./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.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/04-mutex_10-ptrmunge_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:26:05,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:26:05,580 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:26:05,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:26:05,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:26:05,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:26:05,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:26:05,608 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:26:05,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:26:05,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:26:05,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:26:05,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:26:05,609 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:26:05,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:26:05,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:26:05,610 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:05,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:05,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:05,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:26:05,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:26:05,611 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 -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2025-04-30 10:26:05,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:26:05,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:26:05,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:26:05,854 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:26:05,854 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:26:05,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-04-30 10:26:07,133 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a51a77/08674f9ea1f2411d842f7c4f67d4d1b5/FLAG937d2b837 [2025-04-30 10:26:07,370 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:26:07,370 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-04-30 10:26:07,383 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a51a77/08674f9ea1f2411d842f7c4f67d4d1b5/FLAG937d2b837 [2025-04-30 10:26:08,285 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a51a77/08674f9ea1f2411d842f7c4f67d4d1b5 [2025-04-30 10:26:08,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:08,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:08,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:08,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:08,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:08,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6103ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08, skipping insertion in model container [2025-04-30 10:26:08,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:08,584 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:08,595 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:08,645 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:08,683 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:08,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08 WrapperNode [2025-04-30 10:26:08,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:08,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:08,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:08,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:08,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,729 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-04-30 10:26:08,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:08,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:08,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:08,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:08,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,750 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:08,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:08,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:08,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:08,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (1/1) ... [2025-04-30 10:26:08,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:08,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:08,789 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 10:26:08,794 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 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-30 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-30 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:08,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:08,807 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 10:26:08,904 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:08,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:09,106 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:09,106 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:09,118 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:09,118 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:26:09,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:09 BoogieIcfgContainer [2025-04-30 10:26:09,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:09,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:09,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:09,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:09,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:08" (1/3) ... [2025-04-30 10:26:09,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f61434e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:09, skipping insertion in model container [2025-04-30 10:26:09,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:08" (2/3) ... [2025-04-30 10:26:09,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f61434e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:09, skipping insertion in model container [2025-04-30 10:26:09,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:09" (3/3) ... [2025-04-30 10:26:09,125 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2025-04-30 10:26:09,134 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:09,136 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 95 locations, 93 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-30 10:26:09,136 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:09,193 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:26:09,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2025-04-30 10:26:09,250 INFO L116 PetriNetUnfolderBase]: 0/93 cut-off events. [2025-04-30 10:26:09,252 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:09,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-30 10:26:09,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2025-04-30 10:26:09,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2025-04-30 10:26:09,262 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:09,273 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;@7f326262, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:09,273 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:26:09,290 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:09,290 INFO L116 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-04-30 10:26:09,290 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:09,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:09,291 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] [2025-04-30 10:26:09,291 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:09,295 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2025-04-30 10:26:09,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:09,300 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847396299] [2025-04-30 10:26:09,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:09,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:09,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-04-30 10:26:09,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-04-30 10:26:09,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:09,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:10,030 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 10:26:10,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:10,030 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847396299] [2025-04-30 10:26:10,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847396299] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:10,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:10,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:10,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352099781] [2025-04-30 10:26:10,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:10,038 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:10,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:10,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:10,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:10,207 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-04-30 10:26:10,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 10:26:10,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:10,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-04-30 10:26:10,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:10,412 INFO L116 PetriNetUnfolderBase]: 114/471 cut-off events. [2025-04-30 10:26:10,412 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:10,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2025-04-30 10:26:10,418 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2025-04-30 10:26:10,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2025-04-30 10:26:10,420 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-04-30 10:26:10,431 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-04-30 10:26:10,432 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2025-04-30 10:26:10,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2025-04-30 10:26:10,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:10,439 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2025-04-30 10:26:10,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2025-04-30 10:26:10,445 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2025-04-30 10:26:10,445 INFO L485 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2025-04-30 10:26:10,446 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 10:26:10,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:10,446 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] [2025-04-30 10:26:10,447 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:10,447 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:10,448 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2025-04-30 10:26:10,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:10,449 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867231056] [2025-04-30 10:26:10,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:10,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-30 10:26:10,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-30 10:26:10,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:10,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:10,689 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 10:26:10,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:10,690 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867231056] [2025-04-30 10:26:10,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867231056] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:10,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:10,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:10,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327256380] [2025-04-30 10:26:10,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:10,691 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:10,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:10,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:10,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:10,792 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-04-30 10:26:10,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 10:26:10,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:10,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-04-30 10:26:10,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:10,956 INFO L116 PetriNetUnfolderBase]: 152/588 cut-off events. [2025-04-30 10:26:10,957 INFO L117 PetriNetUnfolderBase]: For 135/154 co-relation queries the response was YES. [2025-04-30 10:26:10,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 135/154 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3331 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2025-04-30 10:26:10,960 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2025-04-30 10:26:10,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2025-04-30 10:26:10,961 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-04-30 10:26:10,962 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-04-30 10:26:10,962 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2025-04-30 10:26:10,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2025-04-30 10:26:10,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:10,966 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2025-04-30 10:26:10,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2025-04-30 10:26:10,966 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2025-04-30 10:26:10,967 INFO L485 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2025-04-30 10:26:10,967 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 10:26:10,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:10,967 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] [2025-04-30 10:26:10,967 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:26:10,967 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:10,968 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:10,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2025-04-30 10:26:10,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:10,968 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600693239] [2025-04-30 10:26:10,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:10,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:10,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-30 10:26:10,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-30 10:26:10,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:10,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:11,209 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 10:26:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:11,210 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600693239] [2025-04-30 10:26:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600693239] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:11,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:11,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:11,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175667497] [2025-04-30 10:26:11,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:11,210 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:11,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:11,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:11,336 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-04-30 10:26:11,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 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 10:26:11,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:11,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-04-30 10:26:11,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:11,545 INFO L116 PetriNetUnfolderBase]: 292/943 cut-off events. [2025-04-30 10:26:11,546 INFO L117 PetriNetUnfolderBase]: For 585/605 co-relation queries the response was YES. [2025-04-30 10:26:11,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 585/605 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5757 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2025-04-30 10:26:11,552 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2025-04-30 10:26:11,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2025-04-30 10:26:11,552 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-04-30 10:26:11,554 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-04-30 10:26:11,554 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2025-04-30 10:26:11,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2025-04-30 10:26:11,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:11,562 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2025-04-30 10:26:11,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2025-04-30 10:26:11,563 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2025-04-30 10:26:11,563 INFO L485 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2025-04-30 10:26:11,564 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 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 10:26:11,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:11,564 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] [2025-04-30 10:26:11,564 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:11,564 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:11,565 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2025-04-30 10:26:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:11,565 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144538612] [2025-04-30 10:26:11,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:11,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-30 10:26:11,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-30 10:26:11,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:11,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:11,785 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 10:26:11,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:11,785 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144538612] [2025-04-30 10:26:11,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144538612] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:11,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:11,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:11,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320688685] [2025-04-30 10:26:11,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:11,785 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:11,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:11,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:11,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:11,873 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-04-30 10:26:11,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 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 10:26:11,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:11,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-04-30 10:26:11,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:12,038 INFO L116 PetriNetUnfolderBase]: 396/1208 cut-off events. [2025-04-30 10:26:12,038 INFO L117 PetriNetUnfolderBase]: For 1620/1661 co-relation queries the response was YES. [2025-04-30 10:26:12,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1620/1661 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7745 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2025-04-30 10:26:12,045 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2025-04-30 10:26:12,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2025-04-30 10:26:12,046 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-04-30 10:26:12,047 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-04-30 10:26:12,047 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2025-04-30 10:26:12,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2025-04-30 10:26:12,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:12,060 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2025-04-30 10:26:12,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2025-04-30 10:26:12,062 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2025-04-30 10:26:12,062 INFO L485 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2025-04-30 10:26:12,063 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 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 10:26:12,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:12,063 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] [2025-04-30 10:26:12,063 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:26:12,063 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:12,064 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2025-04-30 10:26:12,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:12,065 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330048698] [2025-04-30 10:26:12,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:12,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:12,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:12,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:12,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:12,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:12,464 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 10:26:12,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:12,465 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330048698] [2025-04-30 10:26:12,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330048698] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:12,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:12,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:12,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027037698] [2025-04-30 10:26:12,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:12,466 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:12,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:12,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:12,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:12,939 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:12,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:12,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:12,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:12,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:13,669 INFO L116 PetriNetUnfolderBase]: 799/2301 cut-off events. [2025-04-30 10:26:13,669 INFO L117 PetriNetUnfolderBase]: For 5028/5130 co-relation queries the response was YES. [2025-04-30 10:26:13,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 5028/5130 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16805 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2025-04-30 10:26:13,683 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2025-04-30 10:26:13,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2025-04-30 10:26:13,684 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:13,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:13,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2025-04-30 10:26:13,686 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2025-04-30 10:26:13,686 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2025-04-30 10:26:13,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2025-04-30 10:26:13,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:13,717 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2025-04-30 10:26:13,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2025-04-30 10:26:13,719 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2025-04-30 10:26:13,719 INFO L485 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2025-04-30 10:26:13,720 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:13,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:13,720 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] [2025-04-30 10:26:13,721 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:26:13,722 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:13,722 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash 68067359, now seen corresponding path program 2 times [2025-04-30 10:26:13,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:13,724 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997715074] [2025-04-30 10:26:13,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:13,737 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:13,744 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:13,744 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:13,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:14,149 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 10:26:14,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:14,150 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997715074] [2025-04-30 10:26:14,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997715074] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:14,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:14,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785839911] [2025-04-30 10:26:14,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:14,151 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:14,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:14,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:14,525 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:14,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:14,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:14,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:14,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:15,385 INFO L116 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2025-04-30 10:26:15,386 INFO L117 PetriNetUnfolderBase]: For 11877/12114 co-relation queries the response was YES. [2025-04-30 10:26:15,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11877/12114 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 28032 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2025-04-30 10:26:15,409 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2025-04-30 10:26:15,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2025-04-30 10:26:15,410 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-30 10:26:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-04-30 10:26:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2025-04-30 10:26:15,412 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2025-04-30 10:26:15,412 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2025-04-30 10:26:15,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2025-04-30 10:26:15,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2025-04-30 10:26:15,463 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2025-04-30 10:26:15,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2025-04-30 10:26:15,464 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2025-04-30 10:26:15,464 INFO L485 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2025-04-30 10:26:15,464 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:15,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:15,464 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] [2025-04-30 10:26:15,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:26:15,464 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:15,465 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2025-04-30 10:26:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:15,465 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253921654] [2025-04-30 10:26:15,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:26:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:15,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:15,486 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:15,489 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-30 10:26:15,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:15,899 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 10:26:15,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:15,900 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253921654] [2025-04-30 10:26:15,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253921654] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:15,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:15,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:15,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269053076] [2025-04-30 10:26:15,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:15,900 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:15,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:15,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:15,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:16,239 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:16,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:16,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:16,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:16,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:16,950 INFO L116 PetriNetUnfolderBase]: 1248/3490 cut-off events. [2025-04-30 10:26:16,951 INFO L117 PetriNetUnfolderBase]: For 17327/17713 co-relation queries the response was YES. [2025-04-30 10:26:16,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14748 conditions, 3490 events. 1248/3490 cut-off events. For 17327/17713 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28201 event pairs, 79 based on Foata normal form. 128/3586 useless extension candidates. Maximal degree in co-relation 14669. Up to 1525 conditions per place. [2025-04-30 10:26:16,972 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2025-04-30 10:26:16,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2025-04-30 10:26:16,972 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-30 10:26:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-30 10:26:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2025-04-30 10:26:16,974 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2025-04-30 10:26:16,974 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2025-04-30 10:26:16,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2025-04-30 10:26:17,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-04-30 10:26:17,034 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2025-04-30 10:26:17,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2025-04-30 10:26:17,035 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2025-04-30 10:26:17,035 INFO L485 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2025-04-30 10:26:17,036 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:17,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:17,036 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] [2025-04-30 10:26:17,036 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:26:17,036 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:17,036 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -753274283, now seen corresponding path program 4 times [2025-04-30 10:26:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:17,036 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664535051] [2025-04-30 10:26:17,036 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:26:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:17,045 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-04-30 10:26:17,049 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-04-30 10:26:17,050 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:26:17,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:17,320 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 10:26:17,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:17,321 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664535051] [2025-04-30 10:26:17,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664535051] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:17,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:17,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:17,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413112915] [2025-04-30 10:26:17,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:17,321 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:17,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:17,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:17,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:17,771 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:17,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:17,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:17,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:17,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:18,760 INFO L116 PetriNetUnfolderBase]: 1570/4379 cut-off events. [2025-04-30 10:26:18,760 INFO L117 PetriNetUnfolderBase]: For 27563/28038 co-relation queries the response was YES. [2025-04-30 10:26:18,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19533 conditions, 4379 events. 1570/4379 cut-off events. For 27563/28038 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 37287 event pairs, 128 based on Foata normal form. 155/4502 useless extension candidates. Maximal degree in co-relation 19452. Up to 813 conditions per place. [2025-04-30 10:26:18,790 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2025-04-30 10:26:18,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2025-04-30 10:26:18,791 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-30 10:26:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-04-30 10:26:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2025-04-30 10:26:18,793 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2025-04-30 10:26:18,793 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2025-04-30 10:26:18,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2025-04-30 10:26:18,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-04-30 10:26:18,879 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2025-04-30 10:26:18,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2025-04-30 10:26:18,880 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2025-04-30 10:26:18,880 INFO L485 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2025-04-30 10:26:18,880 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:18,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:18,881 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] [2025-04-30 10:26:18,881 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:26:18,881 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:18,881 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash -264731279, now seen corresponding path program 5 times [2025-04-30 10:26:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:18,881 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907443868] [2025-04-30 10:26:18,881 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-30 10:26:18,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:18,888 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:18,891 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:18,892 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:18,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:19,164 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 10:26:19,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:19,165 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907443868] [2025-04-30 10:26:19,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907443868] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:19,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:19,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496871263] [2025-04-30 10:26:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:19,166 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:19,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:19,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:19,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:19,518 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:19,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:19,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:19,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:19,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:20,447 INFO L116 PetriNetUnfolderBase]: 1612/4479 cut-off events. [2025-04-30 10:26:20,447 INFO L117 PetriNetUnfolderBase]: For 38568/39173 co-relation queries the response was YES. [2025-04-30 10:26:20,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21352 conditions, 4479 events. 1612/4479 cut-off events. For 38568/39173 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 38351 event pairs, 149 based on Foata normal form. 213/4656 useless extension candidates. Maximal degree in co-relation 21261. Up to 1372 conditions per place. [2025-04-30 10:26:20,473 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 345 selfloop transitions, 186 changer transitions 33/646 dead transitions. [2025-04-30 10:26:20,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 646 transitions, 9551 flow [2025-04-30 10:26:20,475 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2025-04-30 10:26:20,476 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2025-04-30 10:26:20,476 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 15 states and 1075 transitions. [2025-04-30 10:26:20,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 646 transitions, 9551 flow [2025-04-30 10:26:20,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 646 transitions, 9279 flow, removed 88 selfloop flow, removed 7 redundant places. [2025-04-30 10:26:20,599 INFO L231 Difference]: Finished difference. Result has 215 places, 469 transitions, 7256 flow [2025-04-30 10:26:20,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7256, PETRI_PLACES=215, PETRI_TRANSITIONS=469} [2025-04-30 10:26:20,600 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 123 predicate places. [2025-04-30 10:26:20,601 INFO L485 AbstractCegarLoop]: Abstraction has has 215 places, 469 transitions, 7256 flow [2025-04-30 10:26:20,601 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:20,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:20,601 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] [2025-04-30 10:26:20,601 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:26:20,602 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:20,602 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:20,602 INFO L85 PathProgramCache]: Analyzing trace with hash -442993417, now seen corresponding path program 1 times [2025-04-30 10:26:20,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:20,602 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853366768] [2025-04-30 10:26:20,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:20,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:20,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:20,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:20,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:20,849 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 10:26:20,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:20,850 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853366768] [2025-04-30 10:26:20,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853366768] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:20,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:20,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:20,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113739571] [2025-04-30 10:26:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:20,851 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:20,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:20,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:21,210 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:21,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 469 transitions, 7256 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:21,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:21,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:21,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:22,369 INFO L116 PetriNetUnfolderBase]: 2027/5329 cut-off events. [2025-04-30 10:26:22,369 INFO L117 PetriNetUnfolderBase]: For 49286/49555 co-relation queries the response was YES. [2025-04-30 10:26:22,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26534 conditions, 5329 events. 2027/5329 cut-off events. For 49286/49555 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 45241 event pairs, 298 based on Foata normal form. 63/5351 useless extension candidates. Maximal degree in co-relation 26438. Up to 1419 conditions per place. [2025-04-30 10:26:22,402 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 526 selfloop transitions, 164 changer transitions 63/818 dead transitions. [2025-04-30 10:26:22,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 818 transitions, 12099 flow [2025-04-30 10:26:22,403 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-30 10:26:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-04-30 10:26:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2025-04-30 10:26:22,405 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2025-04-30 10:26:22,405 INFO L175 Difference]: Start difference. First operand has 215 places, 469 transitions, 7256 flow. Second operand 14 states and 995 transitions. [2025-04-30 10:26:22,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 818 transitions, 12099 flow [2025-04-30 10:26:22,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 818 transitions, 11828 flow, removed 41 selfloop flow, removed 10 redundant places. [2025-04-30 10:26:22,582 INFO L231 Difference]: Finished difference. Result has 226 places, 536 transitions, 8544 flow [2025-04-30 10:26:22,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=7046, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8544, PETRI_PLACES=226, PETRI_TRANSITIONS=536} [2025-04-30 10:26:22,583 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 134 predicate places. [2025-04-30 10:26:22,583 INFO L485 AbstractCegarLoop]: Abstraction has has 226 places, 536 transitions, 8544 flow [2025-04-30 10:26:22,583 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:22,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:22,583 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] [2025-04-30 10:26:22,584 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-30 10:26:22,584 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:22,584 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1621183561, now seen corresponding path program 6 times [2025-04-30 10:26:22,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:22,584 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920205521] [2025-04-30 10:26:22,584 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-30 10:26:22,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:22,594 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:22,596 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:22,597 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-30 10:26:22,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:22,828 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 10:26:22,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:22,829 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920205521] [2025-04-30 10:26:22,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920205521] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:22,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:22,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:22,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714002412] [2025-04-30 10:26:22,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:22,830 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:22,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:22,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:23,239 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:23,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 536 transitions, 8544 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:23,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:23,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:23,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:24,212 INFO L116 PetriNetUnfolderBase]: 1652/4638 cut-off events. [2025-04-30 10:26:24,212 INFO L117 PetriNetUnfolderBase]: For 53482/54278 co-relation queries the response was YES. [2025-04-30 10:26:24,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24717 conditions, 4638 events. 1652/4638 cut-off events. For 53482/54278 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 40144 event pairs, 151 based on Foata normal form. 242/4852 useless extension candidates. Maximal degree in co-relation 24614. Up to 1398 conditions per place. [2025-04-30 10:26:24,234 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 414 selfloop transitions, 214 changer transitions 27/743 dead transitions. [2025-04-30 10:26:24,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 743 transitions, 12468 flow [2025-04-30 10:26:24,235 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2025-04-30 10:26:24,236 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2025-04-30 10:26:24,236 INFO L175 Difference]: Start difference. First operand has 226 places, 536 transitions, 8544 flow. Second operand 15 states and 1076 transitions. [2025-04-30 10:26:24,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 743 transitions, 12468 flow [2025-04-30 10:26:24,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 743 transitions, 12378 flow, removed 39 selfloop flow, removed 3 redundant places. [2025-04-30 10:26:24,399 INFO L231 Difference]: Finished difference. Result has 243 places, 579 transitions, 10337 flow [2025-04-30 10:26:24,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8472, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10337, PETRI_PLACES=243, PETRI_TRANSITIONS=579} [2025-04-30 10:26:24,400 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 151 predicate places. [2025-04-30 10:26:24,400 INFO L485 AbstractCegarLoop]: Abstraction has has 243 places, 579 transitions, 10337 flow [2025-04-30 10:26:24,400 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:24,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:24,400 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] [2025-04-30 10:26:24,400 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-30 10:26:24,400 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:24,401 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1390840927, now seen corresponding path program 2 times [2025-04-30 10:26:24,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:24,401 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911434856] [2025-04-30 10:26:24,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:24,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:24,406 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:24,408 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:24,408 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:24,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:24,602 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 10:26:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:24,602 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911434856] [2025-04-30 10:26:24,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911434856] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:24,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:24,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042855094] [2025-04-30 10:26:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:24,603 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:24,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:24,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:24,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:24,945 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:24,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 579 transitions, 10337 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:24,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:24,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:24,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:26,282 INFO L116 PetriNetUnfolderBase]: 2113/5596 cut-off events. [2025-04-30 10:26:26,282 INFO L117 PetriNetUnfolderBase]: For 72003/72311 co-relation queries the response was YES. [2025-04-30 10:26:26,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31306 conditions, 5596 events. 2113/5596 cut-off events. For 72003/72311 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 48332 event pairs, 252 based on Foata normal form. 101/5653 useless extension candidates. Maximal degree in co-relation 31196. Up to 1548 conditions per place. [2025-04-30 10:26:26,325 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 559 selfloop transitions, 203 changer transitions 54/884 dead transitions. [2025-04-30 10:26:26,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 884 transitions, 15048 flow [2025-04-30 10:26:26,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1053 transitions. [2025-04-30 10:26:26,327 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7468085106382979 [2025-04-30 10:26:26,327 INFO L175 Difference]: Start difference. First operand has 243 places, 579 transitions, 10337 flow. Second operand 15 states and 1053 transitions. [2025-04-30 10:26:26,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 884 transitions, 15048 flow [2025-04-30 10:26:26,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 884 transitions, 14732 flow, removed 78 selfloop flow, removed 9 redundant places. [2025-04-30 10:26:26,642 INFO L231 Difference]: Finished difference. Result has 254 places, 598 transitions, 11045 flow [2025-04-30 10:26:26,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=10087, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11045, PETRI_PLACES=254, PETRI_TRANSITIONS=598} [2025-04-30 10:26:26,643 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2025-04-30 10:26:26,643 INFO L485 AbstractCegarLoop]: Abstraction has has 254 places, 598 transitions, 11045 flow [2025-04-30 10:26:26,643 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:26,643 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:26,643 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] [2025-04-30 10:26:26,643 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-30 10:26:26,644 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:26,644 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:26,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1291998511, now seen corresponding path program 7 times [2025-04-30 10:26:26,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:26,644 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277784689] [2025-04-30 10:26:26,644 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-30 10:26:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:26,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:26,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:26,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:26,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:26,897 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 10:26:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:26,897 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277784689] [2025-04-30 10:26:26,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277784689] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:26,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:26,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382221046] [2025-04-30 10:26:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:26,898 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:26,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:26,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:26,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:27,258 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:27,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 598 transitions, 11045 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:27,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:27,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:27,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:28,360 INFO L116 PetriNetUnfolderBase]: 1751/4936 cut-off events. [2025-04-30 10:26:28,360 INFO L117 PetriNetUnfolderBase]: For 78975/80046 co-relation queries the response was YES. [2025-04-30 10:26:28,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29352 conditions, 4936 events. 1751/4936 cut-off events. For 78975/80046 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 43494 event pairs, 161 based on Foata normal form. 302/5208 useless extension candidates. Maximal degree in co-relation 29237. Up to 1469 conditions per place. [2025-04-30 10:26:28,396 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 456 selfloop transitions, 244 changer transitions 23/814 dead transitions. [2025-04-30 10:26:28,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 814 transitions, 15558 flow [2025-04-30 10:26:28,399 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:28,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2025-04-30 10:26:28,400 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2025-04-30 10:26:28,400 INFO L175 Difference]: Start difference. First operand has 254 places, 598 transitions, 11045 flow. Second operand 15 states and 1075 transitions. [2025-04-30 10:26:28,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 814 transitions, 15558 flow [2025-04-30 10:26:28,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 814 transitions, 15361 flow, removed 8 selfloop flow, removed 10 redundant places. [2025-04-30 10:26:28,671 INFO L231 Difference]: Finished difference. Result has 266 places, 648 transitions, 13230 flow [2025-04-30 10:26:28,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=10878, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13230, PETRI_PLACES=266, PETRI_TRANSITIONS=648} [2025-04-30 10:26:28,672 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 174 predicate places. [2025-04-30 10:26:28,672 INFO L485 AbstractCegarLoop]: Abstraction has has 266 places, 648 transitions, 13230 flow [2025-04-30 10:26:28,672 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:28,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:28,672 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] [2025-04-30 10:26:28,672 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-30 10:26:28,672 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:28,673 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1079218491, now seen corresponding path program 3 times [2025-04-30 10:26:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:28,673 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130820221] [2025-04-30 10:26:28,673 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:26:28,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:28,678 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:28,681 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:28,681 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-30 10:26:28,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:28,866 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 10:26:28,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:28,866 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130820221] [2025-04-30 10:26:28,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130820221] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:28,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:28,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:28,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261386864] [2025-04-30 10:26:28,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:28,867 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:28,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:28,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:28,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:29,154 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:29,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 648 transitions, 13230 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:29,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:29,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:29,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:30,626 INFO L116 PetriNetUnfolderBase]: 2272/6041 cut-off events. [2025-04-30 10:26:30,626 INFO L117 PetriNetUnfolderBase]: For 103408/103759 co-relation queries the response was YES. [2025-04-30 10:26:30,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37104 conditions, 6041 events. 2272/6041 cut-off events. For 103408/103759 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 53137 event pairs, 347 based on Foata normal form. 116/6116 useless extension candidates. Maximal degree in co-relation 36983. Up to 1721 conditions per place. [2025-04-30 10:26:30,674 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 628 selfloop transitions, 254 changer transitions 62/1014 dead transitions. [2025-04-30 10:26:30,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1014 transitions, 19809 flow [2025-04-30 10:26:30,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1056 transitions. [2025-04-30 10:26:30,677 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7489361702127659 [2025-04-30 10:26:30,677 INFO L175 Difference]: Start difference. First operand has 266 places, 648 transitions, 13230 flow. Second operand 15 states and 1056 transitions. [2025-04-30 10:26:30,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1014 transitions, 19809 flow [2025-04-30 10:26:31,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1014 transitions, 19474 flow, removed 103 selfloop flow, removed 9 redundant places. [2025-04-30 10:26:31,123 INFO L231 Difference]: Finished difference. Result has 278 places, 693 transitions, 14741 flow [2025-04-30 10:26:31,124 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12971, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14741, PETRI_PLACES=278, PETRI_TRANSITIONS=693} [2025-04-30 10:26:31,124 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 186 predicate places. [2025-04-30 10:26:31,124 INFO L485 AbstractCegarLoop]: Abstraction has has 278 places, 693 transitions, 14741 flow [2025-04-30 10:26:31,124 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:31,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:31,125 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] [2025-04-30 10:26:31,125 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-30 10:26:31,125 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:31,125 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1999224589, now seen corresponding path program 8 times [2025-04-30 10:26:31,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:31,125 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805321129] [2025-04-30 10:26:31,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:31,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:31,132 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:31,136 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:31,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:31,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:31,349 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 10:26:31,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:31,350 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805321129] [2025-04-30 10:26:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805321129] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025536119] [2025-04-30 10:26:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:31,350 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:31,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:31,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:31,658 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:31,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 693 transitions, 14741 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:31,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:31,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:31,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:32,910 INFO L116 PetriNetUnfolderBase]: 1771/5116 cut-off events. [2025-04-30 10:26:32,910 INFO L117 PetriNetUnfolderBase]: For 97916/99065 co-relation queries the response was YES. [2025-04-30 10:26:32,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32176 conditions, 5116 events. 1771/5116 cut-off events. For 97916/99065 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 45996 event pairs, 120 based on Foata normal form. 315/5414 useless extension candidates. Maximal degree in co-relation 32050. Up to 1155 conditions per place. [2025-04-30 10:26:32,956 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 606 selfloop transitions, 225 changer transitions 17/942 dead transitions. [2025-04-30 10:26:32,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 942 transitions, 19631 flow [2025-04-30 10:26:32,956 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2025-04-30 10:26:32,957 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2025-04-30 10:26:32,957 INFO L175 Difference]: Start difference. First operand has 278 places, 693 transitions, 14741 flow. Second operand 15 states and 1076 transitions. [2025-04-30 10:26:32,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 942 transitions, 19631 flow [2025-04-30 10:26:33,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 942 transitions, 19238 flow, removed 41 selfloop flow, removed 11 redundant places. [2025-04-30 10:26:33,398 INFO L231 Difference]: Finished difference. Result has 289 places, 705 transitions, 15510 flow [2025-04-30 10:26:33,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14414, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15510, PETRI_PLACES=289, PETRI_TRANSITIONS=705} [2025-04-30 10:26:33,399 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 197 predicate places. [2025-04-30 10:26:33,399 INFO L485 AbstractCegarLoop]: Abstraction has has 289 places, 705 transitions, 15510 flow [2025-04-30 10:26:33,399 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:33,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:33,399 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] [2025-04-30 10:26:33,399 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-04-30 10:26:33,399 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:33,400 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:33,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1141594097, now seen corresponding path program 4 times [2025-04-30 10:26:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:33,400 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604827696] [2025-04-30 10:26:33,400 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:26:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:33,405 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-04-30 10:26:33,407 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-04-30 10:26:33,407 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:26:33,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:33,625 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 10:26:33,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:33,625 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604827696] [2025-04-30 10:26:33,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604827696] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355436582] [2025-04-30 10:26:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:33,627 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:33,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:33,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:33,983 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:33,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 705 transitions, 15510 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:33,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:33,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:33,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:35,599 INFO L116 PetriNetUnfolderBase]: 2323/6224 cut-off events. [2025-04-30 10:26:35,599 INFO L117 PetriNetUnfolderBase]: For 123111/123418 co-relation queries the response was YES. [2025-04-30 10:26:35,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40039 conditions, 6224 events. 2323/6224 cut-off events. For 123111/123418 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 55303 event pairs, 357 based on Foata normal form. 129/6313 useless extension candidates. Maximal degree in co-relation 39907. Up to 1717 conditions per place. [2025-04-30 10:26:35,647 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 677 selfloop transitions, 270 changer transitions 35/1052 dead transitions. [2025-04-30 10:26:35,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 1052 transitions, 21530 flow [2025-04-30 10:26:35,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1055 transitions. [2025-04-30 10:26:35,649 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.74822695035461 [2025-04-30 10:26:35,649 INFO L175 Difference]: Start difference. First operand has 289 places, 705 transitions, 15510 flow. Second operand 15 states and 1055 transitions. [2025-04-30 10:26:35,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 1052 transitions, 21530 flow [2025-04-30 10:26:36,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 1052 transitions, 21011 flow, removed 128 selfloop flow, removed 10 redundant places. [2025-04-30 10:26:36,183 INFO L231 Difference]: Finished difference. Result has 301 places, 751 transitions, 17021 flow [2025-04-30 10:26:36,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15029, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17021, PETRI_PLACES=301, PETRI_TRANSITIONS=751} [2025-04-30 10:26:36,184 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 209 predicate places. [2025-04-30 10:26:36,184 INFO L485 AbstractCegarLoop]: Abstraction has has 301 places, 751 transitions, 17021 flow [2025-04-30 10:26:36,184 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:36,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:36,184 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] [2025-04-30 10:26:36,184 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-04-30 10:26:36,184 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:36,185 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:36,185 INFO L85 PathProgramCache]: Analyzing trace with hash 180856771, now seen corresponding path program 5 times [2025-04-30 10:26:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:36,185 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120789068] [2025-04-30 10:26:36,185 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-30 10:26:36,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:36,189 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:36,192 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:36,192 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:36,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:36,351 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 10:26:36,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:36,351 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120789068] [2025-04-30 10:26:36,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120789068] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:36,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:36,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:36,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477834138] [2025-04-30 10:26:36,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:36,352 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:36,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:36,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:36,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:36,570 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:36,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 751 transitions, 17021 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:36,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:36,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:36,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:38,192 INFO L116 PetriNetUnfolderBase]: 2294/6166 cut-off events. [2025-04-30 10:26:38,192 INFO L117 PetriNetUnfolderBase]: For 129490/129792 co-relation queries the response was YES. [2025-04-30 10:26:38,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40958 conditions, 6166 events. 2294/6166 cut-off events. For 129490/129792 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 54708 event pairs, 278 based on Foata normal form. 106/6238 useless extension candidates. Maximal degree in co-relation 40821. Up to 1237 conditions per place. [2025-04-30 10:26:38,248 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 903 selfloop transitions, 148 changer transitions 34/1155 dead transitions. [2025-04-30 10:26:38,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1155 transitions, 24012 flow [2025-04-30 10:26:38,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1058 transitions. [2025-04-30 10:26:38,249 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.750354609929078 [2025-04-30 10:26:38,249 INFO L175 Difference]: Start difference. First operand has 301 places, 751 transitions, 17021 flow. Second operand 15 states and 1058 transitions. [2025-04-30 10:26:38,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1155 transitions, 24012 flow [2025-04-30 10:26:38,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1155 transitions, 23794 flow, removed 54 selfloop flow, removed 8 redundant places. [2025-04-30 10:26:38,905 INFO L231 Difference]: Finished difference. Result has 315 places, 798 transitions, 18364 flow [2025-04-30 10:26:38,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=16843, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18364, PETRI_PLACES=315, PETRI_TRANSITIONS=798} [2025-04-30 10:26:38,906 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 223 predicate places. [2025-04-30 10:26:38,906 INFO L485 AbstractCegarLoop]: Abstraction has has 315 places, 798 transitions, 18364 flow [2025-04-30 10:26:38,907 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:38,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:38,907 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] [2025-04-30 10:26:38,907 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-04-30 10:26:38,907 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:38,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1348718259, now seen corresponding path program 1 times [2025-04-30 10:26:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:38,908 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727634703] [2025-04-30 10:26:38,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:38,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:38,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:38,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:38,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:39,153 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 10:26:39,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:39,153 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727634703] [2025-04-30 10:26:39,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727634703] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:39,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:39,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:39,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039840516] [2025-04-30 10:26:39,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:39,153 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:39,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:39,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:39,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:39,444 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:39,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 798 transitions, 18364 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:39,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:39,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:39,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:40,912 INFO L116 PetriNetUnfolderBase]: 1920/5452 cut-off events. [2025-04-30 10:26:40,912 INFO L117 PetriNetUnfolderBase]: For 135750/136395 co-relation queries the response was YES. [2025-04-30 10:26:40,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37202 conditions, 5452 events. 1920/5452 cut-off events. For 135750/136395 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 49237 event pairs, 151 based on Foata normal form. 198/5615 useless extension candidates. Maximal degree in co-relation 37058. Up to 1433 conditions per place. [2025-04-30 10:26:40,955 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 609 selfloop transitions, 180 changer transitions 34/1068 dead transitions. [2025-04-30 10:26:40,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1068 transitions, 23274 flow [2025-04-30 10:26:40,955 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-30 10:26:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-04-30 10:26:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1029 transitions. [2025-04-30 10:26:40,956 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7819148936170213 [2025-04-30 10:26:40,956 INFO L175 Difference]: Start difference. First operand has 315 places, 798 transitions, 18364 flow. Second operand 14 states and 1029 transitions. [2025-04-30 10:26:40,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 1068 transitions, 23274 flow [2025-04-30 10:26:41,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1068 transitions, 23022 flow, removed 69 selfloop flow, removed 8 redundant places. [2025-04-30 10:26:41,499 INFO L231 Difference]: Finished difference. Result has 330 places, 869 transitions, 20064 flow [2025-04-30 10:26:41,499 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18120, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=798, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20064, PETRI_PLACES=330, PETRI_TRANSITIONS=869} [2025-04-30 10:26:41,500 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 238 predicate places. [2025-04-30 10:26:41,500 INFO L485 AbstractCegarLoop]: Abstraction has has 330 places, 869 transitions, 20064 flow [2025-04-30 10:26:41,500 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:41,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:41,500 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] [2025-04-30 10:26:41,500 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-30 10:26:41,501 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:41,501 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1424659183, now seen corresponding path program 2 times [2025-04-30 10:26:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:41,501 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736500019] [2025-04-30 10:26:41,501 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:41,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:41,506 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:41,508 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:41,508 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:41,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:41,713 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 10:26:41,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:41,713 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736500019] [2025-04-30 10:26:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736500019] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:41,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:41,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838938022] [2025-04-30 10:26:41,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:41,714 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:41,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:41,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:42,097 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:42,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 869 transitions, 20064 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:42,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:42,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:42,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:43,696 INFO L116 PetriNetUnfolderBase]: 1959/5582 cut-off events. [2025-04-30 10:26:43,696 INFO L117 PetriNetUnfolderBase]: For 141679/142271 co-relation queries the response was YES. [2025-04-30 10:26:43,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38648 conditions, 5582 events. 1959/5582 cut-off events. For 141679/142271 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 50694 event pairs, 109 based on Foata normal form. 156/5710 useless extension candidates. Maximal degree in co-relation 38495. Up to 1125 conditions per place. [2025-04-30 10:26:43,756 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 714 selfloop transitions, 194 changer transitions 19/1172 dead transitions. [2025-04-30 10:26:43,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1172 transitions, 25469 flow [2025-04-30 10:26:43,756 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1100 transitions. [2025-04-30 10:26:43,757 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7801418439716312 [2025-04-30 10:26:43,757 INFO L175 Difference]: Start difference. First operand has 330 places, 869 transitions, 20064 flow. Second operand 15 states and 1100 transitions. [2025-04-30 10:26:43,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1172 transitions, 25469 flow [2025-04-30 10:26:44,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1172 transitions, 25393 flow, removed 32 selfloop flow, removed 3 redundant places. [2025-04-30 10:26:44,535 INFO L231 Difference]: Finished difference. Result has 348 places, 914 transitions, 21407 flow [2025-04-30 10:26:44,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20006, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21407, PETRI_PLACES=348, PETRI_TRANSITIONS=914} [2025-04-30 10:26:44,536 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 256 predicate places. [2025-04-30 10:26:44,536 INFO L485 AbstractCegarLoop]: Abstraction has has 348 places, 914 transitions, 21407 flow [2025-04-30 10:26:44,536 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:44,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:44,536 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] [2025-04-30 10:26:44,536 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-30 10:26:44,536 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:44,537 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1456572429, now seen corresponding path program 3 times [2025-04-30 10:26:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:44,537 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818100350] [2025-04-30 10:26:44,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:26:44,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:44,544 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:44,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:44,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-30 10:26:44,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:44,821 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 10:26:44,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:44,821 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818100350] [2025-04-30 10:26:44,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818100350] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:44,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:44,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963975863] [2025-04-30 10:26:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:44,822 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:44,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:44,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:45,245 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:45,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 914 transitions, 21407 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:45,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:45,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:45,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:47,059 INFO L116 PetriNetUnfolderBase]: 2000/5687 cut-off events. [2025-04-30 10:26:47,060 INFO L117 PetriNetUnfolderBase]: For 155905/156538 co-relation queries the response was YES. [2025-04-30 10:26:47,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40650 conditions, 5687 events. 2000/5687 cut-off events. For 155905/156538 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 51866 event pairs, 151 based on Foata normal form. 213/5864 useless extension candidates. Maximal degree in co-relation 40490. Up to 1521 conditions per place. [2025-04-30 10:26:47,116 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 645 selfloop transitions, 225 changer transitions 30/1145 dead transitions. [2025-04-30 10:26:47,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1145 transitions, 26368 flow [2025-04-30 10:26:47,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1095 transitions. [2025-04-30 10:26:47,118 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.776595744680851 [2025-04-30 10:26:47,118 INFO L175 Difference]: Start difference. First operand has 348 places, 914 transitions, 21407 flow. Second operand 15 states and 1095 transitions. [2025-04-30 10:26:47,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1145 transitions, 26368 flow [2025-04-30 10:26:47,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1145 transitions, 26066 flow, removed 50 selfloop flow, removed 8 redundant places. [2025-04-30 10:26:47,834 INFO L231 Difference]: Finished difference. Result has 360 places, 943 transitions, 22886 flow [2025-04-30 10:26:47,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21150, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=22886, PETRI_PLACES=360, PETRI_TRANSITIONS=943} [2025-04-30 10:26:47,835 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 268 predicate places. [2025-04-30 10:26:47,835 INFO L485 AbstractCegarLoop]: Abstraction has has 360 places, 943 transitions, 22886 flow [2025-04-30 10:26:47,836 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:47,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:47,836 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] [2025-04-30 10:26:47,836 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-04-30 10:26:47,836 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:47,836 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2117122649, now seen corresponding path program 1 times [2025-04-30 10:26:47,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:47,836 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388146010] [2025-04-30 10:26:47,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:47,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:47,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:47,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:47,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:47,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:48,009 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 10:26:48,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:48,009 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388146010] [2025-04-30 10:26:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388146010] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:48,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:48,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:48,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352769014] [2025-04-30 10:26:48,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:48,010 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:48,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:48,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:48,380 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:26:48,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 943 transitions, 22886 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:48,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:48,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:26:48,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:50,408 INFO L116 PetriNetUnfolderBase]: 2429/6525 cut-off events. [2025-04-30 10:26:50,408 INFO L117 PetriNetUnfolderBase]: For 179981/180355 co-relation queries the response was YES. [2025-04-30 10:26:50,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47971 conditions, 6525 events. 2429/6525 cut-off events. For 179981/180355 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 58825 event pairs, 343 based on Foata normal form. 92/6575 useless extension candidates. Maximal degree in co-relation 47808. Up to 1371 conditions per place. [2025-04-30 10:26:50,485 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1002 selfloop transitions, 169 changer transitions 61/1314 dead transitions. [2025-04-30 10:26:50,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1314 transitions, 30139 flow [2025-04-30 10:26:50,486 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-30 10:26:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-04-30 10:26:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1120 transitions. [2025-04-30 10:26:50,486 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7446808510638298 [2025-04-30 10:26:50,487 INFO L175 Difference]: Start difference. First operand has 360 places, 943 transitions, 22886 flow. Second operand 16 states and 1120 transitions. [2025-04-30 10:26:50,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1314 transitions, 30139 flow [2025-04-30 10:26:51,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 1314 transitions, 29860 flow, removed 22 selfloop flow, removed 10 redundant places. [2025-04-30 10:26:51,576 INFO L231 Difference]: Finished difference. Result has 373 places, 994 transitions, 23772 flow [2025-04-30 10:26:51,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=22646, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=23772, PETRI_PLACES=373, PETRI_TRANSITIONS=994} [2025-04-30 10:26:51,577 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 281 predicate places. [2025-04-30 10:26:51,577 INFO L485 AbstractCegarLoop]: Abstraction has has 373 places, 994 transitions, 23772 flow [2025-04-30 10:26:51,578 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:26:51,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:51,578 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] [2025-04-30 10:26:51,578 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-04-30 10:26:51,578 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:51,578 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1810405431, now seen corresponding path program 4 times [2025-04-30 10:26:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:51,579 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650038744] [2025-04-30 10:26:51,579 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:26:51,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:51,584 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-04-30 10:26:51,586 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-04-30 10:26:51,587 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:26:51,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:51,783 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 10:26:51,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:51,784 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650038744] [2025-04-30 10:26:51,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650038744] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:51,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:51,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203438376] [2025-04-30 10:26:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:51,785 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:51,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:51,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:51,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:52,132 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:52,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 994 transitions, 23772 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:52,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:52,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:52,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:54,031 INFO L116 PetriNetUnfolderBase]: 1992/5755 cut-off events. [2025-04-30 10:26:54,031 INFO L117 PetriNetUnfolderBase]: For 178304/179030 co-relation queries the response was YES. [2025-04-30 10:26:54,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43325 conditions, 5755 events. 1992/5755 cut-off events. For 178304/179030 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 52995 event pairs, 147 based on Foata normal form. 222/5952 useless extension candidates. Maximal degree in co-relation 43155. Up to 1515 conditions per place. [2025-04-30 10:26:54,092 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 694 selfloop transitions, 263 changer transitions 30/1243 dead transitions. [2025-04-30 10:26:54,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1243 transitions, 29573 flow [2025-04-30 10:26:54,093 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1098 transitions. [2025-04-30 10:26:54,094 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7787234042553192 [2025-04-30 10:26:54,094 INFO L175 Difference]: Start difference. First operand has 373 places, 994 transitions, 23772 flow. Second operand 15 states and 1098 transitions. [2025-04-30 10:26:54,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1243 transitions, 29573 flow [2025-04-30 10:26:55,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 1243 transitions, 29366 flow, removed 93 selfloop flow, removed 4 redundant places. [2025-04-30 10:26:55,081 INFO L231 Difference]: Finished difference. Result has 390 places, 1035 transitions, 25821 flow [2025-04-30 10:26:55,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23601, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=746, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25821, PETRI_PLACES=390, PETRI_TRANSITIONS=1035} [2025-04-30 10:26:55,082 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 298 predicate places. [2025-04-30 10:26:55,082 INFO L485 AbstractCegarLoop]: Abstraction has has 390 places, 1035 transitions, 25821 flow [2025-04-30 10:26:55,082 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:55,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:55,082 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] [2025-04-30 10:26:55,082 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-04-30 10:26:55,083 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:55,083 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:55,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1525042069, now seen corresponding path program 5 times [2025-04-30 10:26:55,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:55,083 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796504957] [2025-04-30 10:26:55,083 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-30 10:26:55,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:55,088 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:55,090 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:55,090 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:55,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:55,361 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 10:26:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:55,361 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796504957] [2025-04-30 10:26:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796504957] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:55,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:55,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772756920] [2025-04-30 10:26:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:55,361 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:55,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:55,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:55,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:55,731 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:55,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1035 transitions, 25821 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:55,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:55,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:55,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:57,829 INFO L116 PetriNetUnfolderBase]: 2003/5802 cut-off events. [2025-04-30 10:26:57,829 INFO L117 PetriNetUnfolderBase]: For 199066/199898 co-relation queries the response was YES. [2025-04-30 10:26:57,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44920 conditions, 5802 events. 2003/5802 cut-off events. For 199066/199898 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 53651 event pairs, 145 based on Foata normal form. 236/6015 useless extension candidates. Maximal degree in co-relation 44744. Up to 1456 conditions per place. [2025-04-30 10:26:57,896 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 725 selfloop transitions, 284 changer transitions 25/1290 dead transitions. [2025-04-30 10:26:57,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1290 transitions, 32001 flow [2025-04-30 10:26:57,897 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:26:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:26:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1098 transitions. [2025-04-30 10:26:57,897 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7787234042553192 [2025-04-30 10:26:57,897 INFO L175 Difference]: Start difference. First operand has 390 places, 1035 transitions, 25821 flow. Second operand 15 states and 1098 transitions. [2025-04-30 10:26:57,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1290 transitions, 32001 flow [2025-04-30 10:26:58,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1290 transitions, 31649 flow, removed 56 selfloop flow, removed 10 redundant places. [2025-04-30 10:26:58,861 INFO L231 Difference]: Finished difference. Result has 401 places, 1079 transitions, 27815 flow [2025-04-30 10:26:58,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=25490, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27815, PETRI_PLACES=401, PETRI_TRANSITIONS=1079} [2025-04-30 10:26:58,862 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 309 predicate places. [2025-04-30 10:26:58,862 INFO L485 AbstractCegarLoop]: Abstraction has has 401 places, 1079 transitions, 27815 flow [2025-04-30 10:26:58,862 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:58,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:58,862 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] [2025-04-30 10:26:58,862 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-04-30 10:26:58,863 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:58,863 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1829340801, now seen corresponding path program 6 times [2025-04-30 10:26:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:58,863 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33613390] [2025-04-30 10:26:58,863 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-30 10:26:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:58,868 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:26:58,870 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:26:58,871 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-30 10:26:58,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:59,036 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 10:26:59,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:59,036 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33613390] [2025-04-30 10:26:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33613390] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:59,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:59,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:26:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170894844] [2025-04-30 10:26:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:59,037 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:26:59,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:59,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:26:59,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:26:59,398 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-04-30 10:26:59,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 1079 transitions, 27815 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:26:59,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:59,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-04-30 10:26:59,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:27:01,129 INFO L116 PetriNetUnfolderBase]: 1984/5788 cut-off events. [2025-04-30 10:27:01,130 INFO L117 PetriNetUnfolderBase]: For 208218/209059 co-relation queries the response was YES. [2025-04-30 10:27:01,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45515 conditions, 5788 events. 1984/5788 cut-off events. For 208218/209059 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 53710 event pairs, 134 based on Foata normal form. 245/6014 useless extension candidates. Maximal degree in co-relation 45334. Up to 1500 conditions per place. [2025-04-30 10:27:01,198 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 773 selfloop transitions, 251 changer transitions 31/1311 dead transitions. [2025-04-30 10:27:01,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 1311 transitions, 32945 flow [2025-04-30 10:27:01,199 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:27:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:27:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1077 transitions. [2025-04-30 10:27:01,200 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7638297872340426 [2025-04-30 10:27:01,200 INFO L175 Difference]: Start difference. First operand has 401 places, 1079 transitions, 27815 flow. Second operand 15 states and 1077 transitions. [2025-04-30 10:27:01,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 1311 transitions, 32945 flow [2025-04-30 10:27:02,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1311 transitions, 32657 flow, removed 67 selfloop flow, removed 7 redundant places. [2025-04-30 10:27:02,209 INFO L231 Difference]: Finished difference. Result has 417 places, 1104 transitions, 28887 flow [2025-04-30 10:27:02,210 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27542, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=835, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28887, PETRI_PLACES=417, PETRI_TRANSITIONS=1104} [2025-04-30 10:27:02,210 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 325 predicate places. [2025-04-30 10:27:02,210 INFO L485 AbstractCegarLoop]: Abstraction has has 417 places, 1104 transitions, 28887 flow [2025-04-30 10:27:02,210 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 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 10:27:02,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:27:02,210 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] [2025-04-30 10:27:02,211 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-04-30 10:27:02,211 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:27:02,211 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:27:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash 921042965, now seen corresponding path program 2 times [2025-04-30 10:27:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:27:02,211 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51934257] [2025-04-30 10:27:02,211 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:27:02,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:27:02,218 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:27:02,221 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:27:02,221 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:27:02,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:27:02,401 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 10:27:02,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:27:02,402 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51934257] [2025-04-30 10:27:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51934257] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:27:02,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:27:02,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:27:02,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922239197] [2025-04-30 10:27:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:27:02,402 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:27:02,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:27:02,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:27:02,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:27:02,613 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:27:02,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 1104 transitions, 28887 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:27:02,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:27:02,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:27:02,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:27:04,875 INFO L116 PetriNetUnfolderBase]: 2446/6728 cut-off events. [2025-04-30 10:27:04,875 INFO L117 PetriNetUnfolderBase]: For 238386/238873 co-relation queries the response was YES. [2025-04-30 10:27:04,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54094 conditions, 6728 events. 2446/6728 cut-off events. For 238386/238873 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 61754 event pairs, 453 based on Foata normal form. 77/6763 useless extension candidates. Maximal degree in co-relation 53905. Up to 2886 conditions per place. [2025-04-30 10:27:04,957 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 752 selfloop transitions, 391 changer transitions 51/1281 dead transitions. [2025-04-30 10:27:04,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1281 transitions, 33658 flow [2025-04-30 10:27:04,958 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-30 10:27:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-04-30 10:27:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 965 transitions. [2025-04-30 10:27:04,959 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7332826747720365 [2025-04-30 10:27:04,959 INFO L175 Difference]: Start difference. First operand has 417 places, 1104 transitions, 28887 flow. Second operand 14 states and 965 transitions. [2025-04-30 10:27:04,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1281 transitions, 33658 flow [2025-04-30 10:27:06,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1281 transitions, 33223 flow, removed 87 selfloop flow, removed 9 redundant places. [2025-04-30 10:27:06,163 INFO L231 Difference]: Finished difference. Result has 427 places, 1135 transitions, 30134 flow [2025-04-30 10:27:06,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=28481, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=30134, PETRI_PLACES=427, PETRI_TRANSITIONS=1135} [2025-04-30 10:27:06,164 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 335 predicate places. [2025-04-30 10:27:06,164 INFO L485 AbstractCegarLoop]: Abstraction has has 427 places, 1135 transitions, 30134 flow [2025-04-30 10:27:06,164 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:27:06,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:27:06,164 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] [2025-04-30 10:27:06,164 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-04-30 10:27:06,164 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:27:06,165 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:27:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash -464102143, now seen corresponding path program 3 times [2025-04-30 10:27:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:27:06,165 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384384107] [2025-04-30 10:27:06,165 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:27:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:27:06,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-04-30 10:27:06,172 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-30 10:27:06,172 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-30 10:27:06,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:27:06,326 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 10:27:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:27:06,327 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384384107] [2025-04-30 10:27:06,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384384107] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:27:06,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:27:06,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:27:06,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666335669] [2025-04-30 10:27:06,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:27:06,327 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:27:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:27:06,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:27:06,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:27:06,610 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:27:06,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 1135 transitions, 30134 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:27:06,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:27:06,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:27:06,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:27:08,911 INFO L116 PetriNetUnfolderBase]: 2494/6828 cut-off events. [2025-04-30 10:27:08,911 INFO L117 PetriNetUnfolderBase]: For 249532/250023 co-relation queries the response was YES. [2025-04-30 10:27:08,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56098 conditions, 6828 events. 2494/6828 cut-off events. For 249532/250023 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 62682 event pairs, 420 based on Foata normal form. 97/6887 useless extension candidates. Maximal degree in co-relation 55906. Up to 2082 conditions per place. [2025-04-30 10:27:08,999 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1054 selfloop transitions, 234 changer transitions 21/1396 dead transitions. [2025-04-30 10:27:09,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1396 transitions, 36775 flow [2025-04-30 10:27:09,000 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-30 10:27:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-04-30 10:27:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1036 transitions. [2025-04-30 10:27:09,001 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7347517730496453 [2025-04-30 10:27:09,001 INFO L175 Difference]: Start difference. First operand has 427 places, 1135 transitions, 30134 flow. Second operand 15 states and 1036 transitions. [2025-04-30 10:27:09,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1396 transitions, 36775 flow [2025-04-30 10:27:10,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1396 transitions, 36611 flow, removed 29 selfloop flow, removed 8 redundant places. [2025-04-30 10:27:10,459 INFO L231 Difference]: Finished difference. Result has 439 places, 1186 transitions, 31918 flow [2025-04-30 10:27:10,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29983, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31918, PETRI_PLACES=439, PETRI_TRANSITIONS=1186} [2025-04-30 10:27:10,460 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 347 predicate places. [2025-04-30 10:27:10,460 INFO L485 AbstractCegarLoop]: Abstraction has has 439 places, 1186 transitions, 31918 flow [2025-04-30 10:27:10,460 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:27:10,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:27:10,460 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] [2025-04-30 10:27:10,460 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-04-30 10:27:10,460 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:27:10,461 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:27:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1884064197, now seen corresponding path program 4 times [2025-04-30 10:27:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:27:10,461 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404282676] [2025-04-30 10:27:10,461 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:27:10,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:27:10,465 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-04-30 10:27:10,467 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-04-30 10:27:10,467 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:27:10,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:27:10,627 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 10:27:10,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:27:10,627 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404282676] [2025-04-30 10:27:10,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404282676] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:27:10,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:27:10,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-30 10:27:10,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586655981] [2025-04-30 10:27:10,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:27:10,627 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-30 10:27:10,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:27:10,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-30 10:27:10,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:27:10,853 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-04-30 10:27:10,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 1186 transitions, 31918 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 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 10:27:10,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:27:10,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-04-30 10:27:10,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15