./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:45:32,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:45:32,528 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:45:32,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:45:32,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:45:32,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:45:32,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:45:32,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:45:32,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:45:32,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:45:32,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:45:32,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:45:32,553 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:45:32,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:45:32,554 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:45:32,555 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:45:32,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:32,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:45:32,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:45:32,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:45:32,557 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2025-03-04 06:45:32,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:45:32,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:45:32,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:45:32,791 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:45:32,791 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:45:32,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2025-03-04 06:45:33,965 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640db3a21/664e87c1a2e740ea95520ce6ce0879b4/FLAGd3dac392a [2025-03-04 06:45:34,262 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:45:34,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2025-03-04 06:45:34,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640db3a21/664e87c1a2e740ea95520ce6ce0879b4/FLAGd3dac392a [2025-03-04 06:45:34,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640db3a21/664e87c1a2e740ea95520ce6ce0879b4 [2025-03-04 06:45:34,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:45:34,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:45:34,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:34,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:45:34,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:45:34,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f64504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34, skipping insertion in model container [2025-03-04 06:45:34,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:45:34,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:34,847 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:45:34,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:34,911 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:45:34,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34 WrapperNode [2025-03-04 06:45:34,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:34,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:34,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:45:34,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:45:34,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,938 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2025-03-04 06:45:34,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:34,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:45:34,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:45:34,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:45:34,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:45:34,959 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:45:34,959 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:45:34,960 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:45:34,960 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (1/1) ... [2025-03-04 06:45:34,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:34,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:34,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:45:34,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:45:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:45:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:45:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:45:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:45:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:45:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:45:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:45:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:45:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:45:35,007 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:45:35,101 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:45:35,103 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:45:35,256 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:45:35,257 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:45:35,279 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:45:35,281 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:45:35,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:35 BoogieIcfgContainer [2025-03-04 06:45:35,282 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:45:35,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:45:35,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:45:35,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:45:35,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:45:34" (1/3) ... [2025-03-04 06:45:35,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538f9643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:45:35, skipping insertion in model container [2025-03-04 06:45:35,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:34" (2/3) ... [2025-03-04 06:45:35,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538f9643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:45:35, skipping insertion in model container [2025-03-04 06:45:35,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:35" (3/3) ... [2025-03-04 06:45:35,291 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2025-03-04 06:45:35,303 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:45:35,306 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_13-equ_proc_nr.i that has 2 procedures, 81 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 06:45:35,306 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:45:35,360 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:45:35,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2025-03-04 06:45:35,428 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2025-03-04 06:45:35,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:35,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-03-04 06:45:35,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2025-03-04 06:45:35,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2025-03-04 06:45:35,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:45:35,456 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d085402, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:45:35,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 06:45:35,475 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:45:35,475 INFO L124 PetriNetUnfolderBase]: 1/60 cut-off events. [2025-03-04 06:45:35,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:35,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:35,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:35,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:35,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1104607147, now seen corresponding path program 1 times [2025-03-04 06:45:35,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:35,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084028873] [2025-03-04 06:45:35,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:35,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 06:45:35,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 06:45:35,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:35,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:36,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:36,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084028873] [2025-03-04 06:45:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084028873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:36,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:36,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:36,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558752031] [2025-03-04 06:45:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:36,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:36,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:36,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:36,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:36,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2025-03-04 06:45:36,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:36,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:36,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2025-03-04 06:45:36,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:36,573 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2025-03-04 06:45:36,573 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:36,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1541 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2025-03-04 06:45:36,578 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2025-03-04 06:45:36,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2025-03-04 06:45:36,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2025-03-04 06:45:36,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2025-03-04 06:45:36,592 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2025-03-04 06:45:36,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2025-03-04 06:45:36,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:36,599 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2025-03-04 06:45:36,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2025-03-04 06:45:36,606 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2025-03-04 06:45:36,607 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2025-03-04 06:45:36,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:36,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:36,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:36,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:45:36,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:36,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash -737367968, now seen corresponding path program 1 times [2025-03-04 06:45:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611311485] [2025-03-04 06:45:36,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:36,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:36,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 06:45:36,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 06:45:36,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:36,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:36,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:36,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611311485] [2025-03-04 06:45:36,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611311485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:36,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:36,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:36,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666509648] [2025-03-04 06:45:36,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:36,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:36,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:36,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:36,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:36,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2025-03-04 06:45:36,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:36,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:36,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2025-03-04 06:45:36,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:37,106 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2025-03-04 06:45:37,107 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2025-03-04 06:45:37,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2611 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2025-03-04 06:45:37,114 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2025-03-04 06:45:37,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2025-03-04 06:45:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2025-03-04 06:45:37,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2025-03-04 06:45:37,118 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2025-03-04 06:45:37,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2025-03-04 06:45:37,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:37,125 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2025-03-04 06:45:37,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2025-03-04 06:45:37,127 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2025-03-04 06:45:37,127 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2025-03-04 06:45:37,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:37,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:37,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:37,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:45:37,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:37,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 39838657, now seen corresponding path program 1 times [2025-03-04 06:45:37,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:37,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891457438] [2025-03-04 06:45:37,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:37,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:37,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:37,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:37,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:37,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:37,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891457438] [2025-03-04 06:45:37,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891457438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:37,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 06:45:37,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051041327] [2025-03-04 06:45:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:37,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 06:45:37,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:37,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 06:45:37,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-04 06:45:37,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 81 [2025-03-04 06:45:37,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:37,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:37,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 81 [2025-03-04 06:45:37,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:37,840 INFO L124 PetriNetUnfolderBase]: 92/471 cut-off events. [2025-03-04 06:45:37,840 INFO L125 PetriNetUnfolderBase]: For 187/189 co-relation queries the response was YES. [2025-03-04 06:45:37,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 471 events. 92/471 cut-off events. For 187/189 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2437 event pairs, 14 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 906. Up to 84 conditions per place. [2025-03-04 06:45:37,843 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 17 selfloop transitions, 1 changer transitions 13/136 dead transitions. [2025-03-04 06:45:37,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 136 transitions, 650 flow [2025-03-04 06:45:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 06:45:37,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 06:45:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 529 transitions. [2025-03-04 06:45:37,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.816358024691358 [2025-03-04 06:45:37,845 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 8 states and 529 transitions. [2025-03-04 06:45:37,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 136 transitions, 650 flow [2025-03-04 06:45:37,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 136 transitions, 632 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:37,853 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 572 flow [2025-03-04 06:45:37,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=572, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2025-03-04 06:45:37,855 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 31 predicate places. [2025-03-04 06:45:37,855 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 572 flow [2025-03-04 06:45:37,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:37,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:37,855 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:45:37,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:37,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash 852415639, now seen corresponding path program 1 times [2025-03-04 06:45:37,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:37,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006939517] [2025-03-04 06:45:37,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:37,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:37,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:37,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:37,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:38,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:38,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006939517] [2025-03-04 06:45:38,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006939517] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:38,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:38,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:38,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926885155] [2025-03-04 06:45:38,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:38,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:38,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:38,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:38,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:38,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:38,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 572 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:38,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:38,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:38,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:39,392 INFO L124 PetriNetUnfolderBase]: 229/697 cut-off events. [2025-03-04 06:45:39,392 INFO L125 PetriNetUnfolderBase]: For 737/743 co-relation queries the response was YES. [2025-03-04 06:45:39,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 697 events. 229/697 cut-off events. For 737/743 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3616 event pairs, 27 based on Foata normal form. 10/704 useless extension candidates. Maximal degree in co-relation 2146. Up to 236 conditions per place. [2025-03-04 06:45:39,396 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 64 selfloop transitions, 36 changer transitions 48/198 dead transitions. [2025-03-04 06:45:39,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 1266 flow [2025-03-04 06:45:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 06:45:39,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 06:45:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2025-03-04 06:45:39,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7107583774250441 [2025-03-04 06:45:39,398 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 572 flow. Second operand 14 states and 806 transitions. [2025-03-04 06:45:39,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 1266 flow [2025-03-04 06:45:39,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 198 transitions, 1247 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-04 06:45:39,405 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 814 flow [2025-03-04 06:45:39,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=814, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2025-03-04 06:45:39,406 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2025-03-04 06:45:39,406 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 814 flow [2025-03-04 06:45:39,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:39,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:39,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:39,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:45:39,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:39,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:39,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2073143433, now seen corresponding path program 2 times [2025-03-04 06:45:39,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:39,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862964142] [2025-03-04 06:45:39,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:39,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:39,417 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:39,423 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:39,424 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:39,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:39,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:39,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862964142] [2025-03-04 06:45:39,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862964142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:39,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:39,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464512880] [2025-03-04 06:45:39,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:39,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:39,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:39,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:40,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:40,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 814 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:40,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:40,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:40,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:40,644 INFO L124 PetriNetUnfolderBase]: 189/619 cut-off events. [2025-03-04 06:45:40,644 INFO L125 PetriNetUnfolderBase]: For 1565/1584 co-relation queries the response was YES. [2025-03-04 06:45:40,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 619 events. 189/619 cut-off events. For 1565/1584 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3192 event pairs, 44 based on Foata normal form. 18/633 useless extension candidates. Maximal degree in co-relation 2353. Up to 256 conditions per place. [2025-03-04 06:45:40,650 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 57 selfloop transitions, 39 changer transitions 37/183 dead transitions. [2025-03-04 06:45:40,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 183 transitions, 1404 flow [2025-03-04 06:45:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 06:45:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 06:45:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 754 transitions. [2025-03-04 06:45:40,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2025-03-04 06:45:40,653 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 814 flow. Second operand 13 states and 754 transitions. [2025-03-04 06:45:40,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 183 transitions, 1404 flow [2025-03-04 06:45:40,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1363 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-03-04 06:45:40,664 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 855 flow [2025-03-04 06:45:40,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=855, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2025-03-04 06:45:40,665 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 50 predicate places. [2025-03-04 06:45:40,665 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 855 flow [2025-03-04 06:45:40,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:40,666 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:40,666 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:40,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:45:40,666 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:40,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:40,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1175257983, now seen corresponding path program 1 times [2025-03-04 06:45:40,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:40,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060929562] [2025-03-04 06:45:40,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:40,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:40,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:40,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:40,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:40,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:40,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:40,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060929562] [2025-03-04 06:45:40,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060929562] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:40,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:40,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:40,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526469120] [2025-03-04 06:45:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:40,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:40,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:40,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:41,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:41,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 855 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:41,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:41,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:41,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:41,741 INFO L124 PetriNetUnfolderBase]: 163/545 cut-off events. [2025-03-04 06:45:41,741 INFO L125 PetriNetUnfolderBase]: For 1720/1736 co-relation queries the response was YES. [2025-03-04 06:45:41,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 545 events. 163/545 cut-off events. For 1720/1736 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2690 event pairs, 23 based on Foata normal form. 13/554 useless extension candidates. Maximal degree in co-relation 2202. Up to 90 conditions per place. [2025-03-04 06:45:41,745 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 84 selfloop transitions, 38 changer transitions 14/183 dead transitions. [2025-03-04 06:45:41,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 1610 flow [2025-03-04 06:45:41,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 06:45:41,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 06:45:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2025-03-04 06:45:41,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6903292181069959 [2025-03-04 06:45:41,747 INFO L175 Difference]: Start difference. First operand has 133 places, 128 transitions, 855 flow. Second operand 12 states and 671 transitions. [2025-03-04 06:45:41,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 1610 flow [2025-03-04 06:45:41,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 183 transitions, 1506 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-03-04 06:45:41,757 INFO L231 Difference]: Finished difference. Result has 129 places, 123 transitions, 856 flow [2025-03-04 06:45:41,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=856, PETRI_PLACES=129, PETRI_TRANSITIONS=123} [2025-03-04 06:45:41,757 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2025-03-04 06:45:41,757 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 123 transitions, 856 flow [2025-03-04 06:45:41,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:41,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:41,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:41,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:45:41,758 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:41,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1041661479, now seen corresponding path program 3 times [2025-03-04 06:45:41,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:41,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562401806] [2025-03-04 06:45:41,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:41,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:41,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:41,770 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:41,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:42,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:42,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562401806] [2025-03-04 06:45:42,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562401806] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:42,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:42,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:42,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468824238] [2025-03-04 06:45:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:42,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:42,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:42,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:42,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:42,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:42,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 856 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:42,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:42,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:42,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:42,904 INFO L124 PetriNetUnfolderBase]: 169/524 cut-off events. [2025-03-04 06:45:42,904 INFO L125 PetriNetUnfolderBase]: For 1755/1779 co-relation queries the response was YES. [2025-03-04 06:45:42,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 524 events. 169/524 cut-off events. For 1755/1779 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2411 event pairs, 32 based on Foata normal form. 23/543 useless extension candidates. Maximal degree in co-relation 2327. Up to 230 conditions per place. [2025-03-04 06:45:42,907 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 55 selfloop transitions, 42 changer transitions 28/171 dead transitions. [2025-03-04 06:45:42,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1450 flow [2025-03-04 06:45:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 06:45:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 06:45:42,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 802 transitions. [2025-03-04 06:45:42,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7072310405643739 [2025-03-04 06:45:42,909 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 856 flow. Second operand 14 states and 802 transitions. [2025-03-04 06:45:42,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1450 flow [2025-03-04 06:45:42,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 171 transitions, 1330 flow, removed 0 selfloop flow, removed 11 redundant places. [2025-03-04 06:45:42,918 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 917 flow [2025-03-04 06:45:42,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=917, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2025-03-04 06:45:42,919 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 49 predicate places. [2025-03-04 06:45:42,919 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 917 flow [2025-03-04 06:45:42,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:42,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:42,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:42,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:45:42,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:42,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:42,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1081407525, now seen corresponding path program 4 times [2025-03-04 06:45:42,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:42,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962864379] [2025-03-04 06:45:42,921 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:45:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:42,928 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 58 statements into 2 equivalence classes. [2025-03-04 06:45:42,932 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 49 of 58 statements. [2025-03-04 06:45:42,932 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-04 06:45:42,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:43,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:43,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962864379] [2025-03-04 06:45:43,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962864379] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:43,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:43,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:43,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623887258] [2025-03-04 06:45:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:43,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:43,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:43,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:43,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:43,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:43,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 917 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:43,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:43,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:43,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:43,946 INFO L124 PetriNetUnfolderBase]: 171/558 cut-off events. [2025-03-04 06:45:43,947 INFO L125 PetriNetUnfolderBase]: For 2977/3000 co-relation queries the response was YES. [2025-03-04 06:45:43,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 558 events. 171/558 cut-off events. For 2977/3000 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2709 event pairs, 27 based on Foata normal form. 19/575 useless extension candidates. Maximal degree in co-relation 2465. Up to 129 conditions per place. [2025-03-04 06:45:43,951 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 114 selfloop transitions, 37 changer transitions 12/209 dead transitions. [2025-03-04 06:45:43,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 209 transitions, 2018 flow [2025-03-04 06:45:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 833 transitions. [2025-03-04 06:45:43,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68559670781893 [2025-03-04 06:45:43,954 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 917 flow. Second operand 15 states and 833 transitions. [2025-03-04 06:45:43,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 209 transitions, 2018 flow [2025-03-04 06:45:43,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 209 transitions, 1690 flow, removed 58 selfloop flow, removed 16 redundant places. [2025-03-04 06:45:43,965 INFO L231 Difference]: Finished difference. Result has 137 places, 147 transitions, 1080 flow [2025-03-04 06:45:43,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1080, PETRI_PLACES=137, PETRI_TRANSITIONS=147} [2025-03-04 06:45:43,966 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 54 predicate places. [2025-03-04 06:45:43,967 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 147 transitions, 1080 flow [2025-03-04 06:45:43,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:43,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:43,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:43,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:45:43,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:43,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:43,968 INFO L85 PathProgramCache]: Analyzing trace with hash -436178463, now seen corresponding path program 5 times [2025-03-04 06:45:43,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:43,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12291119] [2025-03-04 06:45:43,969 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:43,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:43,977 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:43,985 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:43,985 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:43,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:44,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:44,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12291119] [2025-03-04 06:45:44,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12291119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:44,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:44,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4301212] [2025-03-04 06:45:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:44,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:44,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:44,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:44,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:44,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:44,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 1080 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:44,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:44,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:44,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:44,944 INFO L124 PetriNetUnfolderBase]: 177/550 cut-off events. [2025-03-04 06:45:44,945 INFO L125 PetriNetUnfolderBase]: For 2499/2531 co-relation queries the response was YES. [2025-03-04 06:45:44,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 550 events. 177/550 cut-off events. For 2499/2531 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2643 event pairs, 33 based on Foata normal form. 25/571 useless extension candidates. Maximal degree in co-relation 2542. Up to 263 conditions per place. [2025-03-04 06:45:44,948 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 71 selfloop transitions, 41 changer transitions 32/190 dead transitions. [2025-03-04 06:45:44,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 190 transitions, 1729 flow [2025-03-04 06:45:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 06:45:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 06:45:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 787 transitions. [2025-03-04 06:45:44,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6940035273368607 [2025-03-04 06:45:44,951 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 1080 flow. Second operand 14 states and 787 transitions. [2025-03-04 06:45:44,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 190 transitions, 1729 flow [2025-03-04 06:45:44,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 190 transitions, 1657 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-03-04 06:45:44,961 INFO L231 Difference]: Finished difference. Result has 144 places, 143 transitions, 1123 flow [2025-03-04 06:45:44,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1123, PETRI_PLACES=144, PETRI_TRANSITIONS=143} [2025-03-04 06:45:44,963 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 61 predicate places. [2025-03-04 06:45:44,963 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 143 transitions, 1123 flow [2025-03-04 06:45:44,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:44,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:44,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:44,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:45:44,964 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:44,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash -43389585, now seen corresponding path program 6 times [2025-03-04 06:45:44,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:44,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318622845] [2025-03-04 06:45:44,965 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:45:44,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:44,972 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:44,978 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:44,978 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:45:44,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:45,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:45,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318622845] [2025-03-04 06:45:45,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318622845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:45,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:45,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:45,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609819172] [2025-03-04 06:45:45,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:45,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:45,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:45,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:45,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:45,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:45,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 143 transitions, 1123 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:45,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:45,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:45,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:45,995 INFO L124 PetriNetUnfolderBase]: 212/657 cut-off events. [2025-03-04 06:45:45,996 INFO L125 PetriNetUnfolderBase]: For 4504/4543 co-relation queries the response was YES. [2025-03-04 06:45:45,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3110 conditions, 657 events. 212/657 cut-off events. For 4504/4543 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3478 event pairs, 32 based on Foata normal form. 28/682 useless extension candidates. Maximal degree in co-relation 3067. Up to 220 conditions per place. [2025-03-04 06:45:46,000 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 126 selfloop transitions, 50 changer transitions 16/238 dead transitions. [2025-03-04 06:45:46,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 238 transitions, 2375 flow [2025-03-04 06:45:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2025-03-04 06:45:46,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2025-03-04 06:45:46,002 INFO L175 Difference]: Start difference. First operand has 144 places, 143 transitions, 1123 flow. Second operand 15 states and 838 transitions. [2025-03-04 06:45:46,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 238 transitions, 2375 flow [2025-03-04 06:45:46,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 238 transitions, 2237 flow, removed 25 selfloop flow, removed 10 redundant places. [2025-03-04 06:45:46,015 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1521 flow [2025-03-04 06:45:46,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1521, PETRI_PLACES=153, PETRI_TRANSITIONS=170} [2025-03-04 06:45:46,017 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 70 predicate places. [2025-03-04 06:45:46,017 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1521 flow [2025-03-04 06:45:46,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:46,018 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:46,018 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:46,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:45:46,018 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:46,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1555094441, now seen corresponding path program 7 times [2025-03-04 06:45:46,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:46,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333179234] [2025-03-04 06:45:46,019 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:45:46,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:46,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:46,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:46,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:46,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:46,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333179234] [2025-03-04 06:45:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333179234] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:46,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:46,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:46,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623108958] [2025-03-04 06:45:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:46,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:46,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:46,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:46,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:46,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 170 transitions, 1521 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:46,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:46,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:46,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:46,956 INFO L124 PetriNetUnfolderBase]: 246/735 cut-off events. [2025-03-04 06:45:46,956 INFO L125 PetriNetUnfolderBase]: For 5786/5825 co-relation queries the response was YES. [2025-03-04 06:45:46,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 735 events. 246/735 cut-off events. For 5786/5825 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4006 event pairs, 41 based on Foata normal form. 28/758 useless extension candidates. Maximal degree in co-relation 3682. Up to 257 conditions per place. [2025-03-04 06:45:46,960 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 143 selfloop transitions, 56 changer transitions 18/263 dead transitions. [2025-03-04 06:45:46,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 2818 flow [2025-03-04 06:45:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2025-03-04 06:45:46,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2025-03-04 06:45:46,966 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1521 flow. Second operand 15 states and 841 transitions. [2025-03-04 06:45:46,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 2818 flow [2025-03-04 06:45:46,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 2724 flow, removed 35 selfloop flow, removed 8 redundant places. [2025-03-04 06:45:46,984 INFO L231 Difference]: Finished difference. Result has 166 places, 190 transitions, 1898 flow [2025-03-04 06:45:46,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1898, PETRI_PLACES=166, PETRI_TRANSITIONS=190} [2025-03-04 06:45:46,985 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 83 predicate places. [2025-03-04 06:45:46,985 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 190 transitions, 1898 flow [2025-03-04 06:45:46,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:46,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:46,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:46,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:45:46,986 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:46,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash 498538627, now seen corresponding path program 8 times [2025-03-04 06:45:46,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:46,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036076669] [2025-03-04 06:45:46,987 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:46,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:46,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:46,997 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:46,997 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:46,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036076669] [2025-03-04 06:45:47,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036076669] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:47,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:47,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:47,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036386674] [2025-03-04 06:45:47,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:47,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:47,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:47,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:47,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:47,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 190 transitions, 1898 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:47,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:47,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:47,916 INFO L124 PetriNetUnfolderBase]: 241/724 cut-off events. [2025-03-04 06:45:47,916 INFO L125 PetriNetUnfolderBase]: For 7822/7864 co-relation queries the response was YES. [2025-03-04 06:45:47,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4058 conditions, 724 events. 241/724 cut-off events. For 7822/7864 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3883 event pairs, 23 based on Foata normal form. 35/758 useless extension candidates. Maximal degree in co-relation 4005. Up to 309 conditions per place. [2025-03-04 06:45:47,920 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 142 selfloop transitions, 54 changer transitions 19/261 dead transitions. [2025-03-04 06:45:47,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 261 transitions, 3113 flow [2025-03-04 06:45:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:47,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2025-03-04 06:45:47,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2025-03-04 06:45:47,922 INFO L175 Difference]: Start difference. First operand has 166 places, 190 transitions, 1898 flow. Second operand 15 states and 836 transitions. [2025-03-04 06:45:47,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 261 transitions, 3113 flow [2025-03-04 06:45:47,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 261 transitions, 2976 flow, removed 62 selfloop flow, removed 8 redundant places. [2025-03-04 06:45:47,942 INFO L231 Difference]: Finished difference. Result has 177 places, 203 transitions, 2173 flow [2025-03-04 06:45:47,942 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2173, PETRI_PLACES=177, PETRI_TRANSITIONS=203} [2025-03-04 06:45:47,942 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2025-03-04 06:45:47,942 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 203 transitions, 2173 flow [2025-03-04 06:45:47,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:47,943 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:47,943 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:47,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:45:47,943 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:47,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:47,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1777119357, now seen corresponding path program 9 times [2025-03-04 06:45:47,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:47,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449927632] [2025-03-04 06:45:47,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:47,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:47,950 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:47,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:47,952 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:47,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:48,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449927632] [2025-03-04 06:45:48,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449927632] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:48,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:48,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:48,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58011615] [2025-03-04 06:45:48,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:48,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:48,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:48,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:48,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:48,521 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:48,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 203 transitions, 2173 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:48,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:48,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:48,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:48,874 INFO L124 PetriNetUnfolderBase]: 218/686 cut-off events. [2025-03-04 06:45:48,874 INFO L125 PetriNetUnfolderBase]: For 8055/8099 co-relation queries the response was YES. [2025-03-04 06:45:48,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 686 events. 218/686 cut-off events. For 8055/8099 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3670 event pairs, 20 based on Foata normal form. 40/725 useless extension candidates. Maximal degree in co-relation 3818. Up to 340 conditions per place. [2025-03-04 06:45:48,879 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 123 selfloop transitions, 48 changer transitions 30/247 dead transitions. [2025-03-04 06:45:48,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 247 transitions, 3042 flow [2025-03-04 06:45:48,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2025-03-04 06:45:48,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2025-03-04 06:45:48,881 INFO L175 Difference]: Start difference. First operand has 177 places, 203 transitions, 2173 flow. Second operand 15 states and 834 transitions. [2025-03-04 06:45:48,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 247 transitions, 3042 flow [2025-03-04 06:45:48,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 247 transitions, 2911 flow, removed 46 selfloop flow, removed 9 redundant places. [2025-03-04 06:45:48,905 INFO L231 Difference]: Finished difference. Result has 186 places, 199 transitions, 2147 flow [2025-03-04 06:45:48,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2062, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2147, PETRI_PLACES=186, PETRI_TRANSITIONS=199} [2025-03-04 06:45:48,906 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 103 predicate places. [2025-03-04 06:45:48,906 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 199 transitions, 2147 flow [2025-03-04 06:45:48,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:48,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:48,907 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] [2025-03-04 06:45:48,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:45:48,907 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:48,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1968065439, now seen corresponding path program 10 times [2025-03-04 06:45:48,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118747088] [2025-03-04 06:45:48,908 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:45:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:48,914 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 58 statements into 2 equivalence classes. [2025-03-04 06:45:48,918 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 49 of 58 statements. [2025-03-04 06:45:48,918 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-04 06:45:48,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:49,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:49,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118747088] [2025-03-04 06:45:49,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118747088] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:49,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:49,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:49,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846491523] [2025-03-04 06:45:49,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:49,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:49,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:49,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:49,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:49,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:49,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 199 transitions, 2147 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:49,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:49,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:49,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:49,829 INFO L124 PetriNetUnfolderBase]: 212/684 cut-off events. [2025-03-04 06:45:49,829 INFO L125 PetriNetUnfolderBase]: For 8795/8835 co-relation queries the response was YES. [2025-03-04 06:45:49,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 684 events. 212/684 cut-off events. For 8795/8835 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3704 event pairs, 27 based on Foata normal form. 44/726 useless extension candidates. Maximal degree in co-relation 3807. Up to 355 conditions per place. [2025-03-04 06:45:49,834 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 116 selfloop transitions, 58 changer transitions 26/246 dead transitions. [2025-03-04 06:45:49,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 246 transitions, 3001 flow [2025-03-04 06:45:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 842 transitions. [2025-03-04 06:45:49,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930041152263374 [2025-03-04 06:45:49,836 INFO L175 Difference]: Start difference. First operand has 186 places, 199 transitions, 2147 flow. Second operand 15 states and 842 transitions. [2025-03-04 06:45:49,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 246 transitions, 3001 flow [2025-03-04 06:45:49,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 246 transitions, 2899 flow, removed 23 selfloop flow, removed 11 redundant places. [2025-03-04 06:45:49,859 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 2271 flow [2025-03-04 06:45:49,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2068, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2271, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2025-03-04 06:45:49,859 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 109 predicate places. [2025-03-04 06:45:49,859 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 2271 flow [2025-03-04 06:45:49,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:49,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:49,860 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:49,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 06:45:49,860 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:49,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:49,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1036623203, now seen corresponding path program 11 times [2025-03-04 06:45:49,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:49,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078200447] [2025-03-04 06:45:49,860 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:49,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:49,866 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:49,869 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:49,869 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:49,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:50,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078200447] [2025-03-04 06:45:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078200447] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406349865] [2025-03-04 06:45:50,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:50,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:50,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:50,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:50,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:50,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:50,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 2271 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:50,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:50,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:50,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:50,773 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2025-03-04 06:45:50,773 INFO L125 PetriNetUnfolderBase]: For 12688/12728 co-relation queries the response was YES. [2025-03-04 06:45:50,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 796 events. 250/796 cut-off events. For 12688/12728 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4569 event pairs, 33 based on Foata normal form. 31/825 useless extension candidates. Maximal degree in co-relation 4747. Up to 359 conditions per place. [2025-03-04 06:45:50,781 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 153 selfloop transitions, 62 changer transitions 13/274 dead transitions. [2025-03-04 06:45:50,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 274 transitions, 3705 flow [2025-03-04 06:45:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2025-03-04 06:45:50,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2025-03-04 06:45:50,783 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 2271 flow. Second operand 15 states and 838 transitions. [2025-03-04 06:45:50,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 274 transitions, 3705 flow [2025-03-04 06:45:50,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 274 transitions, 3471 flow, removed 53 selfloop flow, removed 14 redundant places. [2025-03-04 06:45:50,816 INFO L231 Difference]: Finished difference. Result has 196 places, 222 transitions, 2675 flow [2025-03-04 06:45:50,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2675, PETRI_PLACES=196, PETRI_TRANSITIONS=222} [2025-03-04 06:45:50,816 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 113 predicate places. [2025-03-04 06:45:50,816 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 222 transitions, 2675 flow [2025-03-04 06:45:50,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:50,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:50,817 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:50,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:45:50,817 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:50,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash 666751813, now seen corresponding path program 12 times [2025-03-04 06:45:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654155000] [2025-03-04 06:45:50,817 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:45:50,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:50,823 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:50,825 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:50,825 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:45:50,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:51,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654155000] [2025-03-04 06:45:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654155000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:51,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:51,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:51,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251970171] [2025-03-04 06:45:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:51,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:51,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:51,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:51,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:51,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:51,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 222 transitions, 2675 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:51,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:51,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:51,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:51,721 INFO L124 PetriNetUnfolderBase]: 256/834 cut-off events. [2025-03-04 06:45:51,721 INFO L125 PetriNetUnfolderBase]: For 13097/13138 co-relation queries the response was YES. [2025-03-04 06:45:51,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 834 events. 256/834 cut-off events. For 13097/13138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4991 event pairs, 36 based on Foata normal form. 36/865 useless extension candidates. Maximal degree in co-relation 5063. Up to 444 conditions per place. [2025-03-04 06:45:51,726 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 60 changer transitions 23/267 dead transitions. [2025-03-04 06:45:51,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 267 transitions, 3657 flow [2025-03-04 06:45:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2025-03-04 06:45:51,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2025-03-04 06:45:51,727 INFO L175 Difference]: Start difference. First operand has 196 places, 222 transitions, 2675 flow. Second operand 15 states and 836 transitions. [2025-03-04 06:45:51,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 267 transitions, 3657 flow [2025-03-04 06:45:51,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 267 transitions, 3499 flow, removed 71 selfloop flow, removed 7 redundant places. [2025-03-04 06:45:51,761 INFO L231 Difference]: Finished difference. Result has 207 places, 227 transitions, 2771 flow [2025-03-04 06:45:51,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2771, PETRI_PLACES=207, PETRI_TRANSITIONS=227} [2025-03-04 06:45:51,762 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 124 predicate places. [2025-03-04 06:45:51,762 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 227 transitions, 2771 flow [2025-03-04 06:45:51,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:51,762 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:51,762 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:51,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 06:45:51,762 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:51,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash 670684887, now seen corresponding path program 13 times [2025-03-04 06:45:51,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:51,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072723294] [2025-03-04 06:45:51,763 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:45:51,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:51,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:51,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:51,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:51,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:51,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:51,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072723294] [2025-03-04 06:45:51,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072723294] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:51,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:51,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:51,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595937219] [2025-03-04 06:45:51,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:51,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:51,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:51,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:52,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:52,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 227 transitions, 2771 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:52,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:52,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:52,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:52,828 INFO L124 PetriNetUnfolderBase]: 245/810 cut-off events. [2025-03-04 06:45:52,828 INFO L125 PetriNetUnfolderBase]: For 13695/13731 co-relation queries the response was YES. [2025-03-04 06:45:52,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4979 conditions, 810 events. 245/810 cut-off events. For 13695/13731 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4795 event pairs, 36 based on Foata normal form. 35/837 useless extension candidates. Maximal degree in co-relation 4912. Up to 383 conditions per place. [2025-03-04 06:45:52,834 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 139 selfloop transitions, 67 changer transitions 26/278 dead transitions. [2025-03-04 06:45:52,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 3896 flow [2025-03-04 06:45:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 837 transitions. [2025-03-04 06:45:52,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2025-03-04 06:45:52,836 INFO L175 Difference]: Start difference. First operand has 207 places, 227 transitions, 2771 flow. Second operand 15 states and 837 transitions. [2025-03-04 06:45:52,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 3896 flow [2025-03-04 06:45:52,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 278 transitions, 3786 flow, removed 31 selfloop flow, removed 11 redundant places. [2025-03-04 06:45:52,881 INFO L231 Difference]: Finished difference. Result has 215 places, 227 transitions, 2911 flow [2025-03-04 06:45:52,881 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2700, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2911, PETRI_PLACES=215, PETRI_TRANSITIONS=227} [2025-03-04 06:45:52,881 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 132 predicate places. [2025-03-04 06:45:52,882 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 227 transitions, 2911 flow [2025-03-04 06:45:52,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:52,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:52,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:52,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 06:45:52,882 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:52,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1756442945, now seen corresponding path program 14 times [2025-03-04 06:45:52,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657663708] [2025-03-04 06:45:52,883 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:52,889 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:52,892 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:52,892 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:52,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:53,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:53,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657663708] [2025-03-04 06:45:53,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657663708] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:53,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:53,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864237804] [2025-03-04 06:45:53,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:53,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:53,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:53,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:53,459 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:53,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 227 transitions, 2911 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:53,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:53,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:53,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:53,772 INFO L124 PetriNetUnfolderBase]: 230/778 cut-off events. [2025-03-04 06:45:53,772 INFO L125 PetriNetUnfolderBase]: For 13615/13655 co-relation queries the response was YES. [2025-03-04 06:45:53,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 778 events. 230/778 cut-off events. For 13615/13655 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4586 event pairs, 38 based on Foata normal form. 27/795 useless extension candidates. Maximal degree in co-relation 4778. Up to 443 conditions per place. [2025-03-04 06:45:53,777 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 137 selfloop transitions, 55 changer transitions 15/253 dead transitions. [2025-03-04 06:45:53,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 3622 flow [2025-03-04 06:45:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 06:45:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 06:45:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2025-03-04 06:45:53,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.681657848324515 [2025-03-04 06:45:53,778 INFO L175 Difference]: Start difference. First operand has 215 places, 227 transitions, 2911 flow. Second operand 14 states and 773 transitions. [2025-03-04 06:45:53,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 3622 flow [2025-03-04 06:45:53,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 253 transitions, 3475 flow, removed 56 selfloop flow, removed 8 redundant places. [2025-03-04 06:45:53,816 INFO L231 Difference]: Finished difference. Result has 221 places, 228 transitions, 2930 flow [2025-03-04 06:45:53,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2930, PETRI_PLACES=221, PETRI_TRANSITIONS=228} [2025-03-04 06:45:53,817 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 138 predicate places. [2025-03-04 06:45:53,817 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 228 transitions, 2930 flow [2025-03-04 06:45:53,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:53,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:53,817 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:53,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 06:45:53,817 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:53,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:53,818 INFO L85 PathProgramCache]: Analyzing trace with hash -490304565, now seen corresponding path program 15 times [2025-03-04 06:45:53,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:53,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430655419] [2025-03-04 06:45:53,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:53,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:53,826 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 58 statements into 1 equivalence classes. [2025-03-04 06:45:53,828 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 06:45:53,828 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:53,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:54,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:54,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430655419] [2025-03-04 06:45:54,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430655419] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:54,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:54,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125764484] [2025-03-04 06:45:54,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:54,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:54,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:54,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:54,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:54,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:54,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 228 transitions, 2930 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:54,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:54,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:54,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:54,691 INFO L124 PetriNetUnfolderBase]: 221/754 cut-off events. [2025-03-04 06:45:54,691 INFO L125 PetriNetUnfolderBase]: For 13564/13594 co-relation queries the response was YES. [2025-03-04 06:45:54,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 754 events. 221/754 cut-off events. For 13564/13594 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4394 event pairs, 38 based on Foata normal form. 28/769 useless extension candidates. Maximal degree in co-relation 4566. Up to 408 conditions per place. [2025-03-04 06:45:54,696 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 135 selfloop transitions, 55 changer transitions 29/265 dead transitions. [2025-03-04 06:45:54,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 265 transitions, 3835 flow [2025-03-04 06:45:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 06:45:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 06:45:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 831 transitions. [2025-03-04 06:45:54,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6839506172839506 [2025-03-04 06:45:54,697 INFO L175 Difference]: Start difference. First operand has 221 places, 228 transitions, 2930 flow. Second operand 15 states and 831 transitions. [2025-03-04 06:45:54,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 265 transitions, 3835 flow [2025-03-04 06:45:54,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 265 transitions, 3678 flow, removed 32 selfloop flow, removed 12 redundant places. [2025-03-04 06:45:54,748 INFO L231 Difference]: Finished difference. Result has 227 places, 221 transitions, 2801 flow [2025-03-04 06:45:54,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2805, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2801, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2025-03-04 06:45:54,749 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 144 predicate places. [2025-03-04 06:45:54,749 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 2801 flow [2025-03-04 06:45:54,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:54,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:54,749 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:54,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 06:45:54,749 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:54,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:54,750 INFO L85 PathProgramCache]: Analyzing trace with hash 905020589, now seen corresponding path program 1 times [2025-03-04 06:45:54,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:54,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268890489] [2025-03-04 06:45:54,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:54,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:54,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 06:45:54,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 06:45:54,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:54,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:54,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:54,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268890489] [2025-03-04 06:45:54,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268890489] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:54,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:54,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876565860] [2025-03-04 06:45:54,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:54,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:54,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:54,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:54,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:55,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:55,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 2801 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:55,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:55,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:55,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:55,704 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2025-03-04 06:45:55,704 INFO L125 PetriNetUnfolderBase]: For 12030/12056 co-relation queries the response was YES. [2025-03-04 06:45:55,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4330 conditions, 740 events. 208/740 cut-off events. For 12030/12056 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4323 event pairs, 16 based on Foata normal form. 13/749 useless extension candidates. Maximal degree in co-relation 4257. Up to 223 conditions per place. [2025-03-04 06:45:55,709 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2025-03-04 06:45:55,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 262 transitions, 3727 flow [2025-03-04 06:45:55,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 06:45:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 06:45:55,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2025-03-04 06:45:55,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2025-03-04 06:45:55,711 INFO L175 Difference]: Start difference. First operand has 227 places, 221 transitions, 2801 flow. Second operand 18 states and 977 transitions. [2025-03-04 06:45:55,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 262 transitions, 3727 flow [2025-03-04 06:45:55,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 262 transitions, 3614 flow, removed 40 selfloop flow, removed 12 redundant places. [2025-03-04 06:45:55,759 INFO L231 Difference]: Finished difference. Result has 224 places, 210 transitions, 2657 flow [2025-03-04 06:45:55,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2657, PETRI_PLACES=224, PETRI_TRANSITIONS=210} [2025-03-04 06:45:55,759 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 141 predicate places. [2025-03-04 06:45:55,759 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 210 transitions, 2657 flow [2025-03-04 06:45:55,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:55,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:55,760 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:55,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-04 06:45:55,760 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:55,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:55,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1357399037, now seen corresponding path program 2 times [2025-03-04 06:45:55,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:55,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887692028] [2025-03-04 06:45:55,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:55,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:55,766 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 1 equivalence classes. [2025-03-04 06:45:55,768 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 06:45:55,769 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:55,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:55,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:55,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887692028] [2025-03-04 06:45:55,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887692028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:55,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:55,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801152250] [2025-03-04 06:45:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:55,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:55,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:55,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:55,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:56,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:56,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 210 transitions, 2657 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:56,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:56,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:56,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:56,620 INFO L124 PetriNetUnfolderBase]: 195/717 cut-off events. [2025-03-04 06:45:56,620 INFO L125 PetriNetUnfolderBase]: For 12780/12806 co-relation queries the response was YES. [2025-03-04 06:45:56,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 717 events. 195/717 cut-off events. For 12780/12806 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4182 event pairs, 16 based on Foata normal form. 13/726 useless extension candidates. Maximal degree in co-relation 4108. Up to 223 conditions per place. [2025-03-04 06:45:56,625 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2025-03-04 06:45:56,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 252 transitions, 3632 flow [2025-03-04 06:45:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 06:45:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-04 06:45:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2025-03-04 06:45:56,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2025-03-04 06:45:56,626 INFO L175 Difference]: Start difference. First operand has 224 places, 210 transitions, 2657 flow. Second operand 20 states and 1077 transitions. [2025-03-04 06:45:56,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 252 transitions, 3632 flow [2025-03-04 06:45:56,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 252 transitions, 3425 flow, removed 34 selfloop flow, removed 17 redundant places. [2025-03-04 06:45:56,664 INFO L231 Difference]: Finished difference. Result has 228 places, 198 transitions, 2431 flow [2025-03-04 06:45:56,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2512, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2431, PETRI_PLACES=228, PETRI_TRANSITIONS=198} [2025-03-04 06:45:56,664 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 145 predicate places. [2025-03-04 06:45:56,664 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 198 transitions, 2431 flow [2025-03-04 06:45:56,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:56,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:56,665 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:56,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-04 06:45:56,665 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2025-03-04 06:45:56,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:56,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1120277057, now seen corresponding path program 3 times [2025-03-04 06:45:56,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:56,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871763202] [2025-03-04 06:45:56,665 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:56,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:56,672 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 1 equivalence classes. [2025-03-04 06:45:56,674 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 06:45:56,674 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:56,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:56,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871763202] [2025-03-04 06:45:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871763202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:56,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:56,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 06:45:56,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762766960] [2025-03-04 06:45:56,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:56,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 06:45:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:56,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 06:45:56,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-04 06:45:57,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2025-03-04 06:45:57,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 198 transitions, 2431 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:57,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:57,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2025-03-04 06:45:57,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:57,543 INFO L124 PetriNetUnfolderBase]: 155/602 cut-off events. [2025-03-04 06:45:57,543 INFO L125 PetriNetUnfolderBase]: For 10891/10917 co-relation queries the response was YES. [2025-03-04 06:45:57,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 602 events. 155/602 cut-off events. For 10891/10917 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3326 event pairs, 2 based on Foata normal form. 43/645 useless extension candidates. Maximal degree in co-relation 3326. Up to 159 conditions per place. [2025-03-04 06:45:57,546 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2025-03-04 06:45:57,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 260 transitions, 3520 flow [2025-03-04 06:45:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-04 06:45:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-04 06:45:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2025-03-04 06:45:57,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2025-03-04 06:45:57,547 INFO L175 Difference]: Start difference. First operand has 228 places, 198 transitions, 2431 flow. Second operand 24 states and 1282 transitions. [2025-03-04 06:45:57,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 260 transitions, 3520 flow [2025-03-04 06:45:57,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 260 transitions, 3255 flow, removed 47 selfloop flow, removed 22 redundant places. [2025-03-04 06:45:57,577 INFO L231 Difference]: Finished difference. Result has 214 places, 0 transitions, 0 flow [2025-03-04 06:45:57,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=214, PETRI_TRANSITIONS=0} [2025-03-04 06:45:57,577 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 131 predicate places. [2025-03-04 06:45:57,577 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 0 transitions, 0 flow [2025-03-04 06:45:57,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:57,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2025-03-04 06:45:57,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-04 06:45:57,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2025-03-04 06:45:57,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2025-03-04 06:45:57,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-04 06:45:57,580 INFO L422 BasicCegarLoop]: Path program histogram: [15, 3, 1, 1, 1, 1] [2025-03-04 06:45:57,583 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:45:57,583 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:45:57,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:45:57 BasicIcfg [2025-03-04 06:45:57,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:45:57,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:45:57,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:45:57,587 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:45:57,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:35" (3/4) ... [2025-03-04 06:45:57,588 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 06:45:57,590 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 06:45:57,592 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-04 06:45:57,592 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 06:45:57,592 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 06:45:57,638 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:45:57,638 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:45:57,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:45:57,638 INFO L158 Benchmark]: Toolchain (without parser) took 23107.54ms. Allocated memory was 167.8MB in the beginning and 545.3MB in the end (delta: 377.5MB). Free memory was 122.3MB in the beginning and 234.1MB in the end (delta: -111.8MB). Peak memory consumption was 266.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,639 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:45:57,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.77ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 94.3MB in the end (delta: 28.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.99ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 92.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,639 INFO L158 Benchmark]: Boogie Preprocessor took 20.09ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 91.4MB in the end (delta: 765.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:45:57,639 INFO L158 Benchmark]: IcfgBuilder took 322.97ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 75.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,640 INFO L158 Benchmark]: TraceAbstraction took 22301.50ms. Allocated memory was 167.8MB in the beginning and 545.3MB in the end (delta: 377.5MB). Free memory was 75.4MB in the beginning and 238.4MB in the end (delta: -163.0MB). Peak memory consumption was 216.1MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,640 INFO L158 Benchmark]: Witness Printer took 51.22ms. Allocated memory is still 545.3MB. Free memory was 238.4MB in the beginning and 234.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:45:57,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.77ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 94.3MB in the end (delta: 28.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.99ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 92.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.09ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 91.4MB in the end (delta: 765.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 322.97ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 75.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22301.50ms. Allocated memory was 167.8MB in the beginning and 545.3MB in the end (delta: 377.5MB). Free memory was 75.4MB in the beginning and 238.4MB in the end (delta: -163.0MB). Peak memory consumption was 216.1MB. Max. memory is 16.1GB. * Witness Printer took 51.22ms. Allocated memory is still 545.3MB. Free memory was 238.4MB in the beginning and 234.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.2s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7931 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6856 mSDsluCounter, 14553 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13923 mSDsCounter, 650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26580 IncrementalHoareTripleChecker+Invalid, 27230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 650 mSolverCounterUnsat, 630 mSDtfsCounter, 26580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 463 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2930occurred in iteration=18, InterpolantAutomatonStates: 313, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 1278 NumberOfCodeBlocks, 1260 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1256 ConstructedInterpolants, 0 QuantifiedInterpolants, 8729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 06:45:57,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE