./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed 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_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:57:28,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:57:28,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:57:28,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:57:28,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:57:28,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:57:28,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:57:28,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:57:28,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:57:28,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:57:28,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:57:28,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:57:28,686 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:57:28,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:57:28,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:57:28,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:57:28,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:28,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:57:28,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:57:28,689 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 -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2025-03-08 21:57:28,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:57:28,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:57:28,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:57:28,897 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:57:28,897 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:57:28,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-03-08 21:57:29,997 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662519644/0138b34fa37149ada301e446c05d2522/FLAG7a815c3c6 [2025-03-08 21:57:30,258 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:57:30,259 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-03-08 21:57:30,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662519644/0138b34fa37149ada301e446c05d2522/FLAG7a815c3c6 [2025-03-08 21:57:30,284 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662519644/0138b34fa37149ada301e446c05d2522 [2025-03-08 21:57:30,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:57:30,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:57:30,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:30,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:57:30,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:57:30,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c24ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30, skipping insertion in model container [2025-03-08 21:57:30,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:57:30,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:30,602 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:57:30,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:30,683 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:57:30,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30 WrapperNode [2025-03-08 21:57:30,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:30,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:30,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:57:30,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:57:30,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,720 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2025-03-08 21:57:30,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:30,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:57:30,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:57:30,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:57:30,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,743 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:57:30,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:57:30,754 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:57:30,754 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:57:30,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (1/1) ... [2025-03-08 21:57:30,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:30,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:30,787 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) [2025-03-08 21:57:30,789 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 [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:57:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 21:57:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 21:57:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:57:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:57:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:57:30,804 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:57:30,895 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:57:30,896 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:57:31,144 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:57:31,144 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:57:31,165 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:57:31,165 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:57:31,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:31 BoogieIcfgContainer [2025-03-08 21:57:31,165 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:57:31,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:57:31,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:57:31,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:57:31,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:57:30" (1/3) ... [2025-03-08 21:57:31,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab106e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:31, skipping insertion in model container [2025-03-08 21:57:31,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:30" (2/3) ... [2025-03-08 21:57:31,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab106e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:31, skipping insertion in model container [2025-03-08 21:57:31,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:31" (3/3) ... [2025-03-08 21:57:31,173 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2025-03-08 21:57:31,183 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:57:31,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_03-funloop_simple.i that has 2 procedures, 176 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-08 21:57:31,185 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:57:31,238 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:57:31,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 178 transitions, 360 flow [2025-03-08 21:57:31,344 INFO L124 PetriNetUnfolderBase]: 3/177 cut-off events. [2025-03-08 21:57:31,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:31,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 177 events. 3/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 217 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2025-03-08 21:57:31,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 178 transitions, 360 flow [2025-03-08 21:57:31,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 177 transitions, 357 flow [2025-03-08 21:57:31,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:57:31,372 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;@181a17c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:57:31,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-08 21:57:31,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:57:31,392 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2025-03-08 21:57:31,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:31,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:31,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:31,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:31,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1905154215, now seen corresponding path program 1 times [2025-03-08 21:57:31,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:31,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646457056] [2025-03-08 21:57:31,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:31,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-08 21:57:31,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-08 21:57:31,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:31,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:31,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646457056] [2025-03-08 21:57:31,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646457056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:31,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:57:31,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655824057] [2025-03-08 21:57:31,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:31,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:31,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:31,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:31,728 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-03-08 21:57:31,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 177 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:31,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:31,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-03-08 21:57:31,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:31,807 INFO L124 PetriNetUnfolderBase]: 12/295 cut-off events. [2025-03-08 21:57:31,807 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:31,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 295 events. 12/295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 689 event pairs, 6 based on Foata normal form. 1/277 useless extension candidates. Maximal degree in co-relation 231. Up to 27 conditions per place. [2025-03-08 21:57:31,809 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2025-03-08 21:57:31,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2025-03-08 21:57:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2025-03-08 21:57:31,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9625468164794008 [2025-03-08 21:57:31,820 INFO L175 Difference]: Start difference. First operand has 178 places, 177 transitions, 357 flow. Second operand 3 states and 514 transitions. [2025-03-08 21:57:31,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2025-03-08 21:57:31,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:31,827 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2025-03-08 21:57:31,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2025-03-08 21:57:31,834 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2025-03-08 21:57:31,834 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2025-03-08 21:57:31,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:31,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:31,835 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:31,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:57:31,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:31,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -224183792, now seen corresponding path program 1 times [2025-03-08 21:57:31,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:31,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975900487] [2025-03-08 21:57:31,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:31,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-08 21:57:31,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-08 21:57:31,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:31,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:32,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975900487] [2025-03-08 21:57:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975900487] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:32,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811282685] [2025-03-08 21:57:32,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:32,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:32,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:32,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:32,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 21:57:32,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-08 21:57:32,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-08 21:57:32,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:32,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:32,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 21:57:32,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 21:57:32,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 21:57:32,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811282685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:32,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 21:57:32,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 21:57:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968534943] [2025-03-08 21:57:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:32,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:32,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:32,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:32,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:32,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-03-08 21:57:32,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:32,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:32,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-03-08 21:57:32,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:32,215 INFO L124 PetriNetUnfolderBase]: 29/463 cut-off events. [2025-03-08 21:57:32,215 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:32,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 463 events. 29/463 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1585 event pairs, 8 based on Foata normal form. 3/434 useless extension candidates. Maximal degree in co-relation 451. Up to 39 conditions per place. [2025-03-08 21:57:32,221 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2025-03-08 21:57:32,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2025-03-08 21:57:32,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2025-03-08 21:57:32,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9700374531835206 [2025-03-08 21:57:32,223 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2025-03-08 21:57:32,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2025-03-08 21:57:32,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:32,227 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2025-03-08 21:57:32,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2025-03-08 21:57:32,228 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2025-03-08 21:57:32,229 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2025-03-08 21:57:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:32,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:32,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:32,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 21:57:32,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:32,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:32,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:32,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1846849665, now seen corresponding path program 1 times [2025-03-08 21:57:32,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:32,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226661579] [2025-03-08 21:57:32,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:32,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:32,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-08 21:57:32,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-08 21:57:32,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:32,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:32,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:32,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226661579] [2025-03-08 21:57:32,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226661579] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173679532] [2025-03-08 21:57:32,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:32,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:32,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:32,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:32,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 21:57:32,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-08 21:57:32,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-08 21:57:32,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:32,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:32,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 21:57:32,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:32,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:32,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:32,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173679532] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:32,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:32,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-08 21:57:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115387591] [2025-03-08 21:57:32,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:32,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:57:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:32,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:57:32,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 21:57:32,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-08 21:57:32,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:32,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:32,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-08 21:57:32,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:32,876 INFO L124 PetriNetUnfolderBase]: 18/409 cut-off events. [2025-03-08 21:57:32,876 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:32,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 409 events. 18/409 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1046 event pairs, 10 based on Foata normal form. 2/383 useless extension candidates. Maximal degree in co-relation 366. Up to 39 conditions per place. [2025-03-08 21:57:32,878 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2025-03-08 21:57:32,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2025-03-08 21:57:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:57:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:57:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2025-03-08 21:57:32,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2025-03-08 21:57:32,888 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2025-03-08 21:57:32,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2025-03-08 21:57:32,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:32,892 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2025-03-08 21:57:32,894 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2025-03-08 21:57:32,894 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2025-03-08 21:57:32,895 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2025-03-08 21:57:32,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:32,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:32,896 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:32,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 21:57:33,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-08 21:57:33,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:33,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1244217631, now seen corresponding path program 2 times [2025-03-08 21:57:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:33,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777909377] [2025-03-08 21:57:33,102 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:33,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-08 21:57:33,125 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-08 21:57:33,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:33,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 21:57:33,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777909377] [2025-03-08 21:57:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777909377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755103666] [2025-03-08 21:57:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:33,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:33,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:33,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:33,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:33,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:33,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:33,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:33,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:33,870 INFO L124 PetriNetUnfolderBase]: 319/1503 cut-off events. [2025-03-08 21:57:33,870 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-08 21:57:33,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 1503 events. 319/1503 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9673 event pairs, 148 based on Foata normal form. 0/1413 useless extension candidates. Maximal degree in co-relation 2074. Up to 516 conditions per place. [2025-03-08 21:57:33,875 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 34 selfloop transitions, 22 changer transitions 0/214 dead transitions. [2025-03-08 21:57:33,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 214 transitions, 596 flow [2025-03-08 21:57:33,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:33,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2025-03-08 21:57:33,879 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.901685393258427 [2025-03-08 21:57:33,879 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 963 transitions. [2025-03-08 21:57:33,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 214 transitions, 596 flow [2025-03-08 21:57:33,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 214 transitions, 590 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:33,883 INFO L231 Difference]: Finished difference. Result has 201 places, 206 transitions, 570 flow [2025-03-08 21:57:33,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=201, PETRI_TRANSITIONS=206} [2025-03-08 21:57:33,885 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2025-03-08 21:57:33,885 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 206 transitions, 570 flow [2025-03-08 21:57:33,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:33,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:33,886 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:33,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:57:33,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:33,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 635844127, now seen corresponding path program 1 times [2025-03-08 21:57:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:33,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725885223] [2025-03-08 21:57:33,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:33,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 21:57:33,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 21:57:33,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:33,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:34,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:34,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725885223] [2025-03-08 21:57:34,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725885223] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:34,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035552087] [2025-03-08 21:57:34,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:34,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:34,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:34,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 21:57:34,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 21:57:34,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 21:57:34,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:34,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:34,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 21:57:34,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:34,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035552087] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:34,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:34,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-08 21:57:34,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883760745] [2025-03-08 21:57:34,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:34,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 21:57:34,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:34,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 21:57:34,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-08 21:57:34,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-08 21:57:34,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 206 transitions, 570 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:34,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:34,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-08 21:57:34,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:34,566 INFO L124 PetriNetUnfolderBase]: 112/1029 cut-off events. [2025-03-08 21:57:34,566 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-08 21:57:34,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 1029 events. 112/1029 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5190 event pairs, 20 based on Foata normal form. 4/965 useless extension candidates. Maximal degree in co-relation 1318. Up to 125 conditions per place. [2025-03-08 21:57:34,572 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 18 selfloop transitions, 21 changer transitions 0/224 dead transitions. [2025-03-08 21:57:34,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 224 transitions, 736 flow [2025-03-08 21:57:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-08 21:57:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-08 21:57:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2025-03-08 21:57:34,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9328517924023542 [2025-03-08 21:57:34,578 INFO L175 Difference]: Start difference. First operand has 201 places, 206 transitions, 570 flow. Second operand 21 states and 3487 transitions. [2025-03-08 21:57:34,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 224 transitions, 736 flow [2025-03-08 21:57:34,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 224 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:34,585 INFO L231 Difference]: Finished difference. Result has 226 places, 219 transitions, 700 flow [2025-03-08 21:57:34,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=700, PETRI_PLACES=226, PETRI_TRANSITIONS=219} [2025-03-08 21:57:34,587 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2025-03-08 21:57:34,587 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 219 transitions, 700 flow [2025-03-08 21:57:34,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:34,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:34,590 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:34,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 21:57:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:34,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:34,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash -410025633, now seen corresponding path program 2 times [2025-03-08 21:57:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173576292] [2025-03-08 21:57:34,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:34,802 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-08 21:57:34,809 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-08 21:57:34,809 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:34,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-08 21:57:35,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173576292] [2025-03-08 21:57:35,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173576292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:35,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:35,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:35,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730951480] [2025-03-08 21:57:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:35,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:35,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:35,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:35,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:35,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:35,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 219 transitions, 700 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:35,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:35,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:35,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:35,495 INFO L124 PetriNetUnfolderBase]: 461/2276 cut-off events. [2025-03-08 21:57:35,495 INFO L125 PetriNetUnfolderBase]: For 409/439 co-relation queries the response was YES. [2025-03-08 21:57:35,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3871 conditions, 2276 events. 461/2276 cut-off events. For 409/439 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 16356 event pairs, 172 based on Foata normal form. 5/2149 useless extension candidates. Maximal degree in co-relation 3675. Up to 758 conditions per place. [2025-03-08 21:57:35,506 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 51 selfloop transitions, 46 changer transitions 0/272 dead transitions. [2025-03-08 21:57:35,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1042 flow [2025-03-08 21:57:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:35,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2025-03-08 21:57:35,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-08 21:57:35,508 INFO L175 Difference]: Start difference. First operand has 226 places, 219 transitions, 700 flow. Second operand 6 states and 979 transitions. [2025-03-08 21:57:35,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1042 flow [2025-03-08 21:57:35,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1018 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-08 21:57:35,515 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2025-03-08 21:57:35,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2025-03-08 21:57:35,517 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2025-03-08 21:57:35,517 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2025-03-08 21:57:35,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:35,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:35,518 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:35,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:57:35,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:35,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1395060748, now seen corresponding path program 1 times [2025-03-08 21:57:35,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:35,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382948326] [2025-03-08 21:57:35,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:35,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:35,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 21:57:35,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 21:57:35,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:35,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:35,789 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:35,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:35,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382948326] [2025-03-08 21:57:35,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382948326] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:35,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097098757] [2025-03-08 21:57:35,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:35,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:35,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:35,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:35,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 21:57:35,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 21:57:35,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 21:57:35,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:35,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:35,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 21:57:35,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:35,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:36,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097098757] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:36,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:36,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-08 21:57:36,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753631370] [2025-03-08 21:57:36,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:36,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-08 21:57:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:36,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-08 21:57:36,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-08 21:57:36,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-08 21:57:36,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:36,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:36,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-08 21:57:36,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:36,578 INFO L124 PetriNetUnfolderBase]: 252/1636 cut-off events. [2025-03-08 21:57:36,578 INFO L125 PetriNetUnfolderBase]: For 592/624 co-relation queries the response was YES. [2025-03-08 21:57:36,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 1636 events. 252/1636 cut-off events. For 592/624 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10684 event pairs, 36 based on Foata normal form. 13/1567 useless extension candidates. Maximal degree in co-relation 2726. Up to 202 conditions per place. [2025-03-08 21:57:36,585 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2025-03-08 21:57:36,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2025-03-08 21:57:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-08 21:57:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-08 21:57:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2025-03-08 21:57:36,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9314606741573034 [2025-03-08 21:57:36,592 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2025-03-08 21:57:36,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2025-03-08 21:57:36,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:36,599 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2025-03-08 21:57:36,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2025-03-08 21:57:36,600 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2025-03-08 21:57:36,600 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2025-03-08 21:57:36,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:36,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:36,602 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:36,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 21:57:36,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:36,806 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:36,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1135647299, now seen corresponding path program 2 times [2025-03-08 21:57:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:36,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889891969] [2025-03-08 21:57:36,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:36,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-08 21:57:36,823 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-08 21:57:36,823 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:36,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:37,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:37,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889891969] [2025-03-08 21:57:37,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889891969] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:37,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:37,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245594497] [2025-03-08 21:57:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:37,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:37,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:37,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:37,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-03-08 21:57:37,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:37,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:37,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-03-08 21:57:37,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:37,570 INFO L124 PetriNetUnfolderBase]: 918/3214 cut-off events. [2025-03-08 21:57:37,570 INFO L125 PetriNetUnfolderBase]: For 1990/2082 co-relation queries the response was YES. [2025-03-08 21:57:37,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7339 conditions, 3214 events. 918/3214 cut-off events. For 1990/2082 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 22871 event pairs, 283 based on Foata normal form. 19/3079 useless extension candidates. Maximal degree in co-relation 7061. Up to 1571 conditions per place. [2025-03-08 21:57:37,589 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 100 selfloop transitions, 57 changer transitions 0/329 dead transitions. [2025-03-08 21:57:37,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 329 transitions, 1740 flow [2025-03-08 21:57:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2025-03-08 21:57:37,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8698501872659176 [2025-03-08 21:57:37,591 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 929 transitions. [2025-03-08 21:57:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 329 transitions, 1740 flow [2025-03-08 21:57:37,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 329 transitions, 1694 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-08 21:57:37,603 INFO L231 Difference]: Finished difference. Result has 255 places, 321 transitions, 1634 flow [2025-03-08 21:57:37,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1634, PETRI_PLACES=255, PETRI_TRANSITIONS=321} [2025-03-08 21:57:37,604 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2025-03-08 21:57:37,604 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 321 transitions, 1634 flow [2025-03-08 21:57:37,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:37,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:37,604 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:37,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 21:57:37,605 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:37,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1525984212, now seen corresponding path program 1 times [2025-03-08 21:57:37,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:37,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780437722] [2025-03-08 21:57:37,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:37,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-08 21:57:37,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-08 21:57:37,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:37,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:37,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:37,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780437722] [2025-03-08 21:57:37,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780437722] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:37,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:37,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:37,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376055207] [2025-03-08 21:57:37,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:37,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:37,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:37,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:38,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-03-08 21:57:38,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 321 transitions, 1634 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:38,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:38,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-03-08 21:57:38,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:38,650 INFO L124 PetriNetUnfolderBase]: 1259/4379 cut-off events. [2025-03-08 21:57:38,650 INFO L125 PetriNetUnfolderBase]: For 4859/4989 co-relation queries the response was YES. [2025-03-08 21:57:38,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11258 conditions, 4379 events. 1259/4379 cut-off events. For 4859/4989 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 33840 event pairs, 313 based on Foata normal form. 40/4238 useless extension candidates. Maximal degree in co-relation 10997. Up to 2094 conditions per place. [2025-03-08 21:57:38,674 INFO L140 encePairwiseOnDemand]: 155/178 looper letters, 137 selfloop transitions, 103 changer transitions 0/414 dead transitions. [2025-03-08 21:57:38,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2564 flow [2025-03-08 21:57:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2025-03-08 21:57:38,678 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.899812734082397 [2025-03-08 21:57:38,678 INFO L175 Difference]: Start difference. First operand has 255 places, 321 transitions, 1634 flow. Second operand 6 states and 961 transitions. [2025-03-08 21:57:38,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2564 flow [2025-03-08 21:57:38,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2500 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:38,699 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2486 flow [2025-03-08 21:57:38,700 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2486, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2025-03-08 21:57:38,701 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2025-03-08 21:57:38,701 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2486 flow [2025-03-08 21:57:38,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:38,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:38,702 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:38,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 21:57:38,702 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 346121337, now seen corresponding path program 1 times [2025-03-08 21:57:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:38,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725945642] [2025-03-08 21:57:38,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:38,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-08 21:57:38,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:57:38,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:38,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725945642] [2025-03-08 21:57:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725945642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:39,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:39,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:57:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401519854] [2025-03-08 21:57:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:39,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:57:39,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:39,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:57:39,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:57:40,260 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:40,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2486 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:40,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:40,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:40,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:40,968 INFO L124 PetriNetUnfolderBase]: 1203/4645 cut-off events. [2025-03-08 21:57:40,968 INFO L125 PetriNetUnfolderBase]: For 6288/6434 co-relation queries the response was YES. [2025-03-08 21:57:40,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12793 conditions, 4645 events. 1203/4645 cut-off events. For 6288/6434 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 38551 event pairs, 160 based on Foata normal form. 37/4621 useless extension candidates. Maximal degree in co-relation 12515. Up to 685 conditions per place. [2025-03-08 21:57:41,001 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 71 selfloop transitions, 15 changer transitions 0/464 dead transitions. [2025-03-08 21:57:41,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 464 transitions, 2774 flow [2025-03-08 21:57:41,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:57:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:57:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2025-03-08 21:57:41,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9032459425717853 [2025-03-08 21:57:41,004 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2486 flow. Second operand 9 states and 1447 transitions. [2025-03-08 21:57:41,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 464 transitions, 2774 flow [2025-03-08 21:57:41,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 464 transitions, 2660 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:41,039 INFO L231 Difference]: Finished difference. Result has 280 places, 420 transitions, 2484 flow [2025-03-08 21:57:41,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2484, PETRI_PLACES=280, PETRI_TRANSITIONS=420} [2025-03-08 21:57:41,041 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2025-03-08 21:57:41,041 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 420 transitions, 2484 flow [2025-03-08 21:57:41,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:41,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:41,042 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:41,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 21:57:41,042 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:41,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1824694123, now seen corresponding path program 2 times [2025-03-08 21:57:41,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:41,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776553375] [2025-03-08 21:57:41,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:41,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:41,055 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:57:41,068 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:57:41,069 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:41,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:41,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:41,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776553375] [2025-03-08 21:57:41,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776553375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:41,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:41,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:57:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309740708] [2025-03-08 21:57:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:41,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:57:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:41,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:57:41,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:57:42,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:42,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 420 transitions, 2484 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:42,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:42,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:42,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:43,884 INFO L124 PetriNetUnfolderBase]: 2439/9042 cut-off events. [2025-03-08 21:57:43,884 INFO L125 PetriNetUnfolderBase]: For 12561/12878 co-relation queries the response was YES. [2025-03-08 21:57:43,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25916 conditions, 9042 events. 2439/9042 cut-off events. For 12561/12878 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 85150 event pairs, 305 based on Foata normal form. 97/9001 useless extension candidates. Maximal degree in co-relation 25630. Up to 1448 conditions per place. [2025-03-08 21:57:43,972 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 111 selfloop transitions, 20 changer transitions 2/511 dead transitions. [2025-03-08 21:57:43,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3166 flow [2025-03-08 21:57:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:57:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:57:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2025-03-08 21:57:43,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9032459425717853 [2025-03-08 21:57:43,976 INFO L175 Difference]: Start difference. First operand has 280 places, 420 transitions, 2484 flow. Second operand 9 states and 1447 transitions. [2025-03-08 21:57:43,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3166 flow [2025-03-08 21:57:44,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 511 transitions, 3156 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:44,157 INFO L231 Difference]: Finished difference. Result has 294 places, 437 transitions, 2663 flow [2025-03-08 21:57:44,158 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2482, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2663, PETRI_PLACES=294, PETRI_TRANSITIONS=437} [2025-03-08 21:57:44,158 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 116 predicate places. [2025-03-08 21:57:44,158 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 437 transitions, 2663 flow [2025-03-08 21:57:44,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:44,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:44,159 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:44,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 21:57:44,159 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:44,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1708064931, now seen corresponding path program 3 times [2025-03-08 21:57:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:44,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839943268] [2025-03-08 21:57:44,160 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 21:57:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:44,174 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:57:44,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:57:44,183 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-08 21:57:44,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:44,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839943268] [2025-03-08 21:57:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839943268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:44,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:44,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:57:44,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729695627] [2025-03-08 21:57:44,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:44,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:57:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:44,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:57:44,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:57:45,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:45,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 437 transitions, 2663 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:45,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:45,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:45,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:46,737 INFO L124 PetriNetUnfolderBase]: 2758/10077 cut-off events. [2025-03-08 21:57:46,737 INFO L125 PetriNetUnfolderBase]: For 16469/16888 co-relation queries the response was YES. [2025-03-08 21:57:46,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30343 conditions, 10077 events. 2758/10077 cut-off events. For 16469/16888 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 95597 event pairs, 310 based on Foata normal form. 106/10018 useless extension candidates. Maximal degree in co-relation 30049. Up to 1570 conditions per place. [2025-03-08 21:57:46,786 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 121 selfloop transitions, 22 changer transitions 0/521 dead transitions. [2025-03-08 21:57:46,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 521 transitions, 3447 flow [2025-03-08 21:57:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:57:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:57:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2025-03-08 21:57:46,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2025-03-08 21:57:46,789 INFO L175 Difference]: Start difference. First operand has 294 places, 437 transitions, 2663 flow. Second operand 9 states and 1452 transitions. [2025-03-08 21:57:46,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 521 transitions, 3447 flow [2025-03-08 21:57:46,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3409 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:46,851 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2832 flow [2025-03-08 21:57:46,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2832, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2025-03-08 21:57:46,854 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2025-03-08 21:57:46,854 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2832 flow [2025-03-08 21:57:46,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:46,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:46,855 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:46,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 21:57:46,855 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:46,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash 189097429, now seen corresponding path program 4 times [2025-03-08 21:57:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:46,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104905940] [2025-03-08 21:57:46,856 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 21:57:46,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:46,871 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:57:46,897 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:57:46,901 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-08 21:57:46,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:48,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:48,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104905940] [2025-03-08 21:57:48,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104905940] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:48,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:48,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 21:57:48,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107231805] [2025-03-08 21:57:48,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:48,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 21:57:48,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:48,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 21:57:48,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2025-03-08 21:57:50,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 178 [2025-03-08 21:57:50,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2832 flow. Second operand has 15 states, 15 states have (on average 132.53333333333333) internal successors, (1988), 15 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:50,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:50,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 178 [2025-03-08 21:57:50,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:52,784 INFO L124 PetriNetUnfolderBase]: 4848/14436 cut-off events. [2025-03-08 21:57:52,784 INFO L125 PetriNetUnfolderBase]: For 37030/37508 co-relation queries the response was YES. [2025-03-08 21:57:52,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51279 conditions, 14436 events. 4848/14436 cut-off events. For 37030/37508 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 134595 event pairs, 890 based on Foata normal form. 169/14377 useless extension candidates. Maximal degree in co-relation 50979. Up to 3372 conditions per place. [2025-03-08 21:57:52,862 INFO L140 encePairwiseOnDemand]: 147/178 looper letters, 702 selfloop transitions, 147 changer transitions 4/1054 dead transitions. [2025-03-08 21:57:52,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1054 transitions, 9461 flow [2025-03-08 21:57:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 21:57:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-08 21:57:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2534 transitions. [2025-03-08 21:57:52,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8374091209517515 [2025-03-08 21:57:52,865 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2832 flow. Second operand 17 states and 2534 transitions. [2025-03-08 21:57:52,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1054 transitions, 9461 flow [2025-03-08 21:57:52,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1054 transitions, 9316 flow, removed 8 selfloop flow, removed 3 redundant places. [2025-03-08 21:57:52,967 INFO L231 Difference]: Finished difference. Result has 333 places, 582 transitions, 4869 flow [2025-03-08 21:57:52,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2806, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4869, PETRI_PLACES=333, PETRI_TRANSITIONS=582} [2025-03-08 21:57:52,968 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 155 predicate places. [2025-03-08 21:57:52,969 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 582 transitions, 4869 flow [2025-03-08 21:57:52,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 132.53333333333333) internal successors, (1988), 15 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:52,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:52,970 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:52,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 21:57:52,970 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:52,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:52,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1731197740, now seen corresponding path program 1 times [2025-03-08 21:57:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43182679] [2025-03-08 21:57:52,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:52,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-08 21:57:53,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:57:53,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:53,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:53,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:53,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43182679] [2025-03-08 21:57:53,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43182679] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:53,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:53,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 21:57:53,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349930731] [2025-03-08 21:57:53,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:53,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:57:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:53,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:57:53,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-08 21:57:54,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:54,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 582 transitions, 4869 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:54,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:54,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:54,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:56,236 INFO L124 PetriNetUnfolderBase]: 3519/12699 cut-off events. [2025-03-08 21:57:56,236 INFO L125 PetriNetUnfolderBase]: For 39332/40201 co-relation queries the response was YES. [2025-03-08 21:57:56,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43127 conditions, 12699 events. 3519/12699 cut-off events. For 39332/40201 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 125566 event pairs, 332 based on Foata normal form. 152/12654 useless extension candidates. Maximal degree in co-relation 42815. Up to 2010 conditions per place. [2025-03-08 21:57:56,478 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 142 selfloop transitions, 43 changer transitions 0/665 dead transitions. [2025-03-08 21:57:56,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 665 transitions, 5933 flow [2025-03-08 21:57:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:57:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:57:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2025-03-08 21:57:56,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.902247191011236 [2025-03-08 21:57:56,479 INFO L175 Difference]: Start difference. First operand has 333 places, 582 transitions, 4869 flow. Second operand 10 states and 1606 transitions. [2025-03-08 21:57:56,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 665 transitions, 5933 flow [2025-03-08 21:57:56,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 665 transitions, 5829 flow, removed 23 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:56,598 INFO L231 Difference]: Finished difference. Result has 346 places, 598 transitions, 5146 flow [2025-03-08 21:57:56,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4808, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5146, PETRI_PLACES=346, PETRI_TRANSITIONS=598} [2025-03-08 21:57:56,599 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 168 predicate places. [2025-03-08 21:57:56,599 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 598 transitions, 5146 flow [2025-03-08 21:57:56,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:56,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:56,600 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:56,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 21:57:56,600 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:56,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash 542383637, now seen corresponding path program 5 times [2025-03-08 21:57:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033382837] [2025-03-08 21:57:56,601 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:57:56,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:56,610 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:57:56,620 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:57:56,620 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:57:56,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-08 21:57:57,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:57,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033382837] [2025-03-08 21:57:57,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033382837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:57,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974238778] [2025-03-08 21:57:57,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:57:57,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:57,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:57,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 21:57:57,315 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:57:57,367 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:57:57,368 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:57:57,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:57,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-08 21:57:57,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:57,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-08 21:57:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:57,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 21:57:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974238778] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 21:57:57,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2025-03-08 21:57:57,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641989220] [2025-03-08 21:57:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:57,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:57:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:57,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:57:57,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2025-03-08 21:57:58,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:57:58,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 598 transitions, 5146 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:58,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:58,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:57:58,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:01,391 INFO L124 PetriNetUnfolderBase]: 3840/13960 cut-off events. [2025-03-08 21:58:01,391 INFO L125 PetriNetUnfolderBase]: For 47353/48263 co-relation queries the response was YES. [2025-03-08 21:58:01,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48570 conditions, 13960 events. 3840/13960 cut-off events. For 47353/48263 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 141089 event pairs, 354 based on Foata normal form. 156/13918 useless extension candidates. Maximal degree in co-relation 48250. Up to 2279 conditions per place. [2025-03-08 21:58:01,541 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 160 selfloop transitions, 44 changer transitions 1/685 dead transitions. [2025-03-08 21:58:01,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 685 transitions, 6353 flow [2025-03-08 21:58:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:58:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:58:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2025-03-08 21:58:01,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.902247191011236 [2025-03-08 21:58:01,543 INFO L175 Difference]: Start difference. First operand has 346 places, 598 transitions, 5146 flow. Second operand 10 states and 1606 transitions. [2025-03-08 21:58:01,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 685 transitions, 6353 flow [2025-03-08 21:58:01,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 685 transitions, 6238 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-03-08 21:58:01,727 INFO L231 Difference]: Finished difference. Result has 358 places, 616 transitions, 5438 flow [2025-03-08 21:58:01,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5066, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5438, PETRI_PLACES=358, PETRI_TRANSITIONS=616} [2025-03-08 21:58:01,728 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 180 predicate places. [2025-03-08 21:58:01,728 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 616 transitions, 5438 flow [2025-03-08 21:58:01,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:01,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:01,729 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:01,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 21:58:01,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-08 21:58:01,931 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:01,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1971204103, now seen corresponding path program 6 times [2025-03-08 21:58:01,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:01,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462290140] [2025-03-08 21:58:01,932 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-08 21:58:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:01,944 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:01,950 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:01,950 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-08 21:58:01,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:02,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:02,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462290140] [2025-03-08 21:58:02,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462290140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:02,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:02,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:02,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379052536] [2025-03-08 21:58:02,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:02,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:02,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:02,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:02,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:03,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:03,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 616 transitions, 5438 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:03,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:03,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:03,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:05,103 INFO L124 PetriNetUnfolderBase]: 4204/15144 cut-off events. [2025-03-08 21:58:05,103 INFO L125 PetriNetUnfolderBase]: For 56694/57762 co-relation queries the response was YES. [2025-03-08 21:58:05,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53917 conditions, 15144 events. 4204/15144 cut-off events. For 56694/57762 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 155765 event pairs, 441 based on Foata normal form. 161/15078 useless extension candidates. Maximal degree in co-relation 53591. Up to 2434 conditions per place. [2025-03-08 21:58:05,259 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 158 selfloop transitions, 53 changer transitions 0/691 dead transitions. [2025-03-08 21:58:05,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 691 transitions, 6654 flow [2025-03-08 21:58:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2025-03-08 21:58:05,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9094881398252185 [2025-03-08 21:58:05,261 INFO L175 Difference]: Start difference. First operand has 358 places, 616 transitions, 5438 flow. Second operand 9 states and 1457 transitions. [2025-03-08 21:58:05,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 691 transitions, 6654 flow [2025-03-08 21:58:05,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 691 transitions, 6566 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-03-08 21:58:05,481 INFO L231 Difference]: Finished difference. Result has 370 places, 639 transitions, 5911 flow [2025-03-08 21:58:05,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5372, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5911, PETRI_PLACES=370, PETRI_TRANSITIONS=639} [2025-03-08 21:58:05,482 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 192 predicate places. [2025-03-08 21:58:05,482 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 639 transitions, 5911 flow [2025-03-08 21:58:05,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:05,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:05,483 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:05,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 21:58:05,483 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:05,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1183134115, now seen corresponding path program 7 times [2025-03-08 21:58:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397726578] [2025-03-08 21:58:05,484 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-08 21:58:05,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:05,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-08 21:58:05,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:05,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:58:05,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:05,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:05,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397726578] [2025-03-08 21:58:05,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397726578] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:05,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:05,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:05,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920588721] [2025-03-08 21:58:05,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:05,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:05,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:05,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:05,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:06,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:06,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 639 transitions, 5911 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:06,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:06,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:06,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:08,616 INFO L124 PetriNetUnfolderBase]: 4822/17143 cut-off events. [2025-03-08 21:58:08,616 INFO L125 PetriNetUnfolderBase]: For 70745/71925 co-relation queries the response was YES. [2025-03-08 21:58:08,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62467 conditions, 17143 events. 4822/17143 cut-off events. For 70745/71925 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 181356 event pairs, 449 based on Foata normal form. 193/17089 useless extension candidates. Maximal degree in co-relation 62135. Up to 2819 conditions per place. [2025-03-08 21:58:08,801 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 185 selfloop transitions, 58 changer transitions 0/723 dead transitions. [2025-03-08 21:58:08,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 723 transitions, 7327 flow [2025-03-08 21:58:08,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2025-03-08 21:58:08,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107365792759051 [2025-03-08 21:58:08,803 INFO L175 Difference]: Start difference. First operand has 370 places, 639 transitions, 5911 flow. Second operand 9 states and 1459 transitions. [2025-03-08 21:58:08,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 723 transitions, 7327 flow [2025-03-08 21:58:09,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 723 transitions, 7229 flow, removed 49 selfloop flow, removed 0 redundant places. [2025-03-08 21:58:09,091 INFO L231 Difference]: Finished difference. Result has 385 places, 657 transitions, 6332 flow [2025-03-08 21:58:09,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5813, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6332, PETRI_PLACES=385, PETRI_TRANSITIONS=657} [2025-03-08 21:58:09,092 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 207 predicate places. [2025-03-08 21:58:09,092 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 657 transitions, 6332 flow [2025-03-08 21:58:09,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:09,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:09,093 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:09,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 21:58:09,093 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:09,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2039039339, now seen corresponding path program 8 times [2025-03-08 21:58:09,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:09,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965640342] [2025-03-08 21:58:09,094 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:58:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:09,103 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:58:09,107 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:09,107 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:58:09,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965640342] [2025-03-08 21:58:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965640342] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:09,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:09,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901004184] [2025-03-08 21:58:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:09,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:09,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:09,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:09,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:09,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 657 transitions, 6332 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:09,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:09,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:09,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:12,502 INFO L124 PetriNetUnfolderBase]: 4825/17113 cut-off events. [2025-03-08 21:58:12,502 INFO L125 PetriNetUnfolderBase]: For 77258/78553 co-relation queries the response was YES. [2025-03-08 21:58:12,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63465 conditions, 17113 events. 4825/17113 cut-off events. For 77258/78553 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 181021 event pairs, 411 based on Foata normal form. 291/17177 useless extension candidates. Maximal degree in co-relation 63125. Up to 2765 conditions per place. [2025-03-08 21:58:12,696 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 195 selfloop transitions, 75 changer transitions 0/750 dead transitions. [2025-03-08 21:58:12,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 750 transitions, 7746 flow [2025-03-08 21:58:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1450 transitions. [2025-03-08 21:58:12,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9051186017478152 [2025-03-08 21:58:12,698 INFO L175 Difference]: Start difference. First operand has 385 places, 657 transitions, 6332 flow. Second operand 9 states and 1450 transitions. [2025-03-08 21:58:12,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 750 transitions, 7746 flow [2025-03-08 21:58:12,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 750 transitions, 7656 flow, removed 45 selfloop flow, removed 0 redundant places. [2025-03-08 21:58:12,989 INFO L231 Difference]: Finished difference. Result has 397 places, 669 transitions, 6604 flow [2025-03-08 21:58:12,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6244, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6604, PETRI_PLACES=397, PETRI_TRANSITIONS=669} [2025-03-08 21:58:12,989 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 219 predicate places. [2025-03-08 21:58:12,989 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 669 transitions, 6604 flow [2025-03-08 21:58:12,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:12,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:12,990 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:12,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 21:58:12,990 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:12,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash 636817343, now seen corresponding path program 9 times [2025-03-08 21:58:12,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:12,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923219521] [2025-03-08 21:58:12,991 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 21:58:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:12,999 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:13,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:13,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-08 21:58:13,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:13,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:13,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923219521] [2025-03-08 21:58:13,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923219521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:13,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:13,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:13,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942387171] [2025-03-08 21:58:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:13,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:13,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:13,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:13,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:13,901 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:13,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 669 transitions, 6604 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:13,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:13,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:13,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:16,313 INFO L124 PetriNetUnfolderBase]: 4538/16297 cut-off events. [2025-03-08 21:58:16,313 INFO L125 PetriNetUnfolderBase]: For 78508/79676 co-relation queries the response was YES. [2025-03-08 21:58:16,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61257 conditions, 16297 events. 4538/16297 cut-off events. For 78508/79676 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 170745 event pairs, 391 based on Foata normal form. 252/16341 useless extension candidates. Maximal degree in co-relation 60912. Up to 2597 conditions per place. [2025-03-08 21:58:16,493 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 196 selfloop transitions, 71 changer transitions 0/747 dead transitions. [2025-03-08 21:58:16,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 747 transitions, 7904 flow [2025-03-08 21:58:16,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:16,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:16,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1448 transitions. [2025-03-08 21:58:16,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9038701622971286 [2025-03-08 21:58:16,494 INFO L175 Difference]: Start difference. First operand has 397 places, 669 transitions, 6604 flow. Second operand 9 states and 1448 transitions. [2025-03-08 21:58:16,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 747 transitions, 7904 flow [2025-03-08 21:58:16,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 747 transitions, 7688 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-08 21:58:16,784 INFO L231 Difference]: Finished difference. Result has 404 places, 672 transitions, 6636 flow [2025-03-08 21:58:16,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6400, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6636, PETRI_PLACES=404, PETRI_TRANSITIONS=672} [2025-03-08 21:58:16,785 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 226 predicate places. [2025-03-08 21:58:16,785 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 672 transitions, 6636 flow [2025-03-08 21:58:16,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:16,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:16,785 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:16,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 21:58:16,786 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:16,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:16,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1044469487, now seen corresponding path program 10 times [2025-03-08 21:58:16,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:16,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128003359] [2025-03-08 21:58:16,787 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 21:58:16,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:16,795 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:58:16,802 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:16,802 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-08 21:58:16,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:17,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128003359] [2025-03-08 21:58:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128003359] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:17,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 21:58:17,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001377477] [2025-03-08 21:58:17,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:17,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:58:17,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:17,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:58:17,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-08 21:58:17,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:17,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 672 transitions, 6636 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:17,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:17,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:17,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:20,340 INFO L124 PetriNetUnfolderBase]: 4539/16366 cut-off events. [2025-03-08 21:58:20,340 INFO L125 PetriNetUnfolderBase]: For 76316/77498 co-relation queries the response was YES. [2025-03-08 21:58:20,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61252 conditions, 16366 events. 4539/16366 cut-off events. For 76316/77498 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 171872 event pairs, 411 based on Foata normal form. 228/16370 useless extension candidates. Maximal degree in co-relation 60904. Up to 2620 conditions per place. [2025-03-08 21:58:20,587 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 188 selfloop transitions, 78 changer transitions 0/746 dead transitions. [2025-03-08 21:58:20,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 746 transitions, 7888 flow [2025-03-08 21:58:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:58:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:58:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1602 transitions. [2025-03-08 21:58:20,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-03-08 21:58:20,589 INFO L175 Difference]: Start difference. First operand has 404 places, 672 transitions, 6636 flow. Second operand 10 states and 1602 transitions. [2025-03-08 21:58:20,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 746 transitions, 7888 flow [2025-03-08 21:58:20,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 746 transitions, 7738 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-08 21:58:20,886 INFO L231 Difference]: Finished difference. Result has 413 places, 683 transitions, 6900 flow [2025-03-08 21:58:20,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6504, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6900, PETRI_PLACES=413, PETRI_TRANSITIONS=683} [2025-03-08 21:58:20,887 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 235 predicate places. [2025-03-08 21:58:20,887 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 683 transitions, 6900 flow [2025-03-08 21:58:20,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:20,888 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:20,888 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:20,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 21:58:20,888 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:20,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1014399185, now seen corresponding path program 11 times [2025-03-08 21:58:20,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363529514] [2025-03-08 21:58:20,889 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:58:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:20,897 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:20,903 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:20,905 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:58:20,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-08 21:58:21,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:21,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363529514] [2025-03-08 21:58:21,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363529514] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:58:21,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862537385] [2025-03-08 21:58:21,201 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:58:21,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:58:21,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:58:21,203 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:58:21,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 21:58:21,273 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:21,323 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:21,323 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:58:21,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:21,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-08 21:58:21,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:58:21,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-08 21:58:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:21,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 21:58:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862537385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:21,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 21:58:21,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-08 21:58:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612464710] [2025-03-08 21:58:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:21,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:58:21,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:21,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:58:21,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-08 21:58:22,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:22,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 683 transitions, 6900 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:22,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:22,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:22,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:25,252 INFO L124 PetriNetUnfolderBase]: 4835/17394 cut-off events. [2025-03-08 21:58:25,253 INFO L125 PetriNetUnfolderBase]: For 84853/86104 co-relation queries the response was YES. [2025-03-08 21:58:25,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65628 conditions, 17394 events. 4835/17394 cut-off events. For 84853/86104 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 184973 event pairs, 412 based on Foata normal form. 222/17385 useless extension candidates. Maximal degree in co-relation 65274. Up to 2799 conditions per place. [2025-03-08 21:58:25,392 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 212 selfloop transitions, 67 changer transitions 0/759 dead transitions. [2025-03-08 21:58:25,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 759 transitions, 8338 flow [2025-03-08 21:58:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:58:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:58:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1610 transitions. [2025-03-08 21:58:25,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9044943820224719 [2025-03-08 21:58:25,393 INFO L175 Difference]: Start difference. First operand has 413 places, 683 transitions, 6900 flow. Second operand 10 states and 1610 transitions. [2025-03-08 21:58:25,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 759 transitions, 8338 flow [2025-03-08 21:58:25,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 759 transitions, 8108 flow, removed 69 selfloop flow, removed 4 redundant places. [2025-03-08 21:58:25,691 INFO L231 Difference]: Finished difference. Result has 422 places, 694 transitions, 7118 flow [2025-03-08 21:58:25,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6764, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7118, PETRI_PLACES=422, PETRI_TRANSITIONS=694} [2025-03-08 21:58:25,692 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 244 predicate places. [2025-03-08 21:58:25,692 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 694 transitions, 7118 flow [2025-03-08 21:58:25,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:25,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:25,693 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:25,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 21:58:25,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:58:25,893 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:25,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:25,894 INFO L85 PathProgramCache]: Analyzing trace with hash 749499677, now seen corresponding path program 12 times [2025-03-08 21:58:25,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:25,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470774682] [2025-03-08 21:58:25,894 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-08 21:58:25,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:25,902 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:25,906 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:25,906 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-08 21:58:25,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:26,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:26,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470774682] [2025-03-08 21:58:26,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470774682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:26,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:26,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:26,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598686494] [2025-03-08 21:58:26,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:26,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:26,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:26,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:26,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:26,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:26,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 694 transitions, 7118 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:26,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:26,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:26,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:29,699 INFO L124 PetriNetUnfolderBase]: 4841/17464 cut-off events. [2025-03-08 21:58:29,699 INFO L125 PetriNetUnfolderBase]: For 84491/85755 co-relation queries the response was YES. [2025-03-08 21:58:29,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65856 conditions, 17464 events. 4841/17464 cut-off events. For 84491/85755 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 186210 event pairs, 418 based on Foata normal form. 242/17476 useless extension candidates. Maximal degree in co-relation 65498. Up to 2810 conditions per place. [2025-03-08 21:58:29,856 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 203 selfloop transitions, 82 changer transitions 0/765 dead transitions. [2025-03-08 21:58:29,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 765 transitions, 8419 flow [2025-03-08 21:58:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:29,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1453 transitions. [2025-03-08 21:58:29,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9069912609238452 [2025-03-08 21:58:29,858 INFO L175 Difference]: Start difference. First operand has 422 places, 694 transitions, 7118 flow. Second operand 9 states and 1453 transitions. [2025-03-08 21:58:29,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 765 transitions, 8419 flow [2025-03-08 21:58:30,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 765 transitions, 8288 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-08 21:58:30,202 INFO L231 Difference]: Finished difference. Result has 428 places, 703 transitions, 7352 flow [2025-03-08 21:58:30,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6996, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7352, PETRI_PLACES=428, PETRI_TRANSITIONS=703} [2025-03-08 21:58:30,203 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 250 predicate places. [2025-03-08 21:58:30,203 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 703 transitions, 7352 flow [2025-03-08 21:58:30,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:30,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:30,204 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:30,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 21:58:30,204 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:30,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1824353749, now seen corresponding path program 13 times [2025-03-08 21:58:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451689553] [2025-03-08 21:58:30,205 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-08 21:58:30,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:30,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-08 21:58:30,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:30,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:58:30,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:30,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451689553] [2025-03-08 21:58:30,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451689553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:30,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:30,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928681863] [2025-03-08 21:58:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:30,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:30,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:30,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:30,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:30,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:30,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 703 transitions, 7352 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:30,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:30,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:30,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:34,587 INFO L124 PetriNetUnfolderBase]: 4841/17460 cut-off events. [2025-03-08 21:58:34,588 INFO L125 PetriNetUnfolderBase]: For 85914/87163 co-relation queries the response was YES. [2025-03-08 21:58:34,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66068 conditions, 17460 events. 4841/17460 cut-off events. For 85914/87163 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 186092 event pairs, 424 based on Foata normal form. 240/17474 useless extension candidates. Maximal degree in co-relation 65708. Up to 2809 conditions per place. [2025-03-08 21:58:34,729 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 212 selfloop transitions, 79 changer transitions 0/771 dead transitions. [2025-03-08 21:58:34,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 771 transitions, 8642 flow [2025-03-08 21:58:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1454 transitions. [2025-03-08 21:58:34,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9076154806491885 [2025-03-08 21:58:34,730 INFO L175 Difference]: Start difference. First operand has 428 places, 703 transitions, 7352 flow. Second operand 9 states and 1454 transitions. [2025-03-08 21:58:34,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 771 transitions, 8642 flow [2025-03-08 21:58:35,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 771 transitions, 8474 flow, removed 13 selfloop flow, removed 5 redundant places. [2025-03-08 21:58:35,063 INFO L231 Difference]: Finished difference. Result has 435 places, 711 transitions, 7554 flow [2025-03-08 21:58:35,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=7192, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7554, PETRI_PLACES=435, PETRI_TRANSITIONS=711} [2025-03-08 21:58:35,064 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 257 predicate places. [2025-03-08 21:58:35,064 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 711 transitions, 7554 flow [2025-03-08 21:58:35,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:35,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:35,065 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:35,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 21:58:35,065 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:35,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:35,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1513379463, now seen corresponding path program 14 times [2025-03-08 21:58:35,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:35,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548905069] [2025-03-08 21:58:35,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:58:35,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:35,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:58:35,077 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:35,077 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:58:35,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:35,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548905069] [2025-03-08 21:58:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548905069] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:35,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:35,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:35,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702946188] [2025-03-08 21:58:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:35,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:35,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:35,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:35,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:35,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:35,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 711 transitions, 7554 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:35,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:35,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:35,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:38,988 INFO L124 PetriNetUnfolderBase]: 4560/16637 cut-off events. [2025-03-08 21:58:38,988 INFO L125 PetriNetUnfolderBase]: For 81728/82926 co-relation queries the response was YES. [2025-03-08 21:58:39,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62837 conditions, 16637 events. 4560/16637 cut-off events. For 81728/82926 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 175477 event pairs, 411 based on Foata normal form. 217/16629 useless extension candidates. Maximal degree in co-relation 62473. Up to 2648 conditions per place. [2025-03-08 21:58:39,169 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 208 selfloop transitions, 80 changer transitions 0/768 dead transitions. [2025-03-08 21:58:39,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 768 transitions, 8664 flow [2025-03-08 21:58:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:39,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:39,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1456 transitions. [2025-03-08 21:58:39,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088639200998752 [2025-03-08 21:58:39,171 INFO L175 Difference]: Start difference. First operand has 435 places, 711 transitions, 7554 flow. Second operand 9 states and 1456 transitions. [2025-03-08 21:58:39,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 768 transitions, 8664 flow [2025-03-08 21:58:39,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 768 transitions, 8508 flow, removed 22 selfloop flow, removed 4 redundant places. [2025-03-08 21:58:39,724 INFO L231 Difference]: Finished difference. Result has 442 places, 717 transitions, 7712 flow [2025-03-08 21:58:39,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=7330, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7712, PETRI_PLACES=442, PETRI_TRANSITIONS=717} [2025-03-08 21:58:39,725 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 264 predicate places. [2025-03-08 21:58:39,725 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 717 transitions, 7712 flow [2025-03-08 21:58:39,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:39,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:39,725 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:39,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 21:58:39,726 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:39,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:39,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1474821071, now seen corresponding path program 15 times [2025-03-08 21:58:39,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70327729] [2025-03-08 21:58:39,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 21:58:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:39,738 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:39,742 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:39,742 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-08 21:58:39,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:39,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:39,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70327729] [2025-03-08 21:58:39,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70327729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:39,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:39,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:39,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155223799] [2025-03-08 21:58:39,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:39,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:39,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:39,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:39,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:40,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:40,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 717 transitions, 7712 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:40,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:40,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:40,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:43,548 INFO L124 PetriNetUnfolderBase]: 4277/15765 cut-off events. [2025-03-08 21:58:43,548 INFO L125 PetriNetUnfolderBase]: For 76506/77601 co-relation queries the response was YES. [2025-03-08 21:58:43,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59276 conditions, 15765 events. 4277/15765 cut-off events. For 76506/77601 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 164272 event pairs, 389 based on Foata normal form. 203/15755 useless extension candidates. Maximal degree in co-relation 58909. Up to 2481 conditions per place. [2025-03-08 21:58:43,686 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 214 selfloop transitions, 77 changer transitions 0/771 dead transitions. [2025-03-08 21:58:43,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 771 transitions, 8802 flow [2025-03-08 21:58:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:58:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:58:43,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1458 transitions. [2025-03-08 21:58:43,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9101123595505618 [2025-03-08 21:58:43,687 INFO L175 Difference]: Start difference. First operand has 442 places, 717 transitions, 7712 flow. Second operand 9 states and 1458 transitions. [2025-03-08 21:58:43,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 771 transitions, 8802 flow [2025-03-08 21:58:43,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 771 transitions, 8572 flow, removed 48 selfloop flow, removed 5 redundant places. [2025-03-08 21:58:43,998 INFO L231 Difference]: Finished difference. Result has 448 places, 723 transitions, 7779 flow [2025-03-08 21:58:43,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=7420, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7779, PETRI_PLACES=448, PETRI_TRANSITIONS=723} [2025-03-08 21:58:43,998 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 270 predicate places. [2025-03-08 21:58:43,999 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 723 transitions, 7779 flow [2025-03-08 21:58:43,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:43,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:43,999 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:43,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 21:58:43,999 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:44,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1786908365, now seen corresponding path program 16 times [2025-03-08 21:58:44,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:44,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390071633] [2025-03-08 21:58:44,000 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 21:58:44,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:44,008 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-08 21:58:44,018 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:44,018 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-08 21:58:44,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:44,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390071633] [2025-03-08 21:58:44,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390071633] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:44,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:44,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 21:58:44,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312408647] [2025-03-08 21:58:44,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:44,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:58:44,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:44,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:58:44,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-03-08 21:58:45,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:45,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 723 transitions, 7779 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:45,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:45,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:45,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:48,763 INFO L124 PetriNetUnfolderBase]: 4279/15811 cut-off events. [2025-03-08 21:58:48,763 INFO L125 PetriNetUnfolderBase]: For 75890/77027 co-relation queries the response was YES. [2025-03-08 21:58:48,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59383 conditions, 15811 events. 4279/15811 cut-off events. For 75890/77027 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 164777 event pairs, 450 based on Foata normal form. 209/15795 useless extension candidates. Maximal degree in co-relation 59013. Up to 2518 conditions per place. [2025-03-08 21:58:48,912 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 197 selfloop transitions, 102 changer transitions 0/779 dead transitions. [2025-03-08 21:58:48,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 779 transitions, 8979 flow [2025-03-08 21:58:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:58:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:58:48,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1602 transitions. [2025-03-08 21:58:48,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-03-08 21:58:48,914 INFO L175 Difference]: Start difference. First operand has 448 places, 723 transitions, 7779 flow. Second operand 10 states and 1602 transitions. [2025-03-08 21:58:48,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 779 transitions, 8979 flow [2025-03-08 21:58:49,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 779 transitions, 8786 flow, removed 24 selfloop flow, removed 5 redundant places. [2025-03-08 21:58:49,225 INFO L231 Difference]: Finished difference. Result has 458 places, 736 transitions, 8173 flow [2025-03-08 21:58:49,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=7602, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8173, PETRI_PLACES=458, PETRI_TRANSITIONS=736} [2025-03-08 21:58:49,226 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 280 predicate places. [2025-03-08 21:58:49,226 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 736 transitions, 8173 flow [2025-03-08 21:58:49,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:49,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:49,226 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:49,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 21:58:49,226 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:49,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash -912284783, now seen corresponding path program 17 times [2025-03-08 21:58:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520237217] [2025-03-08 21:58:49,227 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:58:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:49,235 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:49,240 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:49,240 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:58:49,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-08 21:58:49,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:49,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520237217] [2025-03-08 21:58:49,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520237217] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:58:49,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437915142] [2025-03-08 21:58:49,673 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-08 21:58:49,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:58:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:58:49,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:58:49,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 21:58:49,750 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:49,798 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-08 21:58:49,798 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-08 21:58:49,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:49,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-08 21:58:49,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:58:50,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-08 21:58:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:50,105 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 21:58:50,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437915142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:50,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 21:58:50,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2025-03-08 21:58:50,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855264874] [2025-03-08 21:58:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:50,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:58:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:50,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:58:50,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2025-03-08 21:58:50,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:50,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 736 transitions, 8173 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:50,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:50,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:50,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:58:54,000 INFO L124 PetriNetUnfolderBase]: 4573/16752 cut-off events. [2025-03-08 21:58:54,000 INFO L125 PetriNetUnfolderBase]: For 84544/85745 co-relation queries the response was YES. [2025-03-08 21:58:54,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63561 conditions, 16752 events. 4573/16752 cut-off events. For 84544/85745 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 176758 event pairs, 465 based on Foata normal form. 203/16728 useless extension candidates. Maximal degree in co-relation 63184. Up to 2685 conditions per place. [2025-03-08 21:58:54,163 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 252 selfloop transitions, 62 changer transitions 0/794 dead transitions. [2025-03-08 21:58:54,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 794 transitions, 9555 flow [2025-03-08 21:58:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 21:58:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-08 21:58:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1612 transitions. [2025-03-08 21:58:54,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9056179775280899 [2025-03-08 21:58:54,165 INFO L175 Difference]: Start difference. First operand has 458 places, 736 transitions, 8173 flow. Second operand 10 states and 1612 transitions. [2025-03-08 21:58:54,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 794 transitions, 9555 flow [2025-03-08 21:58:54,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 794 transitions, 9378 flow, removed 88 selfloop flow, removed 1 redundant places. [2025-03-08 21:58:54,568 INFO L231 Difference]: Finished difference. Result has 470 places, 747 transitions, 8438 flow [2025-03-08 21:58:54,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=8092, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8438, PETRI_PLACES=470, PETRI_TRANSITIONS=747} [2025-03-08 21:58:54,568 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 292 predicate places. [2025-03-08 21:58:54,568 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 747 transitions, 8438 flow [2025-03-08 21:58:54,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:54,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:58:54,569 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:58:54,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 21:58:54,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:58:54,769 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:58:54,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:58:54,771 INFO L85 PathProgramCache]: Analyzing trace with hash -477110345, now seen corresponding path program 18 times [2025-03-08 21:58:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:58:54,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203086973] [2025-03-08 21:58:54,771 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-08 21:58:54,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:58:54,783 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-08 21:58:54,787 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-08 21:58:54,787 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-08 21:58:54,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:58:54,912 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:58:54,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:58:54,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203086973] [2025-03-08 21:58:54,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203086973] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:58:54,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:58:54,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 21:58:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412072420] [2025-03-08 21:58:54,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:58:54,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 21:58:54,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:58:54,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 21:58:54,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-08 21:58:55,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-08 21:58:55,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 747 transitions, 8438 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:58:55,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:58:55,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-08 21:58:55,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand