./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:29:03,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:29:03,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:29:03,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:29:03,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:29:03,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:29:03,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:29:03,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:29:03,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:29:03,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:29:03,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:29:03,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:29:03,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:29:03,511 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:03,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:03,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:29:03,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:29:03,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:29:03,512 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 -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2025-04-30 10:29:03,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:29:03,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:29:03,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:29:03,737 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:29:03,737 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:29:03,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-04-30 10:29:04,969 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507653e90/be500174244941bdb0d6d2e5c5e2b927/FLAGb03e2673f [2025-04-30 10:29:05,238 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:29:05,239 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-04-30 10:29:05,248 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507653e90/be500174244941bdb0d6d2e5c5e2b927/FLAGb03e2673f [2025-04-30 10:29:06,019 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507653e90/be500174244941bdb0d6d2e5c5e2b927 [2025-04-30 10:29:06,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:29:06,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:29:06,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:06,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:29:06,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:29:06,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e3e109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06, skipping insertion in model container [2025-04-30 10:29:06,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:29:06,334 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:06,351 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:29:06,419 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:06,450 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:29:06,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06 WrapperNode [2025-04-30 10:29:06,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:06,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:06,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:29:06,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:29:06,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,490 INFO L138 Inliner]: procedures = 165, calls = 47, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 198 [2025-04-30 10:29:06,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:06,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:29:06,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:29:06,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:29:06,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:29:06,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:29:06,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:29:06,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:29:06,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (1/1) ... [2025-04-30 10:29:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:06,543 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) [2025-04-30 10:29:06,548 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 [2025-04-30 10:29:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:29:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:29:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:29:06,562 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:29:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:29:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:29:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:29:06,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:29:06,563 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:29:06,654 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:29:06,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:29:06,883 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:29:06,884 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:29:06,911 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:29:06,912 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:29:06,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:06 BoogieIcfgContainer [2025-04-30 10:29:06,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:29:06,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:29:06,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:29:06,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:29:06,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:29:06" (1/3) ... [2025-04-30 10:29:06,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afab18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:06, skipping insertion in model container [2025-04-30 10:29:06,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:06" (2/3) ... [2025-04-30 10:29:06,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afab18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:06, skipping insertion in model container [2025-04-30 10:29:06,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:06" (3/3) ... [2025-04-30 10:29:06,918 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-04-30 10:29:06,930 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:29:06,932 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i that has 2 procedures, 226 locations, 236 edges, 1 initial locations, 0 loop locations, and 9 error locations. [2025-04-30 10:29:06,933 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:29:07,005 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:29:07,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 237 transitions, 478 flow [2025-04-30 10:29:07,127 INFO L116 PetriNetUnfolderBase]: 11/240 cut-off events. [2025-04-30 10:29:07,130 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:07,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 240 events. 11/240 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 273 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2025-04-30 10:29:07,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 237 transitions, 478 flow [2025-04-30 10:29:07,142 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 235 transitions, 473 flow [2025-04-30 10:29:07,150 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:29:07,163 INFO L340 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;@21b7ecbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:29:07,163 INFO L341 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-04-30 10:29:07,175 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:29:07,178 INFO L116 PetriNetUnfolderBase]: 0/61 cut-off events. [2025-04-30 10:29:07,179 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:07,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:07,179 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] [2025-04-30 10:29:07,179 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:07,184 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2069921328, now seen corresponding path program 1 times [2025-04-30 10:29:07,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:07,190 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164896898] [2025-04-30 10:29:07,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:07,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:07,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-30 10:29:07,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-30 10:29:07,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:07,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:07,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:07,410 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164896898] [2025-04-30 10:29:07,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164896898] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:07,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:07,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370634568] [2025-04-30 10:29:07,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:07,420 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:07,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:07,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:07,472 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 237 [2025-04-30 10:29:07,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 235 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:07,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:07,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 237 [2025-04-30 10:29:07,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:07,705 INFO L116 PetriNetUnfolderBase]: 122/1316 cut-off events. [2025-04-30 10:29:07,705 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:07,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 1316 events. 122/1316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7799 event pairs, 87 based on Foata normal form. 112/1278 useless extension candidates. Maximal degree in co-relation 1541. Up to 236 conditions per place. [2025-04-30 10:29:07,715 INFO L140 encePairwiseOnDemand]: 221/237 looper letters, 30 selfloop transitions, 5 changer transitions 0/229 dead transitions. [2025-04-30 10:29:07,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 229 transitions, 531 flow [2025-04-30 10:29:07,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:07,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2025-04-30 10:29:07,729 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9156118143459916 [2025-04-30 10:29:07,732 INFO L175 Difference]: Start difference. First operand has 228 places, 235 transitions, 473 flow. Second operand 3 states and 651 transitions. [2025-04-30 10:29:07,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 229 transitions, 531 flow [2025-04-30 10:29:07,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 229 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:29:07,741 INFO L231 Difference]: Finished difference. Result has 225 places, 223 transitions, 478 flow [2025-04-30 10:29:07,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=225, PETRI_TRANSITIONS=223} [2025-04-30 10:29:07,747 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -3 predicate places. [2025-04-30 10:29:07,749 INFO L485 AbstractCegarLoop]: Abstraction has has 225 places, 223 transitions, 478 flow [2025-04-30 10:29:07,750 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:07,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:07,750 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] [2025-04-30 10:29:07,750 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:29:07,751 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:07,751 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 211532478, now seen corresponding path program 1 times [2025-04-30 10:29:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:07,752 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851143084] [2025-04-30 10:29:07,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:07,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-04-30 10:29:07,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-04-30 10:29:07,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:07,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:07,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:07,840 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851143084] [2025-04-30 10:29:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851143084] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:07,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051367806] [2025-04-30 10:29:07,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:07,841 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:07,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:07,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:07,853 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2025-04-30 10:29:07,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 223 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:07,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:07,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2025-04-30 10:29:07,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:08,020 INFO L116 PetriNetUnfolderBase]: 115/1372 cut-off events. [2025-04-30 10:29:08,021 INFO L117 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-04-30 10:29:08,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1372 events. 115/1372 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8265 event pairs, 71 based on Foata normal form. 0/1225 useless extension candidates. Maximal degree in co-relation 1664. Up to 207 conditions per place. [2025-04-30 10:29:08,028 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 28 selfloop transitions, 4 changer transitions 0/232 dead transitions. [2025-04-30 10:29:08,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 232 transitions, 560 flow [2025-04-30 10:29:08,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2025-04-30 10:29:08,031 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8945147679324894 [2025-04-30 10:29:08,031 INFO L175 Difference]: Start difference. First operand has 225 places, 223 transitions, 478 flow. Second operand 3 states and 636 transitions. [2025-04-30 10:29:08,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 232 transitions, 560 flow [2025-04-30 10:29:08,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 232 transitions, 550 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:08,037 INFO L231 Difference]: Finished difference. Result has 227 places, 226 transitions, 498 flow [2025-04-30 10:29:08,039 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=227, PETRI_TRANSITIONS=226} [2025-04-30 10:29:08,040 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -1 predicate places. [2025-04-30 10:29:08,040 INFO L485 AbstractCegarLoop]: Abstraction has has 227 places, 226 transitions, 498 flow [2025-04-30 10:29:08,041 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:08,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:08,041 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] [2025-04-30 10:29:08,042 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:29:08,042 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:08,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1938240668, now seen corresponding path program 1 times [2025-04-30 10:29:08,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:08,043 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910966513] [2025-04-30 10:29:08,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:08,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-30 10:29:08,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-30 10:29:08,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:08,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:08,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:08,119 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910966513] [2025-04-30 10:29:08,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910966513] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:08,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:08,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:08,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461504352] [2025-04-30 10:29:08,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:08,119 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:08,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:08,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:08,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:08,130 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 237 [2025-04-30 10:29:08,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 226 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:08,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:08,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 237 [2025-04-30 10:29:08,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:08,329 INFO L116 PetriNetUnfolderBase]: 122/2008 cut-off events. [2025-04-30 10:29:08,330 INFO L117 PetriNetUnfolderBase]: For 46/49 co-relation queries the response was YES. [2025-04-30 10:29:08,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 2008 events. 122/2008 cut-off events. For 46/49 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14340 event pairs, 26 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 2381. Up to 146 conditions per place. [2025-04-30 10:29:08,337 INFO L140 encePairwiseOnDemand]: 233/237 looper letters, 30 selfloop transitions, 4 changer transitions 0/240 dead transitions. [2025-04-30 10:29:08,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 240 transitions, 598 flow [2025-04-30 10:29:08,337 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 649 transitions. [2025-04-30 10:29:08,338 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9127988748241913 [2025-04-30 10:29:08,339 INFO L175 Difference]: Start difference. First operand has 227 places, 226 transitions, 498 flow. Second operand 3 states and 649 transitions. [2025-04-30 10:29:08,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 240 transitions, 598 flow [2025-04-30 10:29:08,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 240 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:08,343 INFO L231 Difference]: Finished difference. Result has 229 places, 228 transitions, 518 flow [2025-04-30 10:29:08,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=229, PETRI_TRANSITIONS=228} [2025-04-30 10:29:08,344 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2025-04-30 10:29:08,344 INFO L485 AbstractCegarLoop]: Abstraction has has 229 places, 228 transitions, 518 flow [2025-04-30 10:29:08,344 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:08,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:08,344 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, 1] [2025-04-30 10:29:08,344 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:29:08,344 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:08,345 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash -586780389, now seen corresponding path program 1 times [2025-04-30 10:29:08,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:08,345 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191016171] [2025-04-30 10:29:08,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:08,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:08,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-04-30 10:29:08,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-04-30 10:29:08,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:08,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:08,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:08,386 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191016171] [2025-04-30 10:29:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191016171] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:08,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216499341] [2025-04-30 10:29:08,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:08,386 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:08,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:08,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:08,401 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 237 [2025-04-30 10:29:08,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 228 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:08,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:08,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 237 [2025-04-30 10:29:08,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:08,719 INFO L116 PetriNetUnfolderBase]: 240/3005 cut-off events. [2025-04-30 10:29:08,720 INFO L117 PetriNetUnfolderBase]: For 25/28 co-relation queries the response was YES. [2025-04-30 10:29:08,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3692 conditions, 3005 events. 240/3005 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 25002 event pairs, 34 based on Foata normal form. 0/2707 useless extension candidates. Maximal degree in co-relation 3641. Up to 299 conditions per place. [2025-04-30 10:29:08,731 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 31 selfloop transitions, 4 changer transitions 0/243 dead transitions. [2025-04-30 10:29:08,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 243 transitions, 618 flow [2025-04-30 10:29:08,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2025-04-30 10:29:08,734 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9113924050632911 [2025-04-30 10:29:08,734 INFO L175 Difference]: Start difference. First operand has 229 places, 228 transitions, 518 flow. Second operand 3 states and 648 transitions. [2025-04-30 10:29:08,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 243 transitions, 618 flow [2025-04-30 10:29:08,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 243 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:08,742 INFO L231 Difference]: Finished difference. Result has 231 places, 231 transitions, 540 flow [2025-04-30 10:29:08,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=231, PETRI_TRANSITIONS=231} [2025-04-30 10:29:08,743 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 3 predicate places. [2025-04-30 10:29:08,743 INFO L485 AbstractCegarLoop]: Abstraction has has 231 places, 231 transitions, 540 flow [2025-04-30 10:29:08,744 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:08,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:08,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:08,744 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:29:08,744 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:08,745 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash -359842066, now seen corresponding path program 1 times [2025-04-30 10:29:08,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:08,745 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136071071] [2025-04-30 10:29:08,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:08,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-04-30 10:29:08,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-04-30 10:29:08,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:08,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:08,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:08,979 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136071071] [2025-04-30 10:29:08,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136071071] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:08,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:08,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-30 10:29:08,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400810866] [2025-04-30 10:29:08,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:08,980 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:29:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:08,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:29:08,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:29:09,035 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 237 [2025-04-30 10:29:09,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 231 transitions, 540 flow. Second operand has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 237 [2025-04-30 10:29:09,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:09,166 INFO L116 PetriNetUnfolderBase]: 40/1040 cut-off events. [2025-04-30 10:29:09,166 INFO L117 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-04-30 10:29:09,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 1040 events. 40/1040 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4984 event pairs, 23 based on Foata normal form. 8/973 useless extension candidates. Maximal degree in co-relation 1218. Up to 82 conditions per place. [2025-04-30 10:29:09,169 INFO L140 encePairwiseOnDemand]: 227/237 looper letters, 17 selfloop transitions, 10 changer transitions 1/229 dead transitions. [2025-04-30 10:29:09,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 229 transitions, 562 flow [2025-04-30 10:29:09,170 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:29:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:29:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1066 transitions. [2025-04-30 10:29:09,172 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8995780590717299 [2025-04-30 10:29:09,172 INFO L175 Difference]: Start difference. First operand has 231 places, 231 transitions, 540 flow. Second operand 5 states and 1066 transitions. [2025-04-30 10:29:09,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 229 transitions, 562 flow [2025-04-30 10:29:09,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 229 transitions, 532 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-04-30 10:29:09,176 INFO L231 Difference]: Finished difference. Result has 226 places, 222 transitions, 498 flow [2025-04-30 10:29:09,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=226, PETRI_TRANSITIONS=222} [2025-04-30 10:29:09,177 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -2 predicate places. [2025-04-30 10:29:09,177 INFO L485 AbstractCegarLoop]: Abstraction has has 226 places, 222 transitions, 498 flow [2025-04-30 10:29:09,178 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:09,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:09,178 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:29:09,178 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:09,178 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1761699075, now seen corresponding path program 1 times [2025-04-30 10:29:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:09,179 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035839399] [2025-04-30 10:29:09,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:09,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-04-30 10:29:09,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-04-30 10:29:09,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:09,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:09,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:09,246 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035839399] [2025-04-30 10:29:09,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035839399] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:09,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:09,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:09,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116981403] [2025-04-30 10:29:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:09,246 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:09,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:09,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:09,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:09,261 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 237 [2025-04-30 10:29:09,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 222 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 237 [2025-04-30 10:29:09,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:09,378 INFO L116 PetriNetUnfolderBase]: 66/1216 cut-off events. [2025-04-30 10:29:09,378 INFO L117 PetriNetUnfolderBase]: For 104/106 co-relation queries the response was YES. [2025-04-30 10:29:09,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1216 events. 66/1216 cut-off events. For 104/106 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6794 event pairs, 59 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1518. Up to 189 conditions per place. [2025-04-30 10:29:09,381 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 28 selfloop transitions, 3 changer transitions 0/223 dead transitions. [2025-04-30 10:29:09,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 223 transitions, 565 flow [2025-04-30 10:29:09,381 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:09,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2025-04-30 10:29:09,382 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8804500703234881 [2025-04-30 10:29:09,382 INFO L175 Difference]: Start difference. First operand has 226 places, 222 transitions, 498 flow. Second operand 3 states and 626 transitions. [2025-04-30 10:29:09,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 223 transitions, 565 flow [2025-04-30 10:29:09,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 223 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:09,386 INFO L231 Difference]: Finished difference. Result has 225 places, 221 transitions, 499 flow [2025-04-30 10:29:09,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=225, PETRI_TRANSITIONS=221} [2025-04-30 10:29:09,388 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -3 predicate places. [2025-04-30 10:29:09,388 INFO L485 AbstractCegarLoop]: Abstraction has has 225 places, 221 transitions, 499 flow [2025-04-30 10:29:09,389 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:09,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:09,389 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:29:09,389 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:09,390 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash 85735142, now seen corresponding path program 1 times [2025-04-30 10:29:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:09,390 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647937389] [2025-04-30 10:29:09,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:09,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:09,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-04-30 10:29:09,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-04-30 10:29:09,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:09,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:09,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:09,431 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647937389] [2025-04-30 10:29:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647937389] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:09,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:09,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624308630] [2025-04-30 10:29:09,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:09,432 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:09,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:09,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:09,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:09,443 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 237 [2025-04-30 10:29:09,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 221 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 237 [2025-04-30 10:29:09,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:09,546 INFO L116 PetriNetUnfolderBase]: 69/1218 cut-off events. [2025-04-30 10:29:09,546 INFO L117 PetriNetUnfolderBase]: For 114/118 co-relation queries the response was YES. [2025-04-30 10:29:09,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1600 conditions, 1218 events. 69/1218 cut-off events. For 114/118 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6801 event pairs, 60 based on Foata normal form. 0/1132 useless extension candidates. Maximal degree in co-relation 1547. Up to 193 conditions per place. [2025-04-30 10:29:09,549 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 28 selfloop transitions, 3 changer transitions 0/222 dead transitions. [2025-04-30 10:29:09,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 222 transitions, 566 flow [2025-04-30 10:29:09,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:09,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2025-04-30 10:29:09,551 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8804500703234881 [2025-04-30 10:29:09,551 INFO L175 Difference]: Start difference. First operand has 225 places, 221 transitions, 499 flow. Second operand 3 states and 626 transitions. [2025-04-30 10:29:09,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 222 transitions, 566 flow [2025-04-30 10:29:09,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 222 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:09,554 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 497 flow [2025-04-30 10:29:09,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2025-04-30 10:29:09,556 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -4 predicate places. [2025-04-30 10:29:09,557 INFO L485 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 497 flow [2025-04-30 10:29:09,557 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:09,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:09,557 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:29:09,558 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:09,559 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1634830210, now seen corresponding path program 1 times [2025-04-30 10:29:09,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:09,559 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86282882] [2025-04-30 10:29:09,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:09,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:09,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-04-30 10:29:09,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-04-30 10:29:09,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:09,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:09,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:09,608 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86282882] [2025-04-30 10:29:09,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86282882] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:09,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:09,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966301394] [2025-04-30 10:29:09,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:09,608 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:09,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:09,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:09,625 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 237 [2025-04-30 10:29:09,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 237 [2025-04-30 10:29:09,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:09,737 INFO L116 PetriNetUnfolderBase]: 112/1285 cut-off events. [2025-04-30 10:29:09,737 INFO L117 PetriNetUnfolderBase]: For 116/123 co-relation queries the response was YES. [2025-04-30 10:29:09,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 1285 events. 112/1285 cut-off events. For 116/123 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7258 event pairs, 82 based on Foata normal form. 0/1182 useless extension candidates. Maximal degree in co-relation 1717. Up to 254 conditions per place. [2025-04-30 10:29:09,740 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 29 selfloop transitions, 5 changer transitions 9/230 dead transitions. [2025-04-30 10:29:09,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 230 transitions, 603 flow [2025-04-30 10:29:09,741 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:09,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 633 transitions. [2025-04-30 10:29:09,742 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.890295358649789 [2025-04-30 10:29:09,742 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 497 flow. Second operand 3 states and 633 transitions. [2025-04-30 10:29:09,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 230 transitions, 603 flow [2025-04-30 10:29:09,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 230 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:09,745 INFO L231 Difference]: Finished difference. Result has 226 places, 217 transitions, 502 flow [2025-04-30 10:29:09,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=226, PETRI_TRANSITIONS=217} [2025-04-30 10:29:09,745 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -2 predicate places. [2025-04-30 10:29:09,745 INFO L485 AbstractCegarLoop]: Abstraction has has 226 places, 217 transitions, 502 flow [2025-04-30 10:29:09,746 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:09,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:09,746 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:29:09,746 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:09,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash -238349530, now seen corresponding path program 1 times [2025-04-30 10:29:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:09,747 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250013343] [2025-04-30 10:29:09,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:09,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:09,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-04-30 10:29:09,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-04-30 10:29:09,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:09,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:09,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:09,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250013343] [2025-04-30 10:29:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250013343] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055993708] [2025-04-30 10:29:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:09,789 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:09,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:09,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:09,809 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2025-04-30 10:29:09,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 217 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2025-04-30 10:29:09,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:09,904 INFO L116 PetriNetUnfolderBase]: 73/1011 cut-off events. [2025-04-30 10:29:09,905 INFO L117 PetriNetUnfolderBase]: For 111/114 co-relation queries the response was YES. [2025-04-30 10:29:09,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 1011 events. 73/1011 cut-off events. For 111/114 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4924 event pairs, 52 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 1366. Up to 172 conditions per place. [2025-04-30 10:29:09,907 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 28 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2025-04-30 10:29:09,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 224 transitions, 589 flow [2025-04-30 10:29:09,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2025-04-30 10:29:09,909 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8917018284106891 [2025-04-30 10:29:09,909 INFO L175 Difference]: Start difference. First operand has 226 places, 217 transitions, 502 flow. Second operand 3 states and 634 transitions. [2025-04-30 10:29:09,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 224 transitions, 589 flow [2025-04-30 10:29:09,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 224 transitions, 575 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:09,912 INFO L231 Difference]: Finished difference. Result has 228 places, 220 transitions, 526 flow [2025-04-30 10:29:09,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=228, PETRI_TRANSITIONS=220} [2025-04-30 10:29:09,913 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2025-04-30 10:29:09,913 INFO L485 AbstractCegarLoop]: Abstraction has has 228 places, 220 transitions, 526 flow [2025-04-30 10:29:09,913 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:09,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:09,914 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:29:09,914 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:09,914 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash 594234345, now seen corresponding path program 1 times [2025-04-30 10:29:09,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:09,914 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172948778] [2025-04-30 10:29:09,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:09,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-04-30 10:29:09,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-04-30 10:29:09,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:09,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:09,951 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172948778] [2025-04-30 10:29:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172948778] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:09,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:09,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:09,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616843136] [2025-04-30 10:29:09,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:09,952 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:09,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:09,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:09,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:09,964 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 237 [2025-04-30 10:29:09,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 220 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:09,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:09,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 237 [2025-04-30 10:29:09,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:10,059 INFO L116 PetriNetUnfolderBase]: 63/1035 cut-off events. [2025-04-30 10:29:10,059 INFO L117 PetriNetUnfolderBase]: For 198/203 co-relation queries the response was YES. [2025-04-30 10:29:10,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 1035 events. 63/1035 cut-off events. For 198/203 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5096 event pairs, 30 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1418. Up to 110 conditions per place. [2025-04-30 10:29:10,062 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 24 selfloop transitions, 3 changer transitions 12/232 dead transitions. [2025-04-30 10:29:10,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 232 transitions, 644 flow [2025-04-30 10:29:10,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2025-04-30 10:29:10,063 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2025-04-30 10:29:10,064 INFO L175 Difference]: Start difference. First operand has 228 places, 220 transitions, 526 flow. Second operand 3 states and 642 transitions. [2025-04-30 10:29:10,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 232 transitions, 644 flow [2025-04-30 10:29:10,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 232 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:10,067 INFO L231 Difference]: Finished difference. Result has 230 places, 218 transitions, 530 flow [2025-04-30 10:29:10,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=230, PETRI_TRANSITIONS=218} [2025-04-30 10:29:10,069 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 2 predicate places. [2025-04-30 10:29:10,069 INFO L485 AbstractCegarLoop]: Abstraction has has 230 places, 218 transitions, 530 flow [2025-04-30 10:29:10,070 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:10,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:10,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:10,070 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-30 10:29:10,070 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-04-30 10:29:10,071 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash -248028292, now seen corresponding path program 1 times [2025-04-30 10:29:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:10,071 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179362186] [2025-04-30 10:29:10,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:10,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-04-30 10:29:10,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-04-30 10:29:10,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:10,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:10,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:10,527 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179362186] [2025-04-30 10:29:10,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179362186] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:10,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:10,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-30 10:29:10,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95835645] [2025-04-30 10:29:10,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:10,529 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-30 10:29:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:10,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-30 10:29:10,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:29:10,628 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 237 [2025-04-30 10:29:10,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 218 transitions, 530 flow. Second operand has 7 states, 7 states have (on average 208.14285714285714) internal successors, (1457), 7 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:10,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:10,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 237 [2025-04-30 10:29:10,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:10,725 INFO L116 PetriNetUnfolderBase]: 16/563 cut-off events. [2025-04-30 10:29:10,725 INFO L117 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-04-30 10:29:10,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 563 events. 16/563 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1655 event pairs, 2 based on Foata normal form. 6/540 useless extension candidates. Maximal degree in co-relation 681. Up to 45 conditions per place. [2025-04-30 10:29:10,726 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 0 selfloop transitions, 0 changer transitions 209/209 dead transitions. [2025-04-30 10:29:10,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 209 transitions, 543 flow [2025-04-30 10:29:10,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:29:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:29:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2025-04-30 10:29:10,729 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8867791842475387 [2025-04-30 10:29:10,729 INFO L175 Difference]: Start difference. First operand has 230 places, 218 transitions, 530 flow. Second operand 6 states and 1261 transitions. [2025-04-30 10:29:10,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 209 transitions, 543 flow [2025-04-30 10:29:10,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 209 transitions, 502 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-04-30 10:29:10,731 INFO L231 Difference]: Finished difference. Result has 217 places, 0 transitions, 0 flow [2025-04-30 10:29:10,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=217, PETRI_TRANSITIONS=0} [2025-04-30 10:29:10,731 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -11 predicate places. [2025-04-30 10:29:10,731 INFO L485 AbstractCegarLoop]: Abstraction has has 217 places, 0 transitions, 0 flow [2025-04-30 10:29:10,732 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 208.14285714285714) internal successors, (1457), 7 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2025-04-30 10:29:10,734 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2025-04-30 10:29:10,735 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2025-04-30 10:29:10,735 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2025-04-30 10:29:10,735 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-30 10:29:10,735 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:29:10,738 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:29:10,738 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:29:10,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:29:10 BasicIcfg [2025-04-30 10:29:10,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:29:10,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:29:10,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:29:10,742 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:29:10,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:06" (3/4) ... [2025-04-30 10:29:10,744 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:29:10,746 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:29:10,748 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-04-30 10:29:10,748 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:29:10,748 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:29:10,748 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:29:10,801 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:29:10,802 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:29:10,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:29:10,803 INFO L158 Benchmark]: Toolchain (without parser) took 4780.48ms. Allocated memory was 142.6MB in the beginning and 260.0MB in the end (delta: 117.4MB). Free memory was 110.1MB in the beginning and 207.4MB in the end (delta: -97.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2025-04-30 10:29:10,803 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:10,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.09ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 86.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:29:10,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 83.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:10,804 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:10,805 INFO L158 Benchmark]: RCFGBuilder took 395.85ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 58.7MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:29:10,805 INFO L158 Benchmark]: TraceAbstraction took 3828.07ms. Allocated memory was 142.6MB in the beginning and 260.0MB in the end (delta: 117.4MB). Free memory was 57.7MB in the beginning and 212.9MB in the end (delta: -155.2MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2025-04-30 10:29:10,805 INFO L158 Benchmark]: Witness Printer took 59.66ms. Allocated memory is still 260.0MB. Free memory was 212.9MB in the beginning and 207.4MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:10,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.09ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 86.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 83.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 395.85ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 58.7MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3828.07ms. Allocated memory was 142.6MB in the beginning and 260.0MB in the end (delta: 117.4MB). Free memory was 57.7MB in the beginning and 212.9MB in the end (delta: -155.2MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. * Witness Printer took 59.66ms. Allocated memory is still 260.0MB. Free memory was 212.9MB in the beginning and 207.4MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: 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, 332 locations, 351 edges, 14 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: 3.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 442 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 810 IncrementalHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 34 mSDtfsCounter, 810 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 985 NumberOfCodeBlocks, 985 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 2337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:29:10,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE