./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:15:46,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:15:46,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:15:46,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:15:46,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:15:46,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:15:46,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:15:46,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:15:46,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:15:46,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:15:46,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:15:46,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:15:46,189 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:15:46,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:15:46,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:15:46,189 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:15:46,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:15:46,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:15:46,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:15:46,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:15:46,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:15:46,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:15:46,190 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:15:46,191 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:15:46,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:15:46,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:15:46,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:15:46,192 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:15:46,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:15:46,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:15:46,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:15:46,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:15:46,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:15:46,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:15:46,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:15:46,193 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 -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2025-03-13 22:15:46,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:15:46,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:15:46,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:15:46,430 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:15:46,430 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:15:46,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-13 22:15:47,560 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa9fa5205/a7a44a2c2db74ca58d1960efb6e7b0f5/FLAG940abdef7 [2025-03-13 22:15:47,804 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:15:47,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-13 22:15:47,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa9fa5205/a7a44a2c2db74ca58d1960efb6e7b0f5/FLAG940abdef7 [2025-03-13 22:15:47,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa9fa5205/a7a44a2c2db74ca58d1960efb6e7b0f5 [2025-03-13 22:15:47,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:15:47,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:15:47,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:15:47,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:15:47,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:15:47,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:15:47" (1/1) ... [2025-03-13 22:15:47,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4784114c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:47, skipping insertion in model container [2025-03-13 22:15:47,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:15:47" (1/1) ... [2025-03-13 22:15:47,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:15:48,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:15:48,136 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:15:48,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:15:48,223 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:15:48,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48 WrapperNode [2025-03-13 22:15:48,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:15:48,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:15:48,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:15:48,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:15:48,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,278 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2025-03-13 22:15:48,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:15:48,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:15:48,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:15:48,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:15:48,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:15:48,316 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:15:48,318 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:15:48,318 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:15:48,319 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (1/1) ... [2025-03-13 22:15:48,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:15:48,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:48,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:15:48,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:15:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:15:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:15:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:15:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:15:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:15:48,386 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:15:48,477 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:15:48,479 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:15:48,747 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:15:48,747 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:15:48,747 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:15:48,786 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:15:48,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:15:48 BoogieIcfgContainer [2025-03-13 22:15:48,788 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:15:48,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:15:48,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:15:48,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:15:48,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:15:47" (1/3) ... [2025-03-13 22:15:48,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ed97d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:15:48, skipping insertion in model container [2025-03-13 22:15:48,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:15:48" (2/3) ... [2025-03-13 22:15:48,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ed97d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:15:48, skipping insertion in model container [2025-03-13 22:15:48,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:15:48" (3/3) ... [2025-03-13 22:15:48,796 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2025-03-13 22:15:48,806 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:15:48,808 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_05-funloop_hard2.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-13 22:15:48,809 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:15:48,882 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:15:48,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 182 transitions, 368 flow [2025-03-13 22:15:48,992 INFO L124 PetriNetUnfolderBase]: 3/181 cut-off events. [2025-03-13 22:15:48,994 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:15:48,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 181 events. 3/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2025-03-13 22:15:49,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 182 transitions, 368 flow [2025-03-13 22:15:49,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 181 transitions, 365 flow [2025-03-13 22:15:49,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:15:49,021 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;@25bbad50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:15:49,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-13 22:15:49,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:15:49,045 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-13 22:15:49,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:15:49,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:49,046 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] [2025-03-13 22:15:49,046 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)] === [2025-03-13 22:15:49,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 398662977, now seen corresponding path program 1 times [2025-03-13 22:15:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19347023] [2025-03-13 22:15:49,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:49,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-13 22:15:49,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-13 22:15:49,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:49,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19347023] [2025-03-13 22:15:49,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19347023] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:49,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:49,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:15:49,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593105240] [2025-03-13 22:15:49,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:49,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:15:49,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:49,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:15:49,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:15:49,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-13 22:15:49,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:49,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:49,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-13 22:15:49,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:49,550 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2025-03-13 22:15:49,550 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:15:49,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 321 events. 15/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 914 event pairs, 10 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2025-03-13 22:15:49,553 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2025-03-13 22:15:49,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2025-03-13 22:15:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:15:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:15:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2025-03-13 22:15:49,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9560439560439561 [2025-03-13 22:15:49,564 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 365 flow. Second operand 3 states and 522 transitions. [2025-03-13 22:15:49,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2025-03-13 22:15:49,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:15:49,571 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2025-03-13 22:15:49,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2025-03-13 22:15:49,577 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2025-03-13 22:15:49,577 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2025-03-13 22:15:49,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:49,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:49,578 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:15:49,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:15:49,578 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)] === [2025-03-13 22:15:49,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:49,579 INFO L85 PathProgramCache]: Analyzing trace with hash 273525691, now seen corresponding path program 1 times [2025-03-13 22:15:49,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:49,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041072198] [2025-03-13 22:15:49,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:49,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:49,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-13 22:15:49,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-13 22:15:49,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:49,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:49,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:49,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041072198] [2025-03-13 22:15:49,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041072198] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:15:49,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429218107] [2025-03-13 22:15:49,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:49,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:15:49,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:49,741 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) [2025-03-13 22:15:49,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-13 22:15:49,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-13 22:15:49,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-13 22:15:49,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:49,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:49,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-13 22:15:49,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:15:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-13 22:15:49,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:15:49,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429218107] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:49,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-13 22:15:49,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-13 22:15:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150063516] [2025-03-13 22:15:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:49,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:15:49,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:49,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:15:49,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:49,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-13 22:15:49,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:49,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:49,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-13 22:15:49,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:49,994 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2025-03-13 22:15:49,994 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:15:49,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 481 events. 35/481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1726 event pairs, 10 based on Foata normal form. 3/450 useless extension candidates. Maximal degree in co-relation 481. Up to 51 conditions per place. [2025-03-13 22:15:49,999 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-13 22:15:49,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2025-03-13 22:15:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:15:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:15:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2025-03-13 22:15:50,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9633699633699634 [2025-03-13 22:15:50,002 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2025-03-13 22:15:50,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2025-03-13 22:15:50,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:15:50,007 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2025-03-13 22:15:50,008 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2025-03-13 22:15:50,008 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2025-03-13 22:15:50,009 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2025-03-13 22:15:50,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:50,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:50,009 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] [2025-03-13 22:15:50,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-13 22:15:50,214 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 [2025-03-13 22:15:50,214 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)] === [2025-03-13 22:15:50,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2132139115, now seen corresponding path program 1 times [2025-03-13 22:15:50,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:50,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754757708] [2025-03-13 22:15:50,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:50,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:50,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-13 22:15:50,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-13 22:15:50,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:50,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754757708] [2025-03-13 22:15:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754757708] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:15:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076164141] [2025-03-13 22:15:50,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:50,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:15:50,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:50,358 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) [2025-03-13 22:15:50,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-13 22:15:50,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-13 22:15:50,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-13 22:15:50,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:50,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:50,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-13 22:15:50,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:15:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:50,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-13 22:15:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:50,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076164141] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-13 22:15:50,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-13 22:15:50,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-13 22:15:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216702731] [2025-03-13 22:15:50,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-13 22:15:50,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:15:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:50,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:15:50,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-13 22:15:50,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-13 22:15:50,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:50,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:50,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-13 22:15:50,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:50,696 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2025-03-13 22:15:50,696 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:15:50,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 489 events. 24/489 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1569 event pairs, 14 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 458. Up to 51 conditions per place. [2025-03-13 22:15:50,699 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-03-13 22:15:50,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2025-03-13 22:15:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:15:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:15:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2025-03-13 22:15:50,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-03-13 22:15:50,702 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2025-03-13 22:15:50,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2025-03-13 22:15:50,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:15:50,707 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2025-03-13 22:15:50,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2025-03-13 22:15:50,708 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2025-03-13 22:15:50,709 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2025-03-13 22:15:50,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:50,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:50,710 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] [2025-03-13 22:15:50,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-13 22:15:50,914 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 [2025-03-13 22:15:50,914 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)] === [2025-03-13 22:15:50,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:50,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1323425749, now seen corresponding path program 2 times [2025-03-13 22:15:50,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:50,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049681521] [2025-03-13 22:15:50,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:15:50,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:50,930 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-13 22:15:50,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-13 22:15:50,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:15:50,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-13 22:15:51,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:51,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049681521] [2025-03-13 22:15:51,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049681521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:51,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:51,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:51,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811679473] [2025-03-13 22:15:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:51,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:51,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:51,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:51,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:51,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:15:51,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:51,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:51,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:15:51,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:51,747 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2025-03-13 22:15:51,747 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-13 22:15:51,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1545 events. 333/1545 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10115 event pairs, 160 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2144. Up to 544 conditions per place. [2025-03-13 22:15:51,756 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2025-03-13 22:15:51,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2025-03-13 22:15:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2025-03-13 22:15:51,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8946886446886447 [2025-03-13 22:15:51,761 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2025-03-13 22:15:51,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2025-03-13 22:15:51,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-13 22:15:51,765 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2025-03-13 22:15:51,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2025-03-13 22:15:51,766 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2025-03-13 22:15:51,766 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2025-03-13 22:15:51,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:51,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:51,767 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] [2025-03-13 22:15:51,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:15:51,767 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)] === [2025-03-13 22:15:51,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:51,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1407213627, now seen corresponding path program 1 times [2025-03-13 22:15:51,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:51,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229745442] [2025-03-13 22:15:51,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:51,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-13 22:15:51,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-13 22:15:51,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:51,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:51,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:51,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229745442] [2025-03-13 22:15:51,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229745442] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:15:51,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59768019] [2025-03-13 22:15:51,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:51,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:15:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:51,923 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) [2025-03-13 22:15:51,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-13 22:15:51,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-13 22:15:52,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-13 22:15:52,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:52,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:52,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-13 22:15:52,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:15:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:52,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-13 22:15:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:52,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59768019] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-13 22:15:52,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-13 22:15:52,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-13 22:15:52,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975860880] [2025-03-13 22:15:52,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-13 22:15:52,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-13 22:15:52,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:52,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-13 22:15:52,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-13 22:15:52,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-13 22:15:52,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:52,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:52,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-13 22:15:52,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:52,468 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2025-03-13 22:15:52,469 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-13 22:15:52,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 1109 events. 118/1109 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5898 event pairs, 24 based on Foata normal form. 4/1039 useless extension candidates. Maximal degree in co-relation 1418. Up to 133 conditions per place. [2025-03-13 22:15:52,473 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2025-03-13 22:15:52,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2025-03-13 22:15:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-13 22:15:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-13 22:15:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2025-03-13 22:15:52,482 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923861852433281 [2025-03-13 22:15:52,482 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2025-03-13 22:15:52,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2025-03-13 22:15:52,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:52,488 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2025-03-13 22:15:52,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2025-03-13 22:15:52,489 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2025-03-13 22:15:52,489 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2025-03-13 22:15:52,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:52,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:52,491 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] [2025-03-13 22:15:52,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-13 22:15:52,692 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 [2025-03-13 22:15:52,692 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)] === [2025-03-13 22:15:52,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2067257275, now seen corresponding path program 2 times [2025-03-13 22:15:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:52,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683050095] [2025-03-13 22:15:52,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:15:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:52,707 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-13 22:15:52,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-13 22:15:52,715 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:15:52,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-13 22:15:52,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:52,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683050095] [2025-03-13 22:15:52,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683050095] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:52,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:52,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:52,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422210877] [2025-03-13 22:15:52,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:52,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:52,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:52,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:52,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:53,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:15:53,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:53,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:53,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:15:53,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:53,480 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2025-03-13 22:15:53,481 INFO L125 PetriNetUnfolderBase]: For 415/445 co-relation queries the response was YES. [2025-03-13 22:15:53,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2412 events. 505/2412 cut-off events. For 415/445 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 17728 event pairs, 194 based on Foata normal form. 5/2276 useless extension candidates. Maximal degree in co-relation 3909. Up to 824 conditions per place. [2025-03-13 22:15:53,493 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2025-03-13 22:15:53,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2025-03-13 22:15:53,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2025-03-13 22:15:53,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-13 22:15:53,496 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2025-03-13 22:15:53,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2025-03-13 22:15:53,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-13 22:15:53,505 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2025-03-13 22:15:53,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2025-03-13 22:15:53,506 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2025-03-13 22:15:53,507 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2025-03-13 22:15:53,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:53,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:53,507 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] [2025-03-13 22:15:53,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:15:53,508 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)] === [2025-03-13 22:15:53,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1078927013, now seen corresponding path program 1 times [2025-03-13 22:15:53,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:53,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340544563] [2025-03-13 22:15:53,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:53,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:53,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-13 22:15:53,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-13 22:15:53,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:53,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:53,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340544563] [2025-03-13 22:15:53,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340544563] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:15:53,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948300698] [2025-03-13 22:15:53,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:53,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:15:53,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:15:53,819 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) [2025-03-13 22:15:53,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-13 22:15:53,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-13 22:15:53,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-13 22:15:53,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:53,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:53,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-13 22:15:53,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:15:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:53,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-13 22:15:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:15:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948300698] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-13 22:15:54,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-13 22:15:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-13 22:15:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670309122] [2025-03-13 22:15:54,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-13 22:15:54,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-13 22:15:54,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:54,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-13 22:15:54,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-13 22:15:54,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-13 22:15:54,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:54,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:54,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-13 22:15:54,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:54,612 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2025-03-13 22:15:54,612 INFO L125 PetriNetUnfolderBase]: For 589/618 co-relation queries the response was YES. [2025-03-13 22:15:54,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 1738 events. 264/1738 cut-off events. For 589/618 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11608 event pairs, 40 based on Foata normal form. 13/1667 useless extension candidates. Maximal degree in co-relation 2886. Up to 204 conditions per place. [2025-03-13 22:15:54,622 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2025-03-13 22:15:54,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2025-03-13 22:15:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-13 22:15:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-13 22:15:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2025-03-13 22:15:54,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9223443223443224 [2025-03-13 22:15:54,629 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2025-03-13 22:15:54,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2025-03-13 22:15:54,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:54,636 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2025-03-13 22:15:54,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2025-03-13 22:15:54,637 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2025-03-13 22:15:54,637 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2025-03-13 22:15:54,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:54,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:54,639 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] [2025-03-13 22:15:54,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-13 22:15:54,839 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 [2025-03-13 22:15:54,839 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)] === [2025-03-13 22:15:54,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1427340449, now seen corresponding path program 2 times [2025-03-13 22:15:54,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:54,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764149401] [2025-03-13 22:15:54,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:15:54,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:54,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-13 22:15:54,856 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-13 22:15:54,856 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:15:54,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:15:55,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:55,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764149401] [2025-03-13 22:15:55,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764149401] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:55,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:55,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:55,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465075814] [2025-03-13 22:15:55,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:55,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:55,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:55,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:55,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-13 22:15:55,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:55,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-13 22:15:55,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:55,635 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2025-03-13 22:15:55,636 INFO L125 PetriNetUnfolderBase]: For 2058/2153 co-relation queries the response was YES. [2025-03-13 22:15:55,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2058/2153 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 23816 event pairs, 303 based on Foata normal form. 20/3172 useless extension candidates. Maximal degree in co-relation 7261. Up to 1634 conditions per place. [2025-03-13 22:15:55,655 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2025-03-13 22:15:55,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2025-03-13 22:15:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:55,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2025-03-13 22:15:55,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2025-03-13 22:15:55,658 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2025-03-13 22:15:55,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2025-03-13 22:15:55,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-13 22:15:55,670 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2025-03-13 22:15:55,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=259, PETRI_TRANSITIONS=325} [2025-03-13 22:15:55,672 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2025-03-13 22:15:55,673 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2025-03-13 22:15:55,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:55,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:55,673 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] [2025-03-13 22:15:55,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:15:55,674 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)] === [2025-03-13 22:15:55,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:55,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1670237187, now seen corresponding path program 1 times [2025-03-13 22:15:55,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:55,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550219028] [2025-03-13 22:15:55,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:55,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:55,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-13 22:15:55,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-13 22:15:55,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:55,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:15:55,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:55,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550219028] [2025-03-13 22:15:55,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550219028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:55,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:55,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:15:55,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946605811] [2025-03-13 22:15:55,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:55,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:15:55,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:55,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:15:55,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:15:56,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-13 22:15:56,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 325 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:56,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:56,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-13 22:15:56,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:56,723 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2025-03-13 22:15:56,724 INFO L125 PetriNetUnfolderBase]: For 4859/4990 co-relation queries the response was YES. [2025-03-13 22:15:56,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 4859/4990 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35660 event pairs, 341 based on Foata normal form. 40/4406 useless extension candidates. Maximal degree in co-relation 11373. Up to 2190 conditions per place. [2025-03-13 22:15:56,749 INFO L140 encePairwiseOnDemand]: 159/182 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2025-03-13 22:15:56,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2025-03-13 22:15:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:15:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:15:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2025-03-13 22:15:56,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9001831501831502 [2025-03-13 22:15:56,751 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2025-03-13 22:15:56,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2025-03-13 22:15:56,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:56,769 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2025-03-13 22:15:56,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2494, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2025-03-13 22:15:56,771 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2025-03-13 22:15:56,771 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2025-03-13 22:15:56,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:56,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:56,772 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] [2025-03-13 22:15:56,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 22:15:56,772 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)] === [2025-03-13 22:15:56,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash 496308676, now seen corresponding path program 1 times [2025-03-13 22:15:56,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:56,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101199860] [2025-03-13 22:15:56,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:15:56,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:56,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-13 22:15:56,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:15:56,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:15:56,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:15:57,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:57,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101199860] [2025-03-13 22:15:57,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101199860] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:57,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:57,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:15:57,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468122274] [2025-03-13 22:15:57,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:57,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:15:57,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:57,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:15:57,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:15:58,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:15:58,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2494 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:58,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:15:58,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:15:58,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:15:58,995 INFO L124 PetriNetUnfolderBase]: 1231/4917 cut-off events. [2025-03-13 22:15:58,995 INFO L125 PetriNetUnfolderBase]: For 6125/6264 co-relation queries the response was YES. [2025-03-13 22:15:59,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 4917 events. 1231/4917 cut-off events. For 6125/6264 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 41564 event pairs, 180 based on Foata normal form. 37/4877 useless extension candidates. Maximal degree in co-relation 12843. Up to 712 conditions per place. [2025-03-13 22:15:59,030 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2025-03-13 22:15:59,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2025-03-13 22:15:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:15:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:15:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-03-13 22:15:59,033 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956043956043956 [2025-03-13 22:15:59,033 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2025-03-13 22:15:59,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2025-03-13 22:15:59,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-13 22:15:59,072 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2025-03-13 22:15:59,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2492, PETRI_PLACES=284, PETRI_TRANSITIONS=424} [2025-03-13 22:15:59,074 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2025-03-13 22:15:59,074 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2025-03-13 22:15:59,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:15:59,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:15:59,075 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] [2025-03-13 22:15:59,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 22:15:59,075 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)] === [2025-03-13 22:15:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:15:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash 510152904, now seen corresponding path program 2 times [2025-03-13 22:15:59,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:15:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959516506] [2025-03-13 22:15:59,076 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:15:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:15:59,091 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:15:59,102 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:15:59,104 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:15:59,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:15:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:15:59,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:15:59,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959516506] [2025-03-13 22:15:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959516506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:15:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:15:59,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:15:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878710123] [2025-03-13 22:15:59,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:15:59,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:15:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:15:59,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:15:59,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:00,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:00,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 424 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:00,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:00,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:00,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:01,750 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2025-03-13 22:16:01,751 INFO L125 PetriNetUnfolderBase]: For 12598/12898 co-relation queries the response was YES. [2025-03-13 22:16:01,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12598/12898 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 88651 event pairs, 325 based on Foata normal form. 99/9273 useless extension candidates. Maximal degree in co-relation 26194. Up to 1468 conditions per place. [2025-03-13 22:16:01,798 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2025-03-13 22:16:01,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2025-03-13 22:16:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2025-03-13 22:16:01,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9004884004884005 [2025-03-13 22:16:01,801 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2025-03-13 22:16:01,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2025-03-13 22:16:01,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:16:01,859 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2025-03-13 22:16:01,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2671, PETRI_PLACES=298, PETRI_TRANSITIONS=441} [2025-03-13 22:16:01,861 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2025-03-13 22:16:01,861 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2025-03-13 22:16:01,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:01,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:01,862 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] [2025-03-13 22:16:01,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 22:16:01,862 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)] === [2025-03-13 22:16:01,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:01,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1645867836, now seen corresponding path program 3 times [2025-03-13 22:16:01,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:01,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619292984] [2025-03-13 22:16:01,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:01,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:01,875 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:01,883 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:01,884 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:01,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:02,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:02,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619292984] [2025-03-13 22:16:02,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619292984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:02,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:02,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:02,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008518817] [2025-03-13 22:16:02,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:02,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:02,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:02,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:02,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:03,328 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:03,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 441 transitions, 2671 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:03,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:03,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:03,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:05,039 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2025-03-13 22:16:05,039 INFO L125 PetriNetUnfolderBase]: For 16366/16818 co-relation queries the response was YES. [2025-03-13 22:16:05,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16366/16818 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 101812 event pairs, 352 based on Foata normal form. 106/10467 useless extension candidates. Maximal degree in co-relation 30805. Up to 1567 conditions per place. [2025-03-13 22:16:05,109 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2025-03-13 22:16:05,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2025-03-13 22:16:05,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2025-03-13 22:16:05,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986568986568987 [2025-03-13 22:16:05,110 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2025-03-13 22:16:05,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2025-03-13 22:16:05,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-13 22:16:05,183 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2025-03-13 22:16:05,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2840, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2025-03-13 22:16:05,184 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2025-03-13 22:16:05,184 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2025-03-13 22:16:05,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:05,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:05,185 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] [2025-03-13 22:16:05,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-13 22:16:05,185 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)] === [2025-03-13 22:16:05,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1851917024, now seen corresponding path program 4 times [2025-03-13 22:16:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766344486] [2025-03-13 22:16:05,186 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 22:16:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:05,202 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:16:05,233 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:05,234 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-13 22:16:05,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:05,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:05,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766344486] [2025-03-13 22:16:05,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766344486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:05,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-13 22:16:05,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232422349] [2025-03-13 22:16:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:05,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:05,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:05,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:05,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-13 22:16:06,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:06,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2840 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:06,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:06,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:06,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:08,378 INFO L124 PetriNetUnfolderBase]: 3073/11395 cut-off events. [2025-03-13 22:16:08,379 INFO L125 PetriNetUnfolderBase]: For 20248/20704 co-relation queries the response was YES. [2025-03-13 22:16:08,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34824 conditions, 11395 events. 3073/11395 cut-off events. For 20248/20704 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 111221 event pairs, 346 based on Foata normal form. 119/11359 useless extension candidates. Maximal degree in co-relation 34524. Up to 1851 conditions per place. [2025-03-13 22:16:08,468 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 137 selfloop transitions, 28 changer transitions 4/549 dead transitions. [2025-03-13 22:16:08,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 549 transitions, 3825 flow [2025-03-13 22:16:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:16:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:16:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-13 22:16:08,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-13 22:16:08,469 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 10 states and 1631 transitions. [2025-03-13 22:16:08,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 549 transitions, 3825 flow [2025-03-13 22:16:08,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 549 transitions, 3746 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-03-13 22:16:08,563 INFO L231 Difference]: Finished difference. Result has 322 places, 465 transitions, 3021 flow [2025-03-13 22:16:08,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3021, PETRI_PLACES=322, PETRI_TRANSITIONS=465} [2025-03-13 22:16:08,564 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 140 predicate places. [2025-03-13 22:16:08,565 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 465 transitions, 3021 flow [2025-03-13 22:16:08,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:08,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:08,565 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] [2025-03-13 22:16:08,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-13 22:16:08,565 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-13 22:16:08,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1516329702, now seen corresponding path program 5 times [2025-03-13 22:16:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:08,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992447035] [2025-03-13 22:16:08,566 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:08,586 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:08,607 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:08,607 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:08,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-13 22:16:09,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992447035] [2025-03-13 22:16:09,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992447035] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:16:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735044406] [2025-03-13 22:16:09,197 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:09,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:16:09,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:16:09,199 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) [2025-03-13 22:16:09,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-13 22:16:09,266 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:09,324 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:09,325 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:09,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:09,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-13 22:16:09,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:16:09,564 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 [2025-03-13 22:16:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:09,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:16:09,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735044406] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:09,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-13 22:16:09,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-13 22:16:09,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987240389] [2025-03-13 22:16:09,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:09,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:09,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:09,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:09,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-13 22:16:10,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:10,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 465 transitions, 3021 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:10,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:10,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:10,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:12,513 INFO L124 PetriNetUnfolderBase]: 3406/12720 cut-off events. [2025-03-13 22:16:12,513 INFO L125 PetriNetUnfolderBase]: For 25302/25896 co-relation queries the response was YES. [2025-03-13 22:16:12,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39483 conditions, 12720 events. 3406/12720 cut-off events. For 25302/25896 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 126906 event pairs, 382 based on Foata normal form. 112/12645 useless extension candidates. Maximal degree in co-relation 39177. Up to 1959 conditions per place. [2025-03-13 22:16:12,594 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 136 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2025-03-13 22:16:12,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 546 transitions, 4004 flow [2025-03-13 22:16:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:16:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:16:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1628 transitions. [2025-03-13 22:16:12,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2025-03-13 22:16:12,596 INFO L175 Difference]: Start difference. First operand has 322 places, 465 transitions, 3021 flow. Second operand 10 states and 1628 transitions. [2025-03-13 22:16:12,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 546 transitions, 4004 flow [2025-03-13 22:16:12,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 546 transitions, 3911 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-03-13 22:16:12,693 INFO L231 Difference]: Finished difference. Result has 333 places, 480 transitions, 3259 flow [2025-03-13 22:16:12,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2978, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3259, PETRI_PLACES=333, PETRI_TRANSITIONS=480} [2025-03-13 22:16:12,693 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 151 predicate places. [2025-03-13 22:16:12,693 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 480 transitions, 3259 flow [2025-03-13 22:16:12,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:12,694 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:12,694 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] [2025-03-13 22:16:12,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-13 22:16:12,894 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,SelfDestructingSolverStorable13 [2025-03-13 22:16:12,895 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)] === [2025-03-13 22:16:12,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1220419554, now seen corresponding path program 6 times [2025-03-13 22:16:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002430706] [2025-03-13 22:16:12,896 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 22:16:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:12,907 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:12,914 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:12,916 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 22:16:12,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:13,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:13,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002430706] [2025-03-13 22:16:13,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002430706] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:13,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:13,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908611851] [2025-03-13 22:16:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:13,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:13,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:13,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:13,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:13,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:13,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 480 transitions, 3259 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:13,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:13,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:13,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:15,915 INFO L124 PetriNetUnfolderBase]: 3725/13728 cut-off events. [2025-03-13 22:16:15,915 INFO L125 PetriNetUnfolderBase]: For 31550/32164 co-relation queries the response was YES. [2025-03-13 22:16:15,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43944 conditions, 13728 events. 3725/13728 cut-off events. For 31550/32164 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 138859 event pairs, 386 based on Foata normal form. 120/13668 useless extension candidates. Maximal degree in co-relation 43632. Up to 2232 conditions per place. [2025-03-13 22:16:16,021 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 154 selfloop transitions, 34 changer transitions 2/570 dead transitions. [2025-03-13 22:16:16,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 570 transitions, 4410 flow [2025-03-13 22:16:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-13 22:16:16,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-13 22:16:16,022 INFO L175 Difference]: Start difference. First operand has 333 places, 480 transitions, 3259 flow. Second operand 9 states and 1479 transitions. [2025-03-13 22:16:16,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 570 transitions, 4410 flow [2025-03-13 22:16:16,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 570 transitions, 4312 flow, removed 27 selfloop flow, removed 3 redundant places. [2025-03-13 22:16:16,149 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2025-03-13 22:16:16,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3504, PETRI_PLACES=344, PETRI_TRANSITIONS=495} [2025-03-13 22:16:16,149 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2025-03-13 22:16:16,149 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2025-03-13 22:16:16,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:16,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:16,150 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] [2025-03-13 22:16:16,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-13 22:16:16,150 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)] === [2025-03-13 22:16:16,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1576277874, now seen corresponding path program 7 times [2025-03-13 22:16:16,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:16,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514355407] [2025-03-13 22:16:16,151 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-13 22:16:16,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:16,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-13 22:16:16,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:16,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:16:16,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514355407] [2025-03-13 22:16:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514355407] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:16,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:16,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:16,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267215225] [2025-03-13 22:16:16,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:16,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:16,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:16,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:16,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:17,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:17,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 495 transitions, 3504 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:17,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:17,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:17,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:19,126 INFO L124 PetriNetUnfolderBase]: 4068/15087 cut-off events. [2025-03-13 22:16:19,127 INFO L125 PetriNetUnfolderBase]: For 39976/40637 co-relation queries the response was YES. [2025-03-13 22:16:19,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49325 conditions, 15087 events. 4068/15087 cut-off events. For 39976/40637 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 155897 event pairs, 478 based on Foata normal form. 107/14981 useless extension candidates. Maximal degree in co-relation 49008. Up to 2363 conditions per place. [2025-03-13 22:16:19,263 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 150 selfloop transitions, 36 changer transitions 0/566 dead transitions. [2025-03-13 22:16:19,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 566 transitions, 4606 flow [2025-03-13 22:16:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:19,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2025-03-13 22:16:19,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2025-03-13 22:16:19,265 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1477 transitions. [2025-03-13 22:16:19,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 566 transitions, 4606 flow [2025-03-13 22:16:19,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 566 transitions, 4506 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-03-13 22:16:19,427 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3855 flow [2025-03-13 22:16:19,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3855, PETRI_PLACES=357, PETRI_TRANSITIONS=514} [2025-03-13 22:16:19,428 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2025-03-13 22:16:19,428 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3855 flow [2025-03-13 22:16:19,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:19,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:19,428 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] [2025-03-13 22:16:19,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-13 22:16:19,429 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)] === [2025-03-13 22:16:19,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2116917232, now seen corresponding path program 8 times [2025-03-13 22:16:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:19,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321847682] [2025-03-13 22:16:19,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:16:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:19,437 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:16:19,443 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:19,443 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:19,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:19,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:19,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321847682] [2025-03-13 22:16:19,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321847682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:19,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:19,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:19,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266774184] [2025-03-13 22:16:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:19,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:19,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:19,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:19,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:20,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:20,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 514 transitions, 3855 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:20,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:20,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:20,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:22,450 INFO L124 PetriNetUnfolderBase]: 4671/16951 cut-off events. [2025-03-13 22:16:22,451 INFO L125 PetriNetUnfolderBase]: For 51043/51927 co-relation queries the response was YES. [2025-03-13 22:16:22,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57058 conditions, 16951 events. 4671/16951 cut-off events. For 51043/51927 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 179812 event pairs, 469 based on Foata normal form. 137/16875 useless extension candidates. Maximal degree in co-relation 56734. Up to 2778 conditions per place. [2025-03-13 22:16:22,569 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 173 selfloop transitions, 45 changer transitions 0/598 dead transitions. [2025-03-13 22:16:22,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 598 transitions, 5172 flow [2025-03-13 22:16:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-13 22:16:22,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-13 22:16:22,571 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3855 flow. Second operand 9 states and 1481 transitions. [2025-03-13 22:16:22,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 598 transitions, 5172 flow [2025-03-13 22:16:22,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 598 transitions, 5068 flow, removed 52 selfloop flow, removed 0 redundant places. [2025-03-13 22:16:22,775 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4209 flow [2025-03-13 22:16:22,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4209, PETRI_PLACES=372, PETRI_TRANSITIONS=532} [2025-03-13 22:16:22,776 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2025-03-13 22:16:22,776 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4209 flow [2025-03-13 22:16:22,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:22,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:22,776 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] [2025-03-13 22:16:22,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-13 22:16:22,777 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)] === [2025-03-13 22:16:22,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash 487230494, now seen corresponding path program 9 times [2025-03-13 22:16:22,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:22,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122069468] [2025-03-13 22:16:22,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:22,786 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:22,790 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:22,790 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:22,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:22,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:22,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122069468] [2025-03-13 22:16:22,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122069468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:22,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:22,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324108467] [2025-03-13 22:16:22,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:22,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:22,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:22,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:22,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:23,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:23,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 532 transitions, 4209 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:23,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:23,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:23,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:26,376 INFO L124 PetriNetUnfolderBase]: 4663/17065 cut-off events. [2025-03-13 22:16:26,376 INFO L125 PetriNetUnfolderBase]: For 56745/57647 co-relation queries the response was YES. [2025-03-13 22:16:26,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17065 events. 4663/17065 cut-off events. For 56745/57647 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 181799 event pairs, 445 based on Foata normal form. 223/17085 useless extension candidates. Maximal degree in co-relation 57796. Up to 2699 conditions per place. [2025-03-13 22:16:26,522 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 185 selfloop transitions, 58 changer transitions 0/623 dead transitions. [2025-03-13 22:16:26,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 623 transitions, 5535 flow [2025-03-13 22:16:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2025-03-13 22:16:26,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-03-13 22:16:26,524 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4209 flow. Second operand 9 states and 1470 transitions. [2025-03-13 22:16:26,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 623 transitions, 5535 flow [2025-03-13 22:16:26,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 623 transitions, 5447 flow, removed 44 selfloop flow, removed 0 redundant places. [2025-03-13 22:16:26,777 INFO L231 Difference]: Finished difference. Result has 384 places, 544 transitions, 4449 flow [2025-03-13 22:16:26,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4123, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4449, PETRI_PLACES=384, PETRI_TRANSITIONS=544} [2025-03-13 22:16:26,777 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 202 predicate places. [2025-03-13 22:16:26,777 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 544 transitions, 4449 flow [2025-03-13 22:16:26,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:26,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:26,778 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] [2025-03-13 22:16:26,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-13 22:16:26,778 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)] === [2025-03-13 22:16:26,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1094714860, now seen corresponding path program 10 times [2025-03-13 22:16:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053324129] [2025-03-13 22:16:26,779 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 22:16:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:26,791 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:16:26,801 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:26,802 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-13 22:16:26,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:27,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:27,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053324129] [2025-03-13 22:16:27,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053324129] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:27,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:27,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-13 22:16:27,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673420994] [2025-03-13 22:16:27,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:27,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:27,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:27,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:27,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-13 22:16:28,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:28,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 544 transitions, 4449 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:28,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:28,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:28,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:31,039 INFO L124 PetriNetUnfolderBase]: 4388/16276 cut-off events. [2025-03-13 22:16:31,039 INFO L125 PetriNetUnfolderBase]: For 58688/59591 co-relation queries the response was YES. [2025-03-13 22:16:31,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56085 conditions, 16276 events. 4388/16276 cut-off events. For 58688/59591 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 171668 event pairs, 426 based on Foata normal form. 205/16278 useless extension candidates. Maximal degree in co-relation 55748. Up to 2535 conditions per place. [2025-03-13 22:16:31,154 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 185 selfloop transitions, 55 changer transitions 0/620 dead transitions. [2025-03-13 22:16:31,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 620 transitions, 5663 flow [2025-03-13 22:16:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:16:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:16:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2025-03-13 22:16:31,157 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906593406593407 [2025-03-13 22:16:31,157 INFO L175 Difference]: Start difference. First operand has 384 places, 544 transitions, 4449 flow. Second operand 10 states and 1621 transitions. [2025-03-13 22:16:31,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 620 transitions, 5663 flow [2025-03-13 22:16:31,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 620 transitions, 5481 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-13 22:16:31,370 INFO L231 Difference]: Finished difference. Result has 392 places, 547 transitions, 4483 flow [2025-03-13 22:16:31,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4279, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4483, PETRI_PLACES=392, PETRI_TRANSITIONS=547} [2025-03-13 22:16:31,370 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 210 predicate places. [2025-03-13 22:16:31,370 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 547 transitions, 4483 flow [2025-03-13 22:16:31,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:31,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:31,371 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] [2025-03-13 22:16:31,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-13 22:16:31,371 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)] === [2025-03-13 22:16:31,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1274962040, now seen corresponding path program 11 times [2025-03-13 22:16:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:31,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597898722] [2025-03-13 22:16:31,372 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:31,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:31,380 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:31,387 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:31,387 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:31,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-13 22:16:31,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:31,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597898722] [2025-03-13 22:16:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597898722] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:16:31,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469063090] [2025-03-13 22:16:31,677 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:31,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:16:31,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:16:31,679 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) [2025-03-13 22:16:31,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-13 22:16:31,746 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:31,786 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:31,786 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:31,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:31,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-13 22:16:31,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:16:31,969 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 [2025-03-13 22:16:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:31,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:16:31,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469063090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:31,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-13 22:16:31,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-13 22:16:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966607441] [2025-03-13 22:16:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:31,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:31,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:31,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:31,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-13 22:16:32,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:32,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 547 transitions, 4483 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:32,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:32,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:32,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:35,752 INFO L124 PetriNetUnfolderBase]: 4390/16303 cut-off events. [2025-03-13 22:16:35,752 INFO L125 PetriNetUnfolderBase]: For 56430/57210 co-relation queries the response was YES. [2025-03-13 22:16:35,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56006 conditions, 16303 events. 4390/16303 cut-off events. For 56430/57210 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 171969 event pairs, 450 based on Foata normal form. 175/16273 useless extension candidates. Maximal degree in co-relation 55665. Up to 2566 conditions per place. [2025-03-13 22:16:35,875 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 179 selfloop transitions, 61 changer transitions 0/620 dead transitions. [2025-03-13 22:16:35,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 620 transitions, 5647 flow [2025-03-13 22:16:35,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:16:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:16:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-13 22:16:35,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-13 22:16:35,876 INFO L175 Difference]: Start difference. First operand has 392 places, 547 transitions, 4483 flow. Second operand 10 states and 1624 transitions. [2025-03-13 22:16:35,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 620 transitions, 5647 flow [2025-03-13 22:16:36,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 620 transitions, 5529 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-03-13 22:16:36,226 INFO L231 Difference]: Finished difference. Result has 400 places, 558 transitions, 4735 flow [2025-03-13 22:16:36,226 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4383, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4735, PETRI_PLACES=400, PETRI_TRANSITIONS=558} [2025-03-13 22:16:36,226 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 218 predicate places. [2025-03-13 22:16:36,227 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 558 transitions, 4735 flow [2025-03-13 22:16:36,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:36,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:36,227 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] [2025-03-13 22:16:36,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-13 22:16:36,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:16:36,428 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)] === [2025-03-13 22:16:36,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2102762288, now seen corresponding path program 12 times [2025-03-13 22:16:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:36,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363747952] [2025-03-13 22:16:36,429 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 22:16:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:36,437 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:36,440 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:36,440 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 22:16:36,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363747952] [2025-03-13 22:16:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363747952] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:36,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:36,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998513019] [2025-03-13 22:16:36,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:36,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:36,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:36,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:36,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:37,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:37,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 558 transitions, 4735 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:37,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:37,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:37,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:40,194 INFO L124 PetriNetUnfolderBase]: 4679/17288 cut-off events. [2025-03-13 22:16:40,194 INFO L125 PetriNetUnfolderBase]: For 63711/64533 co-relation queries the response was YES. [2025-03-13 22:16:40,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59966 conditions, 17288 events. 4679/17288 cut-off events. For 63711/64533 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 184587 event pairs, 475 based on Foata normal form. 163/17232 useless extension candidates. Maximal degree in co-relation 59620. Up to 2741 conditions per place. [2025-03-13 22:16:40,325 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 203 selfloop transitions, 49 changer transitions 0/632 dead transitions. [2025-03-13 22:16:40,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 632 transitions, 6071 flow [2025-03-13 22:16:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-13 22:16:40,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-13 22:16:40,327 INFO L175 Difference]: Start difference. First operand has 400 places, 558 transitions, 4735 flow. Second operand 9 states and 1479 transitions. [2025-03-13 22:16:40,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 632 transitions, 6071 flow [2025-03-13 22:16:40,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 632 transitions, 5865 flow, removed 73 selfloop flow, removed 4 redundant places. [2025-03-13 22:16:40,578 INFO L231 Difference]: Finished difference. Result has 408 places, 568 transitions, 4915 flow [2025-03-13 22:16:40,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4627, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4915, PETRI_PLACES=408, PETRI_TRANSITIONS=568} [2025-03-13 22:16:40,579 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2025-03-13 22:16:40,579 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 568 transitions, 4915 flow [2025-03-13 22:16:40,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:40,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:40,580 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] [2025-03-13 22:16:40,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-13 22:16:40,580 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)] === [2025-03-13 22:16:40,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:40,581 INFO L85 PathProgramCache]: Analyzing trace with hash -278668322, now seen corresponding path program 13 times [2025-03-13 22:16:40,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:40,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235273931] [2025-03-13 22:16:40,581 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-13 22:16:40,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:40,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-13 22:16:40,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:40,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:16:40,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:40,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:40,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235273931] [2025-03-13 22:16:40,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235273931] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:40,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:40,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465037127] [2025-03-13 22:16:40,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:40,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:40,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:40,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:41,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:41,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 568 transitions, 4915 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:41,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:41,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:41,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:44,938 INFO L124 PetriNetUnfolderBase]: 4685/17399 cut-off events. [2025-03-13 22:16:44,938 INFO L125 PetriNetUnfolderBase]: For 62894/63727 co-relation queries the response was YES. [2025-03-13 22:16:45,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60279 conditions, 17399 events. 4685/17399 cut-off events. For 62894/63727 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186392 event pairs, 453 based on Foata normal form. 184/17371 useless extension candidates. Maximal degree in co-relation 59930. Up to 2755 conditions per place. [2025-03-13 22:16:45,063 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 192 selfloop transitions, 66 changer transitions 0/638 dead transitions. [2025-03-13 22:16:45,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 638 transitions, 6128 flow [2025-03-13 22:16:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:45,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2025-03-13 22:16:45,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2025-03-13 22:16:45,065 INFO L175 Difference]: Start difference. First operand has 408 places, 568 transitions, 4915 flow. Second operand 9 states and 1473 transitions. [2025-03-13 22:16:45,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 638 transitions, 6128 flow [2025-03-13 22:16:45,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 638 transitions, 6031 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-13 22:16:45,315 INFO L231 Difference]: Finished difference. Result has 415 places, 577 transitions, 5143 flow [2025-03-13 22:16:45,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4827, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5143, PETRI_PLACES=415, PETRI_TRANSITIONS=577} [2025-03-13 22:16:45,316 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 233 predicate places. [2025-03-13 22:16:45,316 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 577 transitions, 5143 flow [2025-03-13 22:16:45,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:45,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:45,317 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] [2025-03-13 22:16:45,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-13 22:16:45,317 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)] === [2025-03-13 22:16:45,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:45,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1673346218, now seen corresponding path program 14 times [2025-03-13 22:16:45,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:45,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521583511] [2025-03-13 22:16:45,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:16:45,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:45,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:16:45,329 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:45,329 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:16:45,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:45,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:45,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521583511] [2025-03-13 22:16:45,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521583511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:45,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:45,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:45,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229016323] [2025-03-13 22:16:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:45,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:45,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:45,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:45,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:46,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:46,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 577 transitions, 5143 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:46,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:46,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:46,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:48,914 INFO L124 PetriNetUnfolderBase]: 4684/17407 cut-off events. [2025-03-13 22:16:48,914 INFO L125 PetriNetUnfolderBase]: For 64298/65195 co-relation queries the response was YES. [2025-03-13 22:16:49,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60504 conditions, 17407 events. 4684/17407 cut-off events. For 64298/65195 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186550 event pairs, 451 based on Foata normal form. 181/17374 useless extension candidates. Maximal degree in co-relation 60152. Up to 2755 conditions per place. [2025-03-13 22:16:49,073 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 202 selfloop transitions, 62 changer transitions 0/644 dead transitions. [2025-03-13 22:16:49,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 644 transitions, 6353 flow [2025-03-13 22:16:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:49,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2025-03-13 22:16:49,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8998778998778999 [2025-03-13 22:16:49,075 INFO L175 Difference]: Start difference. First operand has 415 places, 577 transitions, 5143 flow. Second operand 9 states and 1474 transitions. [2025-03-13 22:16:49,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 644 transitions, 6353 flow [2025-03-13 22:16:49,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 644 transitions, 6221 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-03-13 22:16:49,350 INFO L231 Difference]: Finished difference. Result has 422 places, 585 transitions, 5341 flow [2025-03-13 22:16:49,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5019, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5341, PETRI_PLACES=422, PETRI_TRANSITIONS=585} [2025-03-13 22:16:49,350 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 240 predicate places. [2025-03-13 22:16:49,350 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 585 transitions, 5341 flow [2025-03-13 22:16:49,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:49,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:49,351 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] [2025-03-13 22:16:49,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-13 22:16:49,351 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)] === [2025-03-13 22:16:49,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1515371174, now seen corresponding path program 15 times [2025-03-13 22:16:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:49,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859753374] [2025-03-13 22:16:49,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-13 22:16:49,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:49,359 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:49,363 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:16:49,363 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-13 22:16:49,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:49,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:49,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859753374] [2025-03-13 22:16:49,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859753374] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:49,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:49,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:16:49,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457492921] [2025-03-13 22:16:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:49,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:16:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:49,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:16:49,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:16:50,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:50,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 585 transitions, 5341 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:50,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:50,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:50,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:53,052 INFO L124 PetriNetUnfolderBase]: 4411/16574 cut-off events. [2025-03-13 22:16:53,053 INFO L125 PetriNetUnfolderBase]: For 61535/62336 co-relation queries the response was YES. [2025-03-13 22:16:53,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57539 conditions, 16574 events. 4411/16574 cut-off events. For 61535/62336 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 175856 event pairs, 450 based on Foata normal form. 164/16532 useless extension candidates. Maximal degree in co-relation 57183. Up to 2594 conditions per place. [2025-03-13 22:16:53,186 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 198 selfloop transitions, 64 changer transitions 0/642 dead transitions. [2025-03-13 22:16:53,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 642 transitions, 6405 flow [2025-03-13 22:16:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-13 22:16:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-13 22:16:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2025-03-13 22:16:53,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2025-03-13 22:16:53,188 INFO L175 Difference]: Start difference. First operand has 422 places, 585 transitions, 5341 flow. Second operand 9 states and 1476 transitions. [2025-03-13 22:16:53,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 642 transitions, 6405 flow [2025-03-13 22:16:53,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 642 transitions, 6289 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-13 22:16:53,475 INFO L231 Difference]: Finished difference. Result has 429 places, 592 transitions, 5531 flow [2025-03-13 22:16:53,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5183, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5531, PETRI_PLACES=429, PETRI_TRANSITIONS=592} [2025-03-13 22:16:53,475 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 247 predicate places. [2025-03-13 22:16:53,475 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 592 transitions, 5531 flow [2025-03-13 22:16:53,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:53,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:53,476 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] [2025-03-13 22:16:53,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-13 22:16:53,476 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)] === [2025-03-13 22:16:53,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash 321531544, now seen corresponding path program 16 times [2025-03-13 22:16:53,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:53,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954993851] [2025-03-13 22:16:53,477 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-13 22:16:53,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:53,488 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-13 22:16:53,498 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:53,499 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-13 22:16:53,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:53,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:53,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954993851] [2025-03-13 22:16:53,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954993851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:53,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:16:53,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-13 22:16:53,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677120541] [2025-03-13 22:16:53,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:53,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:53,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:53,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:53,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-13 22:16:54,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:54,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 592 transitions, 5531 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:54,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:54,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:54,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:16:57,911 INFO L124 PetriNetUnfolderBase]: 4134/15707 cut-off events. [2025-03-13 22:16:57,911 INFO L125 PetriNetUnfolderBase]: For 58007/58797 co-relation queries the response was YES. [2025-03-13 22:16:57,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54239 conditions, 15707 events. 4134/15707 cut-off events. For 58007/58797 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 164596 event pairs, 455 based on Foata normal form. 155/15653 useless extension candidates. Maximal degree in co-relation 53880. Up to 2426 conditions per place. [2025-03-13 22:16:58,027 INFO L140 encePairwiseOnDemand]: 165/182 looper letters, 204 selfloop transitions, 62 changer transitions 0/646 dead transitions. [2025-03-13 22:16:58,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 646 transitions, 6577 flow [2025-03-13 22:16:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:16:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:16:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-13 22:16:58,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-13 22:16:58,029 INFO L175 Difference]: Start difference. First operand has 429 places, 592 transitions, 5531 flow. Second operand 10 states and 1631 transitions. [2025-03-13 22:16:58,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 646 transitions, 6577 flow [2025-03-13 22:16:58,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 646 transitions, 6403 flow, removed 36 selfloop flow, removed 5 redundant places. [2025-03-13 22:16:58,274 INFO L231 Difference]: Finished difference. Result has 436 places, 599 transitions, 5646 flow [2025-03-13 22:16:58,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5319, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5646, PETRI_PLACES=436, PETRI_TRANSITIONS=599} [2025-03-13 22:16:58,275 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 254 predicate places. [2025-03-13 22:16:58,275 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 599 transitions, 5646 flow [2025-03-13 22:16:58,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:58,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:16:58,276 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] [2025-03-13 22:16:58,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-13 22:16:58,276 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)] === [2025-03-13 22:16:58,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:16:58,277 INFO L85 PathProgramCache]: Analyzing trace with hash -652315696, now seen corresponding path program 17 times [2025-03-13 22:16:58,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:16:58,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589414444] [2025-03-13 22:16:58,277 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:58,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:16:58,285 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:58,290 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:58,290 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:58,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-13 22:16:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:16:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589414444] [2025-03-13 22:16:58,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589414444] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:16:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250374085] [2025-03-13 22:16:58,745 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-13 22:16:58,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:16:58,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:16:58,748 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) [2025-03-13 22:16:58,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-13 22:16:58,821 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:16:58,867 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:16:58,867 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-13 22:16:58,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:16:58,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-13 22:16:58,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:16:59,009 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 [2025-03-13 22:16:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:16:59,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:16:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250374085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:16:59,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-13 22:16:59,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-13 22:16:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628519314] [2025-03-13 22:16:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:16:59,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-13 22:16:59,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:16:59,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-13 22:16:59,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2025-03-13 22:16:59,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:16:59,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 599 transitions, 5646 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:16:59,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:16:59,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:16:59,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:17:02,495 INFO L124 PetriNetUnfolderBase]: 4138/15721 cut-off events. [2025-03-13 22:17:02,495 INFO L125 PetriNetUnfolderBase]: For 57287/58021 co-relation queries the response was YES. [2025-03-13 22:17:02,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54293 conditions, 15721 events. 4138/15721 cut-off events. For 57287/58021 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 164731 event pairs, 487 based on Foata normal form. 163/15675 useless extension candidates. Maximal degree in co-relation 53930. Up to 2448 conditions per place. [2025-03-13 22:17:02,618 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 189 selfloop transitions, 87 changer transitions 0/656 dead transitions. [2025-03-13 22:17:02,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 656 transitions, 6791 flow [2025-03-13 22:17:02,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-13 22:17:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-13 22:17:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-13 22:17:02,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-13 22:17:02,619 INFO L175 Difference]: Start difference. First operand has 436 places, 599 transitions, 5646 flow. Second operand 10 states and 1624 transitions. [2025-03-13 22:17:02,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 656 transitions, 6791 flow [2025-03-13 22:17:02,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 656 transitions, 6626 flow, removed 24 selfloop flow, removed 6 redundant places. [2025-03-13 22:17:02,878 INFO L231 Difference]: Finished difference. Result has 445 places, 613 transitions, 6051 flow [2025-03-13 22:17:02,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5499, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6051, PETRI_PLACES=445, PETRI_TRANSITIONS=613} [2025-03-13 22:17:02,878 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 263 predicate places. [2025-03-13 22:17:02,878 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 613 transitions, 6051 flow [2025-03-13 22:17:02,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:17:02,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:17:02,879 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] [2025-03-13 22:17:02,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-13 22:17:03,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:17:03,079 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)] === [2025-03-13 22:17:03,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:17:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 10071268, now seen corresponding path program 18 times [2025-03-13 22:17:03,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:17:03,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54738379] [2025-03-13 22:17:03,081 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-13 22:17:03,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:17:03,089 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-13 22:17:03,092 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-13 22:17:03,092 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-13 22:17:03,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:17:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-13 22:17:03,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:17:03,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54738379] [2025-03-13 22:17:03,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54738379] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:17:03,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:17:03,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-13 22:17:03,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313703594] [2025-03-13 22:17:03,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:17:03,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-13 22:17:03,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:17:03,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-13 22:17:03,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-13 22:17:03,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-13 22:17:03,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 613 transitions, 6051 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:17:03,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:17:03,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-13 22:17:03,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand