transitions, 1898 flow [2025-03-13 22:16:06,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1898, PETRI_PLACES=166, PETRI_TRANSITIONS=190} [2025-03-13 22:16:06,308 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 83 predicate places. [2025-03-13 22:16:06,308 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 190 transitions, 1898 flow [2025-03-13 22:16:06,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:06,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:06,309 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:06,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 22:16:06,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:06,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash 498538627, now seen corresponding path program 8 times [2025-03-13 22:16:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:06,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577673313] [2025-03-13 22:16:06,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:16:06,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:06,319 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:06,323 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:06,324 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:06,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:06,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:06,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577673313] [2025-03-13 22:16:06,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577673313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:06,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26801869] [2025-03-13 22:16:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:06,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:06,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:06,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:06,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:06,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 190 transitions, 1898 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:06,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:06,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:06,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:07,363 INFO L124 PetriNetUnfolderBase]: 241/724 cut-off events. [2025-03-13 22:16:07,363 INFO L125 PetriNetUnfolderBase]: For 7822/7864 co-relation queries the response was YES. [2025-03-13 22:16:07,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4058 conditions, 724 events. 241/724 cut-off events. For 7822/7864 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3883 event pairs, 23 based on Foata normal form. 35/758 useless extension candidates. Maximal degree in co-relation 4005. Up to 309 conditions per place. [2025-03-13 22:16:07,369 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 142 selfloop transitions, 54 changer transitions 19/261 dead transitions. [2025-03-13 22:16:07,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 261 transitions, 3113 flow [2025-03-13 22:16:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2025-03-13 22:16:07,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2025-03-13 22:16:07,371 INFO L175 Difference]: Start difference. First operand has 166 places, 190 transitions, 1898 flow. Second operand 15 states and 836 transitions. [2025-03-13 22:16:07,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 261 transitions, 3113 flow [2025-03-13 22:16:07,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 261 transitions, 2976 flow, removed 62 selfloop flow, removed 8 redundant places. [2025-03-13 22:16:07,394 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 2173 flow [2025-03-13 22:16:07,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2173, PETRI_PLACES=177, PETRI_TRANSITIONS=203} [2025-03-13 22:16:07,396 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2025-03-13 22:16:07,396 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 2173 flow [2025-03-13 22:16:07,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:07,397 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:07,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:07,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-13 22:16:07,397 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:07,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:07,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1777119357, now seen corresponding path program 9 times [2025-03-13 22:16:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580068681] [2025-03-13 22:16:07,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:07,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:07,404 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:07,408 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:07,409 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:07,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:07,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580068681] [2025-03-13 22:16:07,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580068681] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:07,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:07,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:07,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854331352] [2025-03-13 22:16:07,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:07,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:07,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:07,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:07,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:07,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:07,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 203 transitions, 2173 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:07,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:07,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:07,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:08,425 INFO L124 PetriNetUnfolderBase]: 218/686 cut-off events. [2025-03-13 22:16:08,425 INFO L125 PetriNetUnfolderBase]: For 8055/8099 co-relation queries the response was YES. [2025-03-13 22:16:08,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 686 events. 218/686 cut-off events. For 8055/8099 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3670 event pairs, 20 based on Foata normal form. 40/725 useless extension candidates. Maximal degree in co-relation 3818. Up to 340 conditions per place. [2025-03-13 22:16:08,432 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 123 selfloop transitions, 48 changer transitions 30/247 dead transitions. [2025-03-13 22:16:08,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 247 transitions, 3042 flow [2025-03-13 22:16:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2025-03-13 22:16:08,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2025-03-13 22:16:08,434 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 2173 flow. Second operand 15 states and 834 transitions. [2025-03-13 22:16:08,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 247 transitions, 3042 flow [2025-03-13 22:16:08,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 247 transitions, 2911 flow, removed 46 selfloop flow, removed 9 redundant places. [2025-03-13 22:16:08,468 INFO L231 Difference]: Finished difference. Result has 186 places, 199 transitions, 2147 flow [2025-03-13 22:16:08,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2062, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2147, PETRI_PLACES=186, PETRI_TRANSITIONS=199} [2025-03-13 22:16:08,469 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 103 predicate places. [2025-03-13 22:16:08,469 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 199 transitions, 2147 flow [2025-03-13 22:16:08,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:08,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:08,470 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:08,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-13 22:16:08,470 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:08,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:08,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1968065439, now seen corresponding path program 10 times [2025-03-13 22:16:08,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:08,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35578565] [2025-03-13 22:16:08,471 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 22:16:08,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:08,478 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 58 statements into 2 equivalence classes. [2025-03-13 22:16:08,480 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 49 of 58 statements. [2025-03-13 22:16:08,481 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-13 22:16:08,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:08,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:08,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35578565] [2025-03-13 22:16:08,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35578565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:08,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:08,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:08,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964072633] [2025-03-13 22:16:08,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:08,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:08,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:08,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:08,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:09,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:09,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 199 transitions, 2147 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:09,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:09,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:09,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:09,657 INFO L124 PetriNetUnfolderBase]: 212/684 cut-off events. [2025-03-13 22:16:09,657 INFO L125 PetriNetUnfolderBase]: For 8795/8835 co-relation queries the response was YES. [2025-03-13 22:16:09,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 684 events. 212/684 cut-off events. For 8795/8835 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3704 event pairs, 27 based on Foata normal form. 44/726 useless extension candidates. Maximal degree in co-relation 3807. Up to 355 conditions per place. [2025-03-13 22:16:09,663 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 116 selfloop transitions, 58 changer transitions 26/246 dead transitions. [2025-03-13 22:16:09,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 246 transitions, 3001 flow [2025-03-13 22:16:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:09,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 842 transitions. [2025-03-13 22:16:09,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930041152263374 [2025-03-13 22:16:09,664 INFO L175 Difference]: Start difference. First operand has 186 places, 199 transitions, 2147 flow. Second operand 15 states and 842 transitions. [2025-03-13 22:16:09,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 246 transitions, 3001 flow [2025-03-13 22:16:09,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 246 transitions, 2899 flow, removed 23 selfloop flow, removed 11 redundant places. [2025-03-13 22:16:09,689 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 2271 flow [2025-03-13 22:16:09,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2068, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2271, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2025-03-13 22:16:09,690 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 109 predicate places. [2025-03-13 22:16:09,690 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 2271 flow [2025-03-13 22:16:09,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:09,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:09,690 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:09,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-13 22:16:09,690 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:09,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1036623203, now seen corresponding path program 11 times [2025-03-13 22:16:09,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:09,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085890519] [2025-03-13 22:16:09,691 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:09,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:09,696 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:09,699 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:09,699 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:09,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:09,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:09,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085890519] [2025-03-13 22:16:09,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085890519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:09,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:09,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:09,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374096375] [2025-03-13 22:16:09,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:09,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:09,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:09,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:09,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:10,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:10,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 2271 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:10,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:10,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:10,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:10,738 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2025-03-13 22:16:10,738 INFO L125 PetriNetUnfolderBase]: For 12688/12728 co-relation queries the response was YES. [2025-03-13 22:16:10,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 796 events. 250/796 cut-off events. For 12688/12728 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4569 event pairs, 33 based on Foata normal form. 31/825 useless extension candidates. Maximal degree in co-relation 4747. Up to 359 conditions per place. [2025-03-13 22:16:10,748 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 153 selfloop transitions, 62 changer transitions 13/274 dead transitions. [2025-03-13 22:16:10,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 274 transitions, 3705 flow [2025-03-13 22:16:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2025-03-13 22:16:10,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2025-03-13 22:16:10,750 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 2271 flow. Second operand 15 states and 838 transitions. [2025-03-13 22:16:10,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 274 transitions, 3705 flow [2025-03-13 22:16:10,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 274 transitions, 3471 flow, removed 53 selfloop flow, removed 14 redundant places. [2025-03-13 22:16:10,797 INFO L231 Difference]: Finished difference. Result has 196 places, 222 transitions, 2675 flow [2025-03-13 22:16:10,797 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2675, PETRI_PLACES=196, PETRI_TRANSITIONS=222} [2025-03-13 22:16:10,798 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 113 predicate places. [2025-03-13 22:16:10,798 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 222 transitions, 2675 flow [2025-03-13 22:16:10,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:10,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:10,798 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:10,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-13 22:16:10,798 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:10,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash 666751813, now seen corresponding path program 12 times [2025-03-13 22:16:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773654559] [2025-03-13 22:16:10,799 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 22:16:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:10,806 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:10,809 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:10,809 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 22:16:10,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:11,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773654559] [2025-03-13 22:16:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773654559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:11,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:11,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:11,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555692272] [2025-03-13 22:16:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:11,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:11,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:11,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:11,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:11,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:11,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 222 transitions, 2675 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:11,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:11,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:11,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:11,830 INFO L124 PetriNetUnfolderBase]: 256/834 cut-off events. [2025-03-13 22:16:11,830 INFO L125 PetriNetUnfolderBase]: For 13097/13138 co-relation queries the response was YES. [2025-03-13 22:16:11,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 834 events. 256/834 cut-off events. For 13097/13138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4991 event pairs, 36 based on Foata normal form. 36/865 useless extension candidates. Maximal degree in co-relation 5063. Up to 444 conditions per place. [2025-03-13 22:16:11,836 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 60 changer transitions 23/267 dead transitions. [2025-03-13 22:16:11,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 267 transitions, 3657 flow [2025-03-13 22:16:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2025-03-13 22:16:11,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2025-03-13 22:16:11,839 INFO L175 Difference]: Start difference. First operand has 196 places, 222 transitions, 2675 flow. Second operand 15 states and 836 transitions. [2025-03-13 22:16:11,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 267 transitions, 3657 flow [2025-03-13 22:16:11,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 267 transitions, 3499 flow, removed 71 selfloop flow, removed 7 redundant places. [2025-03-13 22:16:11,882 INFO L231 Difference]: Finished difference. Result has 207 places, 227 transitions, 2771 flow [2025-03-13 22:16:11,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2771, PETRI_PLACES=207, PETRI_TRANSITIONS=227} [2025-03-13 22:16:11,882 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 124 predicate places. [2025-03-13 22:16:11,882 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 227 transitions, 2771 flow [2025-03-13 22:16:11,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:11,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:11,883 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:11,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-13 22:16:11,883 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:11,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash 670684887, now seen corresponding path program 13 times [2025-03-13 22:16:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:11,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237212158] [2025-03-13 22:16:11,883 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-13 22:16:11,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:11,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:11,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:11,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:16:11,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:12,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:12,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237212158] [2025-03-13 22:16:12,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237212158] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:12,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:12,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:12,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608020169] [2025-03-13 22:16:12,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:12,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:12,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:12,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:12,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:12,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:12,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 227 transitions, 2771 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:12,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:12,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:12,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:12,744 INFO L124 PetriNetUnfolderBase]: 245/810 cut-off events. [2025-03-13 22:16:12,744 INFO L125 PetriNetUnfolderBase]: For 13695/13731 co-relation queries the response was YES. [2025-03-13 22:16:12,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4979 conditions, 810 events. 245/810 cut-off events. For 13695/13731 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4795 event pairs, 36 based on Foata normal form. 35/837 useless extension candidates. Maximal degree in co-relation 4912. Up to 383 conditions per place. [2025-03-13 22:16:12,750 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 139 selfloop transitions, 67 changer transitions 26/278 dead transitions. [2025-03-13 22:16:12,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 3896 flow [2025-03-13 22:16:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 837 transitions. [2025-03-13 22:16:12,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2025-03-13 22:16:12,751 INFO L175 Difference]: Start difference. First operand has 207 places, 227 transitions, 2771 flow. Second operand 15 states and 837 transitions. [2025-03-13 22:16:12,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 3896 flow [2025-03-13 22:16:12,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 278 transitions, 3786 flow, removed 31 selfloop flow, removed 11 redundant places. [2025-03-13 22:16:12,790 INFO L231 Difference]: Finished difference. Result has 215 places, 227 transitions, 2911 flow [2025-03-13 22:16:12,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2700, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2911, PETRI_PLACES=215, PETRI_TRANSITIONS=227} [2025-03-13 22:16:12,790 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 132 predicate places. [2025-03-13 22:16:12,790 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 227 transitions, 2911 flow [2025-03-13 22:16:12,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:12,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:12,791 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:12,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-13 22:16:12,791 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:12,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1756442945, now seen corresponding path program 14 times [2025-03-13 22:16:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631883014] [2025-03-13 22:16:12,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:16:12,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:12,798 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:12,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:12,801 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:12,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631883014] [2025-03-13 22:16:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631883014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:13,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709168320] [2025-03-13 22:16:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:13,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:13,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:13,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:13,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:13,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 227 transitions, 2911 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:13,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:13,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:13,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:13,789 INFO L124 PetriNetUnfolderBase]: 230/778 cut-off events. [2025-03-13 22:16:13,789 INFO L125 PetriNetUnfolderBase]: For 13615/13655 co-relation queries the response was YES. [2025-03-13 22:16:13,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 778 events. 230/778 cut-off events. For 13615/13655 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4586 event pairs, 38 based on Foata normal form. 27/795 useless extension candidates. Maximal degree in co-relation 4778. Up to 443 conditions per place. [2025-03-13 22:16:13,794 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 137 selfloop transitions, 55 changer transitions 15/253 dead transitions. [2025-03-13 22:16:13,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 3622 flow [2025-03-13 22:16:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-13 22:16:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-13 22:16:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2025-03-13 22:16:13,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.681657848324515 [2025-03-13 22:16:13,795 INFO L175 Difference]: Start difference. First operand has 215 places, 227 transitions, 2911 flow. Second operand 14 states and 773 transitions. [2025-03-13 22:16:13,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 3622 flow [2025-03-13 22:16:13,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 253 transitions, 3475 flow, removed 56 selfloop flow, removed 8 redundant places. [2025-03-13 22:16:13,848 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 2930 flow [2025-03-13 22:16:13,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2930, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2025-03-13 22:16:13,849 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 138 predicate places. [2025-03-13 22:16:13,849 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 2930 flow [2025-03-13 22:16:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:13,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:13,849 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:13,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-13 22:16:13,849 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:13,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:13,849 INFO L85 PathProgramCache]: Analyzing trace with hash -490304565, now seen corresponding path program 15 times [2025-03-13 22:16:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001286817] [2025-03-13 22:16:13,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:13,858 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-13 22:16:13,864 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-13 22:16:13,864 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:13,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:14,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:14,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001286817] [2025-03-13 22:16:14,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001286817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:14,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:14,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:14,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440351713] [2025-03-13 22:16:14,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:14,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:14,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:14,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:14,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:14,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:14,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 2930 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:14,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:14,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:14,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:14,796 INFO L124 PetriNetUnfolderBase]: 221/754 cut-off events. [2025-03-13 22:16:14,797 INFO L125 PetriNetUnfolderBase]: For 13564/13594 co-relation queries the response was YES. [2025-03-13 22:16:14,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 754 events. 221/754 cut-off events. For 13564/13594 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4394 event pairs, 38 based on Foata normal form. 28/769 useless extension candidates. Maximal degree in co-relation 4566. Up to 408 conditions per place. [2025-03-13 22:16:14,802 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 135 selfloop transitions, 55 changer transitions 29/265 dead transitions. [2025-03-13 22:16:14,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 265 transitions, 3835 flow [2025-03-13 22:16:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-13 22:16:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-13 22:16:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 831 transitions. [2025-03-13 22:16:14,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6839506172839506 [2025-03-13 22:16:14,803 INFO L175 Difference]: Start difference. First operand has 221 places, 228 transitions, 2930 flow. Second operand 15 states and 831 transitions. [2025-03-13 22:16:14,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 265 transitions, 3835 flow [2025-03-13 22:16:14,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 265 transitions, 3678 flow, removed 32 selfloop flow, removed 12 redundant places. [2025-03-13 22:16:14,843 INFO L231 Difference]: Finished difference. Result has 227 places, 221 transitions, 2801 flow [2025-03-13 22:16:14,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2805, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2801, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2025-03-13 22:16:14,843 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 144 predicate places. [2025-03-13 22:16:14,843 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 2801 flow [2025-03-13 22:16:14,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:14,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:14,844 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:14,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-13 22:16:14,844 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:14,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 905020589, now seen corresponding path program 1 times [2025-03-13 22:16:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:14,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004312303] [2025-03-13 22:16:14,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:16:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:14,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-13 22:16:14,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-13 22:16:14,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:16:14,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:15,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:15,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004312303] [2025-03-13 22:16:15,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004312303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:15,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:15,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:15,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587100691] [2025-03-13 22:16:15,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:15,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:15,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:15,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:15,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:15,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 2801 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:15,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:15,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:15,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:15,825 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2025-03-13 22:16:15,825 INFO L125 PetriNetUnfolderBase]: For 12030/12056 co-relation queries the response was YES. [2025-03-13 22:16:15,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4330 conditions, 740 events. 208/740 cut-off events. For 12030/12056 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4323 event pairs, 16 based on Foata normal form. 13/749 useless extension candidates. Maximal degree in co-relation 4257. Up to 223 conditions per place. [2025-03-13 22:16:15,830 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2025-03-13 22:16:15,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 262 transitions, 3727 flow [2025-03-13 22:16:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-13 22:16:15,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-13 22:16:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2025-03-13 22:16:15,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2025-03-13 22:16:15,831 INFO L175 Difference]: Start difference. First operand has 227 places, 221 transitions, 2801 flow. Second operand 18 states and 977 transitions. [2025-03-13 22:16:15,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 262 transitions, 3727 flow [2025-03-13 22:16:15,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 3614 flow, removed 40 selfloop flow, removed 12 redundant places. [2025-03-13 22:16:15,867 INFO L231 Difference]: Finished difference. Result has 224 places, 210 transitions, 2657 flow [2025-03-13 22:16:15,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2657, PETRI_PLACES=224, PETRI_TRANSITIONS=210} [2025-03-13 22:16:15,868 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 141 predicate places. [2025-03-13 22:16:15,868 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 210 transitions, 2657 flow [2025-03-13 22:16:15,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:15,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:15,868 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:15,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-13 22:16:15,869 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:15,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:15,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1357399037, now seen corresponding path program 2 times [2025-03-13 22:16:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129707547] [2025-03-13 22:16:15,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:16:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:15,877 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-03-13 22:16:15,881 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-13 22:16:15,881 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:15,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:16,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129707547] [2025-03-13 22:16:16,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129707547] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:16,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:16,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:16,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317246414] [2025-03-13 22:16:16,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:16,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:16,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:16,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:16,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:16,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:16,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 210 transitions, 2657 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:16,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:16,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:16,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:16,746 INFO L124 PetriNetUnfolderBase]: 195/717 cut-off events. [2025-03-13 22:16:16,746 INFO L125 PetriNetUnfolderBase]: For 12780/12806 co-relation queries the response was YES. [2025-03-13 22:16:16,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 717 events. 195/717 cut-off events. For 12780/12806 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4182 event pairs, 16 based on Foata normal form. 13/726 useless extension candidates. Maximal degree in co-relation 4108. Up to 223 conditions per place. [2025-03-13 22:16:16,749 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2025-03-13 22:16:16,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 252 transitions, 3632 flow [2025-03-13 22:16:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-13 22:16:16,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-13 22:16:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2025-03-13 22:16:16,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2025-03-13 22:16:16,750 INFO L175 Difference]: Start difference. First operand has 224 places, 210 transitions, 2657 flow. Second operand 20 states and 1077 transitions. [2025-03-13 22:16:16,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 252 transitions, 3632 flow [2025-03-13 22:16:16,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 252 transitions, 3425 flow, removed 34 selfloop flow, removed 17 redundant places. [2025-03-13 22:16:16,785 INFO L231 Difference]: Finished difference. Result has 228 places, 198 transitions, 2431 flow [2025-03-13 22:16:16,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2512, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2431, PETRI_PLACES=228, PETRI_TRANSITIONS=198} [2025-03-13 22:16:16,785 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 145 predicate places. [2025-03-13 22:16:16,785 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 198 transitions, 2431 flow [2025-03-13 22:16:16,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:16,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:16,786 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:16:16,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-13 22:16:16,786 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-13 22:16:16,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:16,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1120277057, now seen corresponding path program 3 times [2025-03-13 22:16:16,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:16,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149316861] [2025-03-13 22:16:16,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:16,793 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-03-13 22:16:16,796 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-13 22:16:16,796 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:16,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:16:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149316861] [2025-03-13 22:16:16,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149316861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:16,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:16,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-13 22:16:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958873978] [2025-03-13 22:16:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-13 22:16:16,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:16,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-13 22:16:16,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-13 22:16:17,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-13 22:16:17,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 198 transitions, 2431 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:17,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:17,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-13 22:16:17,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:17,795 INFO L124 PetriNetUnfolderBase]: 155/602 cut-off events. [2025-03-13 22:16:17,795 INFO L125 PetriNetUnfolderBase]: For 10891/10917 co-relation queries the response was YES. [2025-03-13 22:16:17,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 602 events. 155/602 cut-off events. For 10891/10917 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3326 event pairs, 2 based on Foata normal form. 43/645 useless extension candidates. Maximal degree in co-relation 3326. Up to 159 conditions per place. [2025-03-13 22:16:17,798 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2025-03-13 22:16:17,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 260 transitions, 3520 flow [2025-03-13 22:16:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-13 22:16:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-13 22:16:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2025-03-13 22:16:17,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2025-03-13 22:16:17,799 INFO L175 Difference]: Start difference. First operand has 228 places, 198 transitions, 2431 flow. Second operand 24 states and 1282 transitions. [2025-03-13 22:16:17,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 260 transitions, 3520 flow [2025-03-13 22:16:17,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 260 transitions, 3255 flow, removed 47 selfloop flow, removed 22 redundant places. [2025-03-13 22:16:17,828 INFO L231 Difference]: Finished difference. Result has 214 places, 0 transitions, 0 flow [2025-03-13 22:16:17,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=214, PETRI_TRANSITIONS=0} [2025-03-13 22:16:17,829 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 131 predicate places. [2025-03-13 22:16:17,829 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 0 transitions, 0 flow [2025-03-13 22:16:17,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:17,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-03-13 22:16:17,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-13 22:16:17,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-03-13 22:16:17,831 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-03-13 22:16:17,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-13 22:16:17,831 INFO L422 BasicCegarLoop]: Path program histogram: [15, 3, 1, 1, 1, 1] [2025-03-13 22:16:17,835 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:16:17,835 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:16:17,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:16:17 BasicIcfg [2025-03-13 22:16:17,841 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:16:17,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:16:17,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:16:17,842 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:16:17,842 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:15:54" (3/4) ... [2025-03-13 22:16:17,843 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 22:16:17,845 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-13 22:16:17,847 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-13 22:16:17,847 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-13 22:16:17,847 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-13 22:16:17,899 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:16:17,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:16:17,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:16:17,901 INFO L158 Benchmark]: Toolchain (without parser) took 24473.81ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 111.8MB in the beginning and 112.4MB in the end (delta: -581.7kB). Peak memory consumption was 156.4MB. Max. memory is 16.1GB. [2025-03-13 22:16:17,901 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:16:17,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.49ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 84.2MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:16:17,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.22ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:16:17,903 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 80.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:16:17,903 INFO L158 Benchmark]: IcfgBuilder took 303.17ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 65.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:16:17,903 INFO L158 Benchmark]: TraceAbstraction took 23639.79ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 64.8MB in the beginning and 115.8MB in the end (delta: -50.9MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2025-03-13 22:16:17,903 INFO L158 Benchmark]: Witness Printer took 57.79ms. Allocated memory is still 302.0MB. Free memory was 115.8MB in the beginning and 112.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:16:17,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.49ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 84.2MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.22ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 80.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 303.17ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 65.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 23639.79ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 64.8MB in the beginning and 115.8MB in the end (delta: -50.9MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. * Witness Printer took 57.79ms. Allocated memory is still 302.0MB. Free memory was 115.8MB in the beginning and 112.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 99 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: 23.5s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7931 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6856 mSDsluCounter, 14553 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13923 mSDsCounter, 650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26580 IncrementalHoareTripleChecker+Invalid, 27230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 650 mSolverCounterUnsat, 630 mSDtfsCounter, 26580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 463 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2930occurred in iteration=18, InterpolantAutomatonStates: 313, 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, 5.9s InterpolantComputationTime, 1278 NumberOfCodeBlocks, 1260 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1256 ConstructedInterpolants, 0 QuantifiedInterpolants, 8729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 22:16:17,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE