./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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_15-list_entry_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:35:32,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:35:32,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:35:32,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:35:32,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:35:32,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:35:32,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:35:32,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:35:32,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:35:32,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:35:32,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:35:32,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:35:32,815 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:35:32,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:35:32,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:35:32,815 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:35:32,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:35:32,816 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:35:32,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:32,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:35:32,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:35:32,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:35:32,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:35:32,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:35:32,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:35:32,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:35:32,819 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 -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2025-03-14 01:35:33,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:35:33,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:35:33,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:35:33,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:35:33,049 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:35:33,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-03-14 01:35:34,200 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376358135/6995eadf9eb14db5a6065baac01aa80c/FLAGeaa2a2484 [2025-03-14 01:35:34,499 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:35:34,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-03-14 01:35:34,527 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376358135/6995eadf9eb14db5a6065baac01aa80c/FLAGeaa2a2484 [2025-03-14 01:35:34,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376358135/6995eadf9eb14db5a6065baac01aa80c [2025-03-14 01:35:34,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:35:34,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:35:34,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:34,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:35:34,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:35:34,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb03c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34, skipping insertion in model container [2025-03-14 01:35:34,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:35:34,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:34,843 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:35:34,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:34,905 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:35:34,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34 WrapperNode [2025-03-14 01:35:34,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:34,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:34,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:35:34,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:35:34,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,937 INFO L138 Inliner]: procedures = 186, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2025-03-14 01:35:34,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:34,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:35:34,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:35:34,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:35:34,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:35:34,955 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:35:34,955 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:35:34,955 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:35:34,956 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (1/1) ... [2025-03-14 01:35:34,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:34,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:34,987 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) [2025-03-14 01:35:34,992 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 [2025-03-14 01:35:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:35:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:35:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:35:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 01:35:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:35:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:35:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:35:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:35:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:35:35,009 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:35:35,081 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:35:35,083 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:35:35,270 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:35:35,272 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:35:35,272 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:35:35,298 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:35:35,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:35 BoogieIcfgContainer [2025-03-14 01:35:35,299 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:35:35,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:35:35,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:35:35,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:35:35,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:35:34" (1/3) ... [2025-03-14 01:35:35,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b5f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:35, skipping insertion in model container [2025-03-14 01:35:35,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:34" (2/3) ... [2025-03-14 01:35:35,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b5f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:35, skipping insertion in model container [2025-03-14 01:35:35,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:35" (3/3) ... [2025-03-14 01:35:35,309 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2025-03-14 01:35:35,321 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:35:35,323 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_15-list_entry_nr.i that has 2 procedures, 112 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2025-03-14 01:35:35,323 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:35:35,389 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:35:35,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 111 transitions, 226 flow [2025-03-14 01:35:35,453 INFO L124 PetriNetUnfolderBase]: 0/110 cut-off events. [2025-03-14 01:35:35,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:35,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-14 01:35:35,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 111 transitions, 226 flow [2025-03-14 01:35:35,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 110 transitions, 223 flow [2025-03-14 01:35:35,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:35:35,477 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;@6dfae009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:35:35,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-14 01:35:35,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:35:35,481 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-14 01:35:35,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:35,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:35,482 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:35,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:35,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash -854684129, now seen corresponding path program 1 times [2025-03-14 01:35:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:35,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881449423] [2025-03-14 01:35:35,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:35,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:35,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-14 01:35:35,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-14 01:35:35,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:35,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:35,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881449423] [2025-03-14 01:35:35,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881449423] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:35,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:35:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052923787] [2025-03-14 01:35:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:35,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:35,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:35,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:35,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-03-14 01:35:35,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-03-14 01:35:35,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:35,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-03-14 01:35:35,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:35,797 INFO L124 PetriNetUnfolderBase]: 12/257 cut-off events. [2025-03-14 01:35:35,799 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:35,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 257 events. 12/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 718 event pairs, 12 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 252. Up to 37 conditions per place. [2025-03-14 01:35:35,803 INFO L140 encePairwiseOnDemand]: 108/111 looper letters, 12 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2025-03-14 01:35:35,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 249 flow [2025-03-14 01:35:35,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-03-14 01:35:35,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-03-14 01:35:35,815 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 223 flow. Second operand 3 states and 303 transitions. [2025-03-14 01:35:35,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 249 flow [2025-03-14 01:35:35,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:35,821 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 224 flow [2025-03-14 01:35:35,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2025-03-14 01:35:35,827 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2025-03-14 01:35:35,827 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 224 flow [2025-03-14 01:35:35,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-03-14 01:35:35,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:35,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:35,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:35:35,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:35,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1762184962, now seen corresponding path program 1 times [2025-03-14 01:35:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962854692] [2025-03-14 01:35:35,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:35,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-14 01:35:35,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-14 01:35:35,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:35,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962854692] [2025-03-14 01:35:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962854692] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:35,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:35,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:35:35,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512854648] [2025-03-14 01:35:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:35,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:35,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:35,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:35,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:35,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-03-14 01:35:35,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-03-14 01:35:35,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:35,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-03-14 01:35:35,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:36,006 INFO L124 PetriNetUnfolderBase]: 16/291 cut-off events. [2025-03-14 01:35:36,006 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:36,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 291 events. 16/291 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1017 event pairs, 16 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 323. Up to 43 conditions per place. [2025-03-14 01:35:36,010 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 11 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2025-03-14 01:35:36,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 106 transitions, 242 flow [2025-03-14 01:35:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-03-14 01:35:36,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-03-14 01:35:36,012 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 224 flow. Second operand 3 states and 303 transitions. [2025-03-14 01:35:36,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 106 transitions, 242 flow [2025-03-14 01:35:36,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:35:36,014 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 216 flow [2025-03-14 01:35:36,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2025-03-14 01:35:36,014 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, -3 predicate places. [2025-03-14 01:35:36,016 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 216 flow [2025-03-14 01:35:36,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-03-14 01:35:36,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:36,017 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] [2025-03-14 01:35:36,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:35:36,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2094830680, now seen corresponding path program 1 times [2025-03-14 01:35:36,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:36,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032448027] [2025-03-14 01:35:36,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:36,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:36,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-14 01:35:36,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-14 01:35:36,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:36,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:36,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:36,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032448027] [2025-03-14 01:35:36,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032448027] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:36,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:36,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:36,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530441495] [2025-03-14 01:35:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:36,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:36,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:36,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:36,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 111 [2025-03-14 01:35:36,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2025-03-14 01:35:36,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:36,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 111 [2025-03-14 01:35:36,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:36,633 INFO L124 PetriNetUnfolderBase]: 100/544 cut-off events. [2025-03-14 01:35:36,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:36,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 544 events. 100/544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2872 event pairs, 100 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 763. Up to 227 conditions per place. [2025-03-14 01:35:36,637 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 26 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2025-03-14 01:35:36,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 105 transitions, 276 flow [2025-03-14 01:35:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:36,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2025-03-14 01:35:36,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7597597597597597 [2025-03-14 01:35:36,639 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 216 flow. Second operand 6 states and 506 transitions. [2025-03-14 01:35:36,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 105 transitions, 276 flow [2025-03-14 01:35:36,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 105 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:36,642 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 223 flow [2025-03-14 01:35:36,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2025-03-14 01:35:36,644 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2025-03-14 01:35:36,644 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 223 flow [2025-03-14 01:35:36,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2025-03-14 01:35:36,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:36,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:36,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:35:36,645 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:36,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1257354314, now seen corresponding path program 1 times [2025-03-14 01:35:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:36,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776006042] [2025-03-14 01:35:36,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:36,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-14 01:35:36,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-14 01:35:36,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:36,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:36,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776006042] [2025-03-14 01:35:36,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776006042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:36,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:36,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:36,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866062587] [2025-03-14 01:35:36,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:36,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:36,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:36,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:37,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2025-03-14 01:35:37,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-14 01:35:37,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:37,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2025-03-14 01:35:37,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:37,190 INFO L124 PetriNetUnfolderBase]: 114/573 cut-off events. [2025-03-14 01:35:37,191 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:37,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 573 events. 114/573 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3163 event pairs, 61 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 826. Up to 211 conditions per place. [2025-03-14 01:35:37,194 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 34 selfloop transitions, 22 changer transitions 0/134 dead transitions. [2025-03-14 01:35:37,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 134 transitions, 393 flow [2025-03-14 01:35:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2025-03-14 01:35:37,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2025-03-14 01:35:37,196 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 223 flow. Second operand 6 states and 561 transitions. [2025-03-14 01:35:37,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 134 transitions, 393 flow [2025-03-14 01:35:37,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 134 transitions, 383 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:35:37,201 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 363 flow [2025-03-14 01:35:37,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2025-03-14 01:35:37,201 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2025-03-14 01:35:37,201 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 363 flow [2025-03-14 01:35:37,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-14 01:35:37,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:37,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:37,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:35:37,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:37,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash -698275047, now seen corresponding path program 1 times [2025-03-14 01:35:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409189994] [2025-03-14 01:35:37,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:37,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-14 01:35:37,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-14 01:35:37,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:37,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:37,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409189994] [2025-03-14 01:35:37,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409189994] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:37,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:37,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:37,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344910970] [2025-03-14 01:35:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:37,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:37,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:37,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:37,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:37,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2025-03-14 01:35:37,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-14 01:35:37,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:37,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2025-03-14 01:35:37,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:37,698 INFO L124 PetriNetUnfolderBase]: 152/680 cut-off events. [2025-03-14 01:35:37,698 INFO L125 PetriNetUnfolderBase]: For 143/163 co-relation queries the response was YES. [2025-03-14 01:35:37,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 680 events. 152/680 cut-off events. For 143/163 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4005 event pairs, 61 based on Foata normal form. 5/655 useless extension candidates. Maximal degree in co-relation 1181. Up to 268 conditions per place. [2025-03-14 01:35:37,702 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 47 selfloop transitions, 26 changer transitions 0/155 dead transitions. [2025-03-14 01:35:37,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 155 transitions, 585 flow [2025-03-14 01:35:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:37,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2025-03-14 01:35:37,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2025-03-14 01:35:37,705 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 363 flow. Second operand 6 states and 561 transitions. [2025-03-14 01:35:37,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 155 transitions, 585 flow [2025-03-14 01:35:37,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 155 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:37,709 INFO L231 Difference]: Finished difference. Result has 129 places, 147 transitions, 547 flow [2025-03-14 01:35:37,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=547, PETRI_PLACES=129, PETRI_TRANSITIONS=147} [2025-03-14 01:35:37,711 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 15 predicate places. [2025-03-14 01:35:37,713 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 147 transitions, 547 flow [2025-03-14 01:35:37,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-03-14 01:35:37,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:37,714 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:37,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:35:37,714 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:37,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash 774684090, now seen corresponding path program 1 times [2025-03-14 01:35:37,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:37,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112532764] [2025-03-14 01:35:37,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:37,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:37,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-14 01:35:37,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-14 01:35:37,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:37,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:37,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:37,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112532764] [2025-03-14 01:35:37,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112532764] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:37,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:37,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:37,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11011213] [2025-03-14 01:35:37,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:37,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:37,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:37,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:37,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:38,036 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2025-03-14 01:35:38,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 147 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-03-14 01:35:38,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:38,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2025-03-14 01:35:38,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:38,209 INFO L124 PetriNetUnfolderBase]: 292/1078 cut-off events. [2025-03-14 01:35:38,209 INFO L125 PetriNetUnfolderBase]: For 577/599 co-relation queries the response was YES. [2025-03-14 01:35:38,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1078 events. 292/1078 cut-off events. For 577/599 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6908 event pairs, 101 based on Foata normal form. 9/1039 useless extension candidates. Maximal degree in co-relation 2418. Up to 532 conditions per place. [2025-03-14 01:35:38,215 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 72 selfloop transitions, 53 changer transitions 4/202 dead transitions. [2025-03-14 01:35:38,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 202 transitions, 1049 flow [2025-03-14 01:35:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:38,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2025-03-14 01:35:38,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2025-03-14 01:35:38,217 INFO L175 Difference]: Start difference. First operand has 129 places, 147 transitions, 547 flow. Second operand 6 states and 547 transitions. [2025-03-14 01:35:38,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 202 transitions, 1049 flow [2025-03-14 01:35:38,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 202 transitions, 1049 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:38,228 INFO L231 Difference]: Finished difference. Result has 139 places, 194 transitions, 1029 flow [2025-03-14 01:35:38,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1029, PETRI_PLACES=139, PETRI_TRANSITIONS=194} [2025-03-14 01:35:38,230 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 25 predicate places. [2025-03-14 01:35:38,230 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 194 transitions, 1029 flow [2025-03-14 01:35:38,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-03-14 01:35:38,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:38,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:38,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:35:38,231 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:38,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash 432842355, now seen corresponding path program 1 times [2025-03-14 01:35:38,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:38,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134697199] [2025-03-14 01:35:38,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:38,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-14 01:35:38,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-14 01:35:38,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:38,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:38,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:38,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134697199] [2025-03-14 01:35:38,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134697199] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:38,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:38,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257971328] [2025-03-14 01:35:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:38,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:38,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:38,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:38,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:38,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2025-03-14 01:35:38,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 194 transitions, 1029 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-03-14 01:35:38,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:38,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2025-03-14 01:35:38,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:38,790 INFO L124 PetriNetUnfolderBase]: 396/1383 cut-off events. [2025-03-14 01:35:38,790 INFO L125 PetriNetUnfolderBase]: For 1632/1673 co-relation queries the response was YES. [2025-03-14 01:35:38,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3760 conditions, 1383 events. 396/1383 cut-off events. For 1632/1673 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9362 event pairs, 107 based on Foata normal form. 4/1351 useless extension candidates. Maximal degree in co-relation 3728. Up to 677 conditions per place. [2025-03-14 01:35:38,798 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 109 selfloop transitions, 61 changer transitions 10/255 dead transitions. [2025-03-14 01:35:38,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 255 transitions, 1735 flow [2025-03-14 01:35:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2025-03-14 01:35:38,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2025-03-14 01:35:38,800 INFO L175 Difference]: Start difference. First operand has 139 places, 194 transitions, 1029 flow. Second operand 6 states and 547 transitions. [2025-03-14 01:35:38,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 255 transitions, 1735 flow [2025-03-14 01:35:38,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 255 transitions, 1671 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:38,815 INFO L231 Difference]: Finished difference. Result has 149 places, 241 transitions, 1551 flow [2025-03-14 01:35:38,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1551, PETRI_PLACES=149, PETRI_TRANSITIONS=241} [2025-03-14 01:35:38,816 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 35 predicate places. [2025-03-14 01:35:38,816 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 241 transitions, 1551 flow [2025-03-14 01:35:38,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-03-14 01:35:38,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:38,817 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:38,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:35:38,817 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:38,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1827911745, now seen corresponding path program 1 times [2025-03-14 01:35:38,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922634840] [2025-03-14 01:35:38,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:38,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:35:38,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:35:38,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:38,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:39,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:39,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922634840] [2025-03-14 01:35:39,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922634840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:39,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:39,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:39,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840827790] [2025-03-14 01:35:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:39,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:39,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:39,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:39,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:40,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:40,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 241 transitions, 1551 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:40,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:40,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:40,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:40,744 INFO L124 PetriNetUnfolderBase]: 618/2294 cut-off events. [2025-03-14 01:35:40,744 INFO L125 PetriNetUnfolderBase]: For 2982/3033 co-relation queries the response was YES. [2025-03-14 01:35:40,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6493 conditions, 2294 events. 618/2294 cut-off events. For 2982/3033 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18379 event pairs, 36 based on Foata normal form. 6/2286 useless extension candidates. Maximal degree in co-relation 6451. Up to 366 conditions per place. [2025-03-14 01:35:40,753 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 40 selfloop transitions, 18 changer transitions 18/288 dead transitions. [2025-03-14 01:35:40,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 288 transitions, 1797 flow [2025-03-14 01:35:40,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2025-03-14 01:35:40,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2025-03-14 01:35:40,756 INFO L175 Difference]: Start difference. First operand has 149 places, 241 transitions, 1551 flow. Second operand 13 states and 1143 transitions. [2025-03-14 01:35:40,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 288 transitions, 1797 flow [2025-03-14 01:35:40,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 288 transitions, 1729 flow, removed 34 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:40,779 INFO L231 Difference]: Finished difference. Result has 168 places, 250 transitions, 1582 flow [2025-03-14 01:35:40,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1582, PETRI_PLACES=168, PETRI_TRANSITIONS=250} [2025-03-14 01:35:40,780 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 54 predicate places. [2025-03-14 01:35:40,780 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 250 transitions, 1582 flow [2025-03-14 01:35:40,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:40,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:40,781 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] [2025-03-14 01:35:40,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:35:40,781 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:40,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:40,781 INFO L85 PathProgramCache]: Analyzing trace with hash 152129739, now seen corresponding path program 2 times [2025-03-14 01:35:40,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560455522] [2025-03-14 01:35:40,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:40,792 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:40,797 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:40,797 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:40,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:41,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:41,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560455522] [2025-03-14 01:35:41,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560455522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:41,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:41,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:41,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554661408] [2025-03-14 01:35:41,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:41,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:41,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:41,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:41,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:41,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:41,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 250 transitions, 1582 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:41,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:41,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:41,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:42,402 INFO L124 PetriNetUnfolderBase]: 620/2370 cut-off events. [2025-03-14 01:35:42,402 INFO L125 PetriNetUnfolderBase]: For 3345/3424 co-relation queries the response was YES. [2025-03-14 01:35:42,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7125 conditions, 2370 events. 620/2370 cut-off events. For 3345/3424 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 19169 event pairs, 37 based on Foata normal form. 13/2374 useless extension candidates. Maximal degree in co-relation 7072. Up to 366 conditions per place. [2025-03-14 01:35:42,415 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 34 selfloop transitions, 23 changer transitions 24/293 dead transitions. [2025-03-14 01:35:42,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 293 transitions, 1914 flow [2025-03-14 01:35:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-03-14 01:35:42,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-03-14 01:35:42,419 INFO L175 Difference]: Start difference. First operand has 168 places, 250 transitions, 1582 flow. Second operand 13 states and 1139 transitions. [2025-03-14 01:35:42,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 293 transitions, 1914 flow [2025-03-14 01:35:42,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 293 transitions, 1889 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:35:42,463 INFO L231 Difference]: Finished difference. Result has 177 places, 250 transitions, 1625 flow [2025-03-14 01:35:42,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1625, PETRI_PLACES=177, PETRI_TRANSITIONS=250} [2025-03-14 01:35:42,464 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 63 predicate places. [2025-03-14 01:35:42,464 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 250 transitions, 1625 flow [2025-03-14 01:35:42,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:42,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:42,466 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] [2025-03-14 01:35:42,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:35:42,466 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:42,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1160413243, now seen corresponding path program 3 times [2025-03-14 01:35:42,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:42,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823148309] [2025-03-14 01:35:42,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:35:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:42,477 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:42,485 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:42,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:35:42,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:42,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:42,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823148309] [2025-03-14 01:35:42,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823148309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:42,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:42,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:42,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246303657] [2025-03-14 01:35:42,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:42,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:42,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:42,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:42,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:43,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:43,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 250 transitions, 1625 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:43,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:43,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:43,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:43,919 INFO L124 PetriNetUnfolderBase]: 563/2153 cut-off events. [2025-03-14 01:35:43,919 INFO L125 PetriNetUnfolderBase]: For 3525/3616 co-relation queries the response was YES. [2025-03-14 01:35:43,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6757 conditions, 2153 events. 563/2153 cut-off events. For 3525/3616 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16992 event pairs, 21 based on Foata normal form. 12/2159 useless extension candidates. Maximal degree in co-relation 6700. Up to 368 conditions per place. [2025-03-14 01:35:43,932 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 42 selfloop transitions, 19 changer transitions 16/289 dead transitions. [2025-03-14 01:35:43,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 289 transitions, 2009 flow [2025-03-14 01:35:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1137 transitions. [2025-03-14 01:35:43,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7879417879417879 [2025-03-14 01:35:43,935 INFO L175 Difference]: Start difference. First operand has 177 places, 250 transitions, 1625 flow. Second operand 13 states and 1137 transitions. [2025-03-14 01:35:43,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 289 transitions, 2009 flow [2025-03-14 01:35:43,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 289 transitions, 1909 flow, removed 9 selfloop flow, removed 11 redundant places. [2025-03-14 01:35:43,954 INFO L231 Difference]: Finished difference. Result has 182 places, 255 transitions, 1673 flow [2025-03-14 01:35:43,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1579, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1673, PETRI_PLACES=182, PETRI_TRANSITIONS=255} [2025-03-14 01:35:43,955 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 68 predicate places. [2025-03-14 01:35:43,955 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 255 transitions, 1673 flow [2025-03-14 01:35:43,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:43,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:43,955 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] [2025-03-14 01:35:43,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:35:43,955 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:43,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 972184099, now seen corresponding path program 4 times [2025-03-14 01:35:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:43,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044434458] [2025-03-14 01:35:43,956 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:35:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:43,965 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:43,975 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:35:43,976 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:35:43,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:44,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:44,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044434458] [2025-03-14 01:35:44,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044434458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:44,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:44,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-14 01:35:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537068336] [2025-03-14 01:35:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:44,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 01:35:44,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:44,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 01:35:44,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-14 01:35:45,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-03-14 01:35:45,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 255 transitions, 1673 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:35:45,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:45,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-03-14 01:35:45,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:46,407 INFO L124 PetriNetUnfolderBase]: 1519/4718 cut-off events. [2025-03-14 01:35:46,408 INFO L125 PetriNetUnfolderBase]: For 13877/14158 co-relation queries the response was YES. [2025-03-14 01:35:46,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17368 conditions, 4718 events. 1519/4718 cut-off events. For 13877/14158 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 41565 event pairs, 108 based on Foata normal form. 104/4796 useless extension candidates. Maximal degree in co-relation 17310. Up to 1137 conditions per place. [2025-03-14 01:35:46,447 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 454 selfloop transitions, 120 changer transitions 45/711 dead transitions. [2025-03-14 01:35:46,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 711 transitions, 6720 flow [2025-03-14 01:35:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-14 01:35:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-03-14 01:35:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2023 transitions. [2025-03-14 01:35:46,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.729009009009009 [2025-03-14 01:35:46,452 INFO L175 Difference]: Start difference. First operand has 182 places, 255 transitions, 1673 flow. Second operand 25 states and 2023 transitions. [2025-03-14 01:35:46,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 711 transitions, 6720 flow [2025-03-14 01:35:46,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 711 transitions, 6577 flow, removed 61 selfloop flow, removed 9 redundant places. [2025-03-14 01:35:46,504 INFO L231 Difference]: Finished difference. Result has 215 places, 356 transitions, 3121 flow [2025-03-14 01:35:46,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3121, PETRI_PLACES=215, PETRI_TRANSITIONS=356} [2025-03-14 01:35:46,505 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 101 predicate places. [2025-03-14 01:35:46,505 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 356 transitions, 3121 flow [2025-03-14 01:35:46,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:35:46,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:46,506 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] [2025-03-14 01:35:46,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 01:35:46,506 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:46,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1421721671, now seen corresponding path program 5 times [2025-03-14 01:35:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706974586] [2025-03-14 01:35:46,507 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:35:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:46,517 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:46,525 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:35:46,525 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:35:46,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:46,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:46,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706974586] [2025-03-14 01:35:46,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706974586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:46,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:46,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821436137] [2025-03-14 01:35:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:46,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:46,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:46,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:46,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:47,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:47,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 356 transitions, 3121 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:47,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:47,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:47,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:48,117 INFO L124 PetriNetUnfolderBase]: 1371/4714 cut-off events. [2025-03-14 01:35:48,117 INFO L125 PetriNetUnfolderBase]: For 13594/13831 co-relation queries the response was YES. [2025-03-14 01:35:48,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16667 conditions, 4714 events. 1371/4714 cut-off events. For 13594/13831 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 45010 event pairs, 57 based on Foata normal form. 38/4736 useless extension candidates. Maximal degree in co-relation 16593. Up to 884 conditions per place. [2025-03-14 01:35:48,139 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 64 selfloop transitions, 29 changer transitions 6/385 dead transitions. [2025-03-14 01:35:48,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 385 transitions, 3516 flow [2025-03-14 01:35:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2025-03-14 01:35:48,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2025-03-14 01:35:48,142 INFO L175 Difference]: Start difference. First operand has 215 places, 356 transitions, 3121 flow. Second operand 13 states and 1132 transitions. [2025-03-14 01:35:48,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 385 transitions, 3516 flow [2025-03-14 01:35:48,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 385 transitions, 3443 flow, removed 25 selfloop flow, removed 4 redundant places. [2025-03-14 01:35:48,207 INFO L231 Difference]: Finished difference. Result has 226 places, 359 transitions, 3159 flow [2025-03-14 01:35:48,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3061, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3159, PETRI_PLACES=226, PETRI_TRANSITIONS=359} [2025-03-14 01:35:48,208 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 112 predicate places. [2025-03-14 01:35:48,208 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 359 transitions, 3159 flow [2025-03-14 01:35:48,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:48,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:48,208 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] [2025-03-14 01:35:48,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-14 01:35:48,208 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:48,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash -890396993, now seen corresponding path program 6 times [2025-03-14 01:35:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:48,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287181271] [2025-03-14 01:35:48,209 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:35:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:48,219 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:48,223 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:48,224 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:35:48,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:48,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287181271] [2025-03-14 01:35:48,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287181271] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:48,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:48,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:48,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075883724] [2025-03-14 01:35:48,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:48,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:48,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:48,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:49,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:49,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 359 transitions, 3159 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:49,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:49,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:49,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:49,900 INFO L124 PetriNetUnfolderBase]: 1642/5637 cut-off events. [2025-03-14 01:35:49,900 INFO L125 PetriNetUnfolderBase]: For 16664/16969 co-relation queries the response was YES. [2025-03-14 01:35:49,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20135 conditions, 5637 events. 1642/5637 cut-off events. For 16664/16969 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 55794 event pairs, 76 based on Foata normal form. 31/5648 useless extension candidates. Maximal degree in co-relation 20056. Up to 1026 conditions per place. [2025-03-14 01:35:49,941 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 69 selfloop transitions, 35 changer transitions 4/394 dead transitions. [2025-03-14 01:35:49,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 394 transitions, 3669 flow [2025-03-14 01:35:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2025-03-14 01:35:49,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2025-03-14 01:35:49,943 INFO L175 Difference]: Start difference. First operand has 226 places, 359 transitions, 3159 flow. Second operand 13 states and 1132 transitions. [2025-03-14 01:35:49,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 394 transitions, 3669 flow [2025-03-14 01:35:50,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 394 transitions, 3596 flow, removed 6 selfloop flow, removed 9 redundant places. [2025-03-14 01:35:50,036 INFO L231 Difference]: Finished difference. Result has 234 places, 367 transitions, 3311 flow [2025-03-14 01:35:50,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3107, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3311, PETRI_PLACES=234, PETRI_TRANSITIONS=367} [2025-03-14 01:35:50,038 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 120 predicate places. [2025-03-14 01:35:50,038 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 367 transitions, 3311 flow [2025-03-14 01:35:50,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:50,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:50,039 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] [2025-03-14 01:35:50,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 01:35:50,039 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:50,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash 184438349, now seen corresponding path program 7 times [2025-03-14 01:35:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:50,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632414992] [2025-03-14 01:35:50,040 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:35:50,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:50,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:35:50,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:35:50,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:50,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:50,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632414992] [2025-03-14 01:35:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632414992] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:50,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:50,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163102588] [2025-03-14 01:35:50,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:50,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:50,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:50,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:50,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:50,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:50,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 367 transitions, 3311 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:50,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:50,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:50,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:51,826 INFO L124 PetriNetUnfolderBase]: 1909/6546 cut-off events. [2025-03-14 01:35:51,826 INFO L125 PetriNetUnfolderBase]: For 20671/20983 co-relation queries the response was YES. [2025-03-14 01:35:51,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23664 conditions, 6546 events. 1909/6546 cut-off events. For 20671/20983 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 66983 event pairs, 85 based on Foata normal form. 44/6566 useless extension candidates. Maximal degree in co-relation 23580. Up to 1198 conditions per place. [2025-03-14 01:35:51,877 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 72 selfloop transitions, 36 changer transitions 4/398 dead transitions. [2025-03-14 01:35:51,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 398 transitions, 3833 flow [2025-03-14 01:35:51,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2025-03-14 01:35:51,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2025-03-14 01:35:51,881 INFO L175 Difference]: Start difference. First operand has 234 places, 367 transitions, 3311 flow. Second operand 13 states and 1131 transitions. [2025-03-14 01:35:51,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 398 transitions, 3833 flow [2025-03-14 01:35:51,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 398 transitions, 3751 flow, removed 21 selfloop flow, removed 8 redundant places. [2025-03-14 01:35:51,996 INFO L231 Difference]: Finished difference. Result has 241 places, 375 transitions, 3463 flow [2025-03-14 01:35:51,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3252, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3463, PETRI_PLACES=241, PETRI_TRANSITIONS=375} [2025-03-14 01:35:51,997 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 127 predicate places. [2025-03-14 01:35:51,997 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 375 transitions, 3463 flow [2025-03-14 01:35:51,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:51,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:51,997 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] [2025-03-14 01:35:51,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-14 01:35:51,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:51,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1305467887, now seen corresponding path program 8 times [2025-03-14 01:35:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008931675] [2025-03-14 01:35:51,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:52,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:52,011 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:52,011 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:52,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008931675] [2025-03-14 01:35:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008931675] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:52,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:52,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:52,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152133120] [2025-03-14 01:35:52,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:52,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:52,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:52,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:52,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:52,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:52,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 375 transitions, 3463 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:52,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:52,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:52,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:53,671 INFO L124 PetriNetUnfolderBase]: 1910/6547 cut-off events. [2025-03-14 01:35:53,672 INFO L125 PetriNetUnfolderBase]: For 22404/22770 co-relation queries the response was YES. [2025-03-14 01:35:53,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23936 conditions, 6547 events. 1910/6547 cut-off events. For 22404/22770 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66893 event pairs, 83 based on Foata normal form. 48/6571 useless extension candidates. Maximal degree in co-relation 23849. Up to 1190 conditions per place. [2025-03-14 01:35:53,719 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 73 selfloop transitions, 37 changer transitions 5/401 dead transitions. [2025-03-14 01:35:53,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 401 transitions, 3930 flow [2025-03-14 01:35:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-03-14 01:35:53,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-03-14 01:35:53,720 INFO L175 Difference]: Start difference. First operand has 241 places, 375 transitions, 3463 flow. Second operand 13 states and 1135 transitions. [2025-03-14 01:35:53,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 401 transitions, 3930 flow [2025-03-14 01:35:53,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 401 transitions, 3847 flow, removed 18 selfloop flow, removed 8 redundant places. [2025-03-14 01:35:53,837 INFO L231 Difference]: Finished difference. Result has 249 places, 378 transitions, 3545 flow [2025-03-14 01:35:53,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3390, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3545, PETRI_PLACES=249, PETRI_TRANSITIONS=378} [2025-03-14 01:35:53,838 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 135 predicate places. [2025-03-14 01:35:53,838 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 378 transitions, 3545 flow [2025-03-14 01:35:53,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:53,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:53,839 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] [2025-03-14 01:35:53,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-14 01:35:53,839 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:53,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash 811846809, now seen corresponding path program 9 times [2025-03-14 01:35:53,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:53,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499492330] [2025-03-14 01:35:53,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:35:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:53,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:53,851 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:53,851 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:35:53,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:54,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499492330] [2025-03-14 01:35:54,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499492330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:54,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:54,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:54,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862766518] [2025-03-14 01:35:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:54,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:54,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:54,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:54,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:54,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:54,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 378 transitions, 3545 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:54,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:54,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:54,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:55,475 INFO L124 PetriNetUnfolderBase]: 1911/6522 cut-off events. [2025-03-14 01:35:55,475 INFO L125 PetriNetUnfolderBase]: For 23503/23862 co-relation queries the response was YES. [2025-03-14 01:35:55,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24041 conditions, 6522 events. 1911/6522 cut-off events. For 23503/23862 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66614 event pairs, 88 based on Foata normal form. 40/6536 useless extension candidates. Maximal degree in co-relation 23950. Up to 1200 conditions per place. [2025-03-14 01:35:55,515 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 77 selfloop transitions, 31 changer transitions 3/397 dead transitions. [2025-03-14 01:35:55,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 397 transitions, 3963 flow [2025-03-14 01:35:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:55,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:55,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2025-03-14 01:35:55,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2025-03-14 01:35:55,516 INFO L175 Difference]: Start difference. First operand has 249 places, 378 transitions, 3545 flow. Second operand 13 states and 1138 transitions. [2025-03-14 01:35:55,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 397 transitions, 3963 flow [2025-03-14 01:35:55,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 397 transitions, 3796 flow, removed 43 selfloop flow, removed 13 redundant places. [2025-03-14 01:35:55,610 INFO L231 Difference]: Finished difference. Result has 251 places, 381 transitions, 3555 flow [2025-03-14 01:35:55,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3555, PETRI_PLACES=251, PETRI_TRANSITIONS=381} [2025-03-14 01:35:55,610 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 137 predicate places. [2025-03-14 01:35:55,610 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 381 transitions, 3555 flow [2025-03-14 01:35:55,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:55,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:55,612 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] [2025-03-14 01:35:55,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 01:35:55,612 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:55,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash 392937474, now seen corresponding path program 1 times [2025-03-14 01:35:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776427962] [2025-03-14 01:35:55,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:55,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:55,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:35:55,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:35:55,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:55,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:55,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:55,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776427962] [2025-03-14 01:35:55,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776427962] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:55,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:55,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:55,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821685287] [2025-03-14 01:35:55,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:55,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:55,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:55,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:55,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:56,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:56,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 381 transitions, 3555 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:56,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:56,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:56,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:57,293 INFO L124 PetriNetUnfolderBase]: 2174/7389 cut-off events. [2025-03-14 01:35:57,294 INFO L125 PetriNetUnfolderBase]: For 27440/27828 co-relation queries the response was YES. [2025-03-14 01:35:57,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27120 conditions, 7389 events. 2174/7389 cut-off events. For 27440/27828 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 77321 event pairs, 97 based on Foata normal form. 42/7401 useless extension candidates. Maximal degree in co-relation 27031. Up to 1368 conditions per place. [2025-03-14 01:35:57,331 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 83 selfloop transitions, 34 changer transitions 3/406 dead transitions. [2025-03-14 01:35:57,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 406 transitions, 4070 flow [2025-03-14 01:35:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-03-14 01:35:57,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-03-14 01:35:57,333 INFO L175 Difference]: Start difference. First operand has 251 places, 381 transitions, 3555 flow. Second operand 13 states and 1139 transitions. [2025-03-14 01:35:57,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 406 transitions, 4070 flow [2025-03-14 01:35:57,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 406 transitions, 3962 flow, removed 32 selfloop flow, removed 8 redundant places. [2025-03-14 01:35:57,452 INFO L231 Difference]: Finished difference. Result has 258 places, 387 transitions, 3670 flow [2025-03-14 01:35:57,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3488, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3670, PETRI_PLACES=258, PETRI_TRANSITIONS=387} [2025-03-14 01:35:57,453 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 144 predicate places. [2025-03-14 01:35:57,453 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 387 transitions, 3670 flow [2025-03-14 01:35:57,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:57,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:57,453 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] [2025-03-14 01:35:57,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-14 01:35:57,453 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:57,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash 736966750, now seen corresponding path program 2 times [2025-03-14 01:35:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735557461] [2025-03-14 01:35:57,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:57,462 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:57,465 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:57,466 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:57,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:57,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:57,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735557461] [2025-03-14 01:35:57,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735557461] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:57,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:57,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:57,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302410220] [2025-03-14 01:35:57,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:57,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:57,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:57,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:57,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:58,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:58,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 387 transitions, 3670 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:58,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:58,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:58,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:58,956 INFO L124 PetriNetUnfolderBase]: 2174/7407 cut-off events. [2025-03-14 01:35:58,956 INFO L125 PetriNetUnfolderBase]: For 27784/28172 co-relation queries the response was YES. [2025-03-14 01:35:58,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27244 conditions, 7407 events. 2174/7407 cut-off events. For 27784/28172 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 77502 event pairs, 100 based on Foata normal form. 39/7416 useless extension candidates. Maximal degree in co-relation 27152. Up to 1371 conditions per place. [2025-03-14 01:35:59,013 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 81 selfloop transitions, 31 changer transitions 5/403 dead transitions. [2025-03-14 01:35:59,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 403 transitions, 4038 flow [2025-03-14 01:35:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-03-14 01:35:59,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-03-14 01:35:59,014 INFO L175 Difference]: Start difference. First operand has 258 places, 387 transitions, 3670 flow. Second operand 13 states and 1139 transitions. [2025-03-14 01:35:59,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 403 transitions, 4038 flow [2025-03-14 01:35:59,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 403 transitions, 3976 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-03-14 01:35:59,140 INFO L231 Difference]: Finished difference. Result has 263 places, 387 transitions, 3691 flow [2025-03-14 01:35:59,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3614, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3691, PETRI_PLACES=263, PETRI_TRANSITIONS=387} [2025-03-14 01:35:59,140 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 149 predicate places. [2025-03-14 01:35:59,140 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 387 transitions, 3691 flow [2025-03-14 01:35:59,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:59,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:59,141 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] [2025-03-14 01:35:59,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-14 01:35:59,141 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:35:59,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1737097820, now seen corresponding path program 3 times [2025-03-14 01:35:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:59,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106625092] [2025-03-14 01:35:59,142 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:35:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:59,148 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:35:59,150 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:35:59,151 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:35:59,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:35:59,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:59,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106625092] [2025-03-14 01:35:59,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106625092] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:59,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:59,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:35:59,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305465683] [2025-03-14 01:35:59,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:59,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:59,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:59,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:59,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:59,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:35:59,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 387 transitions, 3691 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:35:59,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:59,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:35:59,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:00,855 INFO L124 PetriNetUnfolderBase]: 1907/6567 cut-off events. [2025-03-14 01:36:00,856 INFO L125 PetriNetUnfolderBase]: For 24507/24856 co-relation queries the response was YES. [2025-03-14 01:36:00,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24111 conditions, 6567 events. 1907/6567 cut-off events. For 24507/24856 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 67371 event pairs, 87 based on Foata normal form. 35/6576 useless extension candidates. Maximal degree in co-relation 24017. Up to 1208 conditions per place. [2025-03-14 01:36:00,908 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 78 selfloop transitions, 28 changer transitions 9/401 dead transitions. [2025-03-14 01:36:00,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 401 transitions, 4001 flow [2025-03-14 01:36:00,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-03-14 01:36:00,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-03-14 01:36:00,910 INFO L175 Difference]: Start difference. First operand has 263 places, 387 transitions, 3691 flow. Second operand 13 states and 1135 transitions. [2025-03-14 01:36:00,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 401 transitions, 4001 flow [2025-03-14 01:36:01,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 401 transitions, 3918 flow, removed 8 selfloop flow, removed 12 redundant places. [2025-03-14 01:36:01,031 INFO L231 Difference]: Finished difference. Result has 264 places, 381 transitions, 3574 flow [2025-03-14 01:36:01,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3574, PETRI_PLACES=264, PETRI_TRANSITIONS=381} [2025-03-14 01:36:01,031 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 150 predicate places. [2025-03-14 01:36:01,031 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 381 transitions, 3574 flow [2025-03-14 01:36:01,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:01,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:01,032 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] [2025-03-14 01:36:01,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-14 01:36:01,032 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:01,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -292962586, now seen corresponding path program 4 times [2025-03-14 01:36:01,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:01,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647956795] [2025-03-14 01:36:01,032 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:01,043 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:01,051 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:01,051 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:01,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:01,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:01,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647956795] [2025-03-14 01:36:01,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647956795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:01,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:01,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295843031] [2025-03-14 01:36:01,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:01,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:01,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:01,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:01,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:01,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:01,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 381 transitions, 3574 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:01,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:01,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:01,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:02,538 INFO L124 PetriNetUnfolderBase]: 1906/6530 cut-off events. [2025-03-14 01:36:02,538 INFO L125 PetriNetUnfolderBase]: For 24005/24348 co-relation queries the response was YES. [2025-03-14 01:36:02,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23886 conditions, 6530 events. 1906/6530 cut-off events. For 24005/24348 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66774 event pairs, 88 based on Foata normal form. 37/6541 useless extension candidates. Maximal degree in co-relation 23791. Up to 1196 conditions per place. [2025-03-14 01:36:02,582 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 74 selfloop transitions, 31 changer transitions 5/396 dead transitions. [2025-03-14 01:36:02,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 396 transitions, 3935 flow [2025-03-14 01:36:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2025-03-14 01:36:02,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2025-03-14 01:36:02,583 INFO L175 Difference]: Start difference. First operand has 264 places, 381 transitions, 3574 flow. Second operand 13 states and 1138 transitions. [2025-03-14 01:36:02,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 396 transitions, 3935 flow [2025-03-14 01:36:02,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 396 transitions, 3841 flow, removed 14 selfloop flow, removed 15 redundant places. [2025-03-14 01:36:02,682 INFO L231 Difference]: Finished difference. Result has 258 places, 381 transitions, 3570 flow [2025-03-14 01:36:02,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3501, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3570, PETRI_PLACES=258, PETRI_TRANSITIONS=381} [2025-03-14 01:36:02,682 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 144 predicate places. [2025-03-14 01:36:02,682 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 381 transitions, 3570 flow [2025-03-14 01:36:02,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:02,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:02,683 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] [2025-03-14 01:36:02,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-14 01:36:02,683 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:02,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -305339652, now seen corresponding path program 5 times [2025-03-14 01:36:02,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:02,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347238360] [2025-03-14 01:36:02,684 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:02,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:02,689 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:02,692 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:02,692 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:02,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:02,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:02,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347238360] [2025-03-14 01:36:02,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347238360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:02,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:02,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:02,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522774527] [2025-03-14 01:36:02,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:02,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:02,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:02,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:02,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:03,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:03,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 381 transitions, 3570 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:03,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:03,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:03,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:04,029 INFO L124 PetriNetUnfolderBase]: 1637/5690 cut-off events. [2025-03-14 01:36:04,029 INFO L125 PetriNetUnfolderBase]: For 20288/20591 co-relation queries the response was YES. [2025-03-14 01:36:04,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20744 conditions, 5690 events. 1637/5690 cut-off events. For 20288/20591 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 56564 event pairs, 77 based on Foata normal form. 30/5698 useless extension candidates. Maximal degree in co-relation 20652. Up to 1035 conditions per place. [2025-03-14 01:36:04,067 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 70 selfloop transitions, 23 changer transitions 10/389 dead transitions. [2025-03-14 01:36:04,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 389 transitions, 3794 flow [2025-03-14 01:36:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1134 transitions. [2025-03-14 01:36:04,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2025-03-14 01:36:04,068 INFO L175 Difference]: Start difference. First operand has 258 places, 381 transitions, 3570 flow. Second operand 13 states and 1134 transitions. [2025-03-14 01:36:04,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 389 transitions, 3794 flow [2025-03-14 01:36:04,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 389 transitions, 3691 flow, removed 10 selfloop flow, removed 14 redundant places. [2025-03-14 01:36:04,170 INFO L231 Difference]: Finished difference. Result has 255 places, 371 transitions, 3372 flow [2025-03-14 01:36:04,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3401, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3372, PETRI_PLACES=255, PETRI_TRANSITIONS=371} [2025-03-14 01:36:04,170 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 141 predicate places. [2025-03-14 01:36:04,171 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 371 transitions, 3372 flow [2025-03-14 01:36:04,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:04,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:04,171 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] [2025-03-14 01:36:04,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-14 01:36:04,171 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:04,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash -254220260, now seen corresponding path program 6 times [2025-03-14 01:36:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:04,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063356101] [2025-03-14 01:36:04,172 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:04,178 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:04,180 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:04,181 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:04,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:04,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063356101] [2025-03-14 01:36:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063356101] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:04,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:04,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114056857] [2025-03-14 01:36:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:04,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:04,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:04,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:04,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:04,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:04,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 371 transitions, 3372 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:04,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:04,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:04,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:05,507 INFO L124 PetriNetUnfolderBase]: 1367/4801 cut-off events. [2025-03-14 01:36:05,508 INFO L125 PetriNetUnfolderBase]: For 15445/15671 co-relation queries the response was YES. [2025-03-14 01:36:05,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17278 conditions, 4801 events. 1367/4801 cut-off events. For 15445/15671 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 46022 event pairs, 58 based on Foata normal form. 35/4818 useless extension candidates. Maximal degree in co-relation 17213. Up to 874 conditions per place. [2025-03-14 01:36:05,541 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 66 selfloop transitions, 26 changer transitions 8/386 dead transitions. [2025-03-14 01:36:05,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 386 transitions, 3618 flow [2025-03-14 01:36:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2025-03-14 01:36:05,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2025-03-14 01:36:05,543 INFO L175 Difference]: Start difference. First operand has 255 places, 371 transitions, 3372 flow. Second operand 13 states and 1127 transitions. [2025-03-14 01:36:05,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 386 transitions, 3618 flow [2025-03-14 01:36:05,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 386 transitions, 3523 flow, removed 10 selfloop flow, removed 15 redundant places. [2025-03-14 01:36:05,620 INFO L231 Difference]: Finished difference. Result has 245 places, 365 transitions, 3246 flow [2025-03-14 01:36:05,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3213, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3246, PETRI_PLACES=245, PETRI_TRANSITIONS=365} [2025-03-14 01:36:05,621 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 131 predicate places. [2025-03-14 01:36:05,621 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 365 transitions, 3246 flow [2025-03-14 01:36:05,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:05,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:05,621 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] [2025-03-14 01:36:05,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-14 01:36:05,621 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:05,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:05,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1405176266, now seen corresponding path program 7 times [2025-03-14 01:36:05,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:05,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441429313] [2025-03-14 01:36:05,622 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:05,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:05,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:05,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:05,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:05,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:05,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:05,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441429313] [2025-03-14 01:36:05,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441429313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:05,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:05,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054178234] [2025-03-14 01:36:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:05,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:05,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:05,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:05,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:06,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:06,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 365 transitions, 3246 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:06,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:06,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:06,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:06,872 INFO L124 PetriNetUnfolderBase]: 1367/4818 cut-off events. [2025-03-14 01:36:06,872 INFO L125 PetriNetUnfolderBase]: For 14506/14745 co-relation queries the response was YES. [2025-03-14 01:36:06,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17132 conditions, 4818 events. 1367/4818 cut-off events. For 14506/14745 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 46155 event pairs, 60 based on Foata normal form. 35/4835 useless extension candidates. Maximal degree in co-relation 17069. Up to 861 conditions per place. [2025-03-14 01:36:06,902 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 63 selfloop transitions, 28 changer transitions 4/381 dead transitions. [2025-03-14 01:36:06,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 381 transitions, 3548 flow [2025-03-14 01:36:06,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2025-03-14 01:36:06,904 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2025-03-14 01:36:06,904 INFO L175 Difference]: Start difference. First operand has 245 places, 365 transitions, 3246 flow. Second operand 13 states and 1131 transitions. [2025-03-14 01:36:06,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 381 transitions, 3548 flow [2025-03-14 01:36:06,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 381 transitions, 3434 flow, removed 17 selfloop flow, removed 16 redundant places. [2025-03-14 01:36:06,984 INFO L231 Difference]: Finished difference. Result has 239 places, 365 transitions, 3223 flow [2025-03-14 01:36:06,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3153, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3223, PETRI_PLACES=239, PETRI_TRANSITIONS=365} [2025-03-14 01:36:06,985 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 125 predicate places. [2025-03-14 01:36:06,985 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 365 transitions, 3223 flow [2025-03-14 01:36:06,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:06,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:06,985 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] [2025-03-14 01:36:06,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-14 01:36:06,986 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:06,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:06,986 INFO L85 PathProgramCache]: Analyzing trace with hash -764877314, now seen corresponding path program 8 times [2025-03-14 01:36:06,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:06,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319936115] [2025-03-14 01:36:06,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:06,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:06,994 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:06,997 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:06,997 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:06,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:07,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319936115] [2025-03-14 01:36:07,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319936115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:07,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:07,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:07,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112967752] [2025-03-14 01:36:07,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:07,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:07,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:07,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:07,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:07,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:07,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 365 transitions, 3223 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:07,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:07,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:07,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:08,363 INFO L124 PetriNetUnfolderBase]: 1365/4791 cut-off events. [2025-03-14 01:36:08,363 INFO L125 PetriNetUnfolderBase]: For 14140/14363 co-relation queries the response was YES. [2025-03-14 01:36:08,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16979 conditions, 4791 events. 1365/4791 cut-off events. For 14140/14363 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 45920 event pairs, 61 based on Foata normal form. 34/4807 useless extension candidates. Maximal degree in co-relation 16919. Up to 864 conditions per place. [2025-03-14 01:36:08,394 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 60 selfloop transitions, 30 changer transitions 5/381 dead transitions. [2025-03-14 01:36:08,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 381 transitions, 3522 flow [2025-03-14 01:36:08,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1130 transitions. [2025-03-14 01:36:08,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7830907830907831 [2025-03-14 01:36:08,395 INFO L175 Difference]: Start difference. First operand has 239 places, 365 transitions, 3223 flow. Second operand 13 states and 1130 transitions. [2025-03-14 01:36:08,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 381 transitions, 3522 flow [2025-03-14 01:36:08,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 381 transitions, 3452 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-03-14 01:36:08,459 INFO L231 Difference]: Finished difference. Result has 242 places, 366 transitions, 3255 flow [2025-03-14 01:36:08,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3255, PETRI_PLACES=242, PETRI_TRANSITIONS=366} [2025-03-14 01:36:08,460 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 128 predicate places. [2025-03-14 01:36:08,460 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 366 transitions, 3255 flow [2025-03-14 01:36:08,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:08,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:08,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:08,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-14 01:36:08,460 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:08,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1927979198, now seen corresponding path program 9 times [2025-03-14 01:36:08,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:08,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861948500] [2025-03-14 01:36:08,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:08,467 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:08,470 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:08,470 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:08,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861948500] [2025-03-14 01:36:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861948500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:08,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754682041] [2025-03-14 01:36:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:08,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:08,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:08,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:08,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:09,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:09,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 366 transitions, 3255 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:09,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:09,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:09,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:09,644 INFO L124 PetriNetUnfolderBase]: 1096/3975 cut-off events. [2025-03-14 01:36:09,644 INFO L125 PetriNetUnfolderBase]: For 11457/11638 co-relation queries the response was YES. [2025-03-14 01:36:09,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13981 conditions, 3975 events. 1096/3975 cut-off events. For 11457/11638 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 36502 event pairs, 50 based on Foata normal form. 28/3989 useless extension candidates. Maximal degree in co-relation 13918. Up to 700 conditions per place. [2025-03-14 01:36:09,672 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 55 selfloop transitions, 21 changer transitions 12/374 dead transitions. [2025-03-14 01:36:09,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 374 transitions, 3435 flow [2025-03-14 01:36:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:09,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1126 transitions. [2025-03-14 01:36:09,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803187803187803 [2025-03-14 01:36:09,673 INFO L175 Difference]: Start difference. First operand has 242 places, 366 transitions, 3255 flow. Second operand 13 states and 1126 transitions. [2025-03-14 01:36:09,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 374 transitions, 3435 flow [2025-03-14 01:36:09,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 374 transitions, 3374 flow, removed 6 selfloop flow, removed 10 redundant places. [2025-03-14 01:36:09,730 INFO L231 Difference]: Finished difference. Result has 243 places, 355 transitions, 3100 flow [2025-03-14 01:36:09,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3128, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3100, PETRI_PLACES=243, PETRI_TRANSITIONS=355} [2025-03-14 01:36:09,731 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 129 predicate places. [2025-03-14 01:36:09,731 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 355 transitions, 3100 flow [2025-03-14 01:36:09,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:09,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:09,731 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] [2025-03-14 01:36:09,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-14 01:36:09,732 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:09,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:09,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1240706426, now seen corresponding path program 10 times [2025-03-14 01:36:09,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:09,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654435093] [2025-03-14 01:36:09,732 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:09,741 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:09,745 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:09,745 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:09,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:09,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:09,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654435093] [2025-03-14 01:36:09,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654435093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:09,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:09,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-14 01:36:09,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635319525] [2025-03-14 01:36:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:09,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 01:36:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:10,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 01:36:10,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-03-14 01:36:10,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-03-14 01:36:10,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 355 transitions, 3100 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:10,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:10,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-03-14 01:36:10,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:11,527 INFO L124 PetriNetUnfolderBase]: 1914/5762 cut-off events. [2025-03-14 01:36:11,528 INFO L125 PetriNetUnfolderBase]: For 23910/24378 co-relation queries the response was YES. [2025-03-14 01:36:11,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23117 conditions, 5762 events. 1914/5762 cut-off events. For 23910/24378 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 53266 event pairs, 145 based on Foata normal form. 111/5839 useless extension candidates. Maximal degree in co-relation 23055. Up to 1232 conditions per place. [2025-03-14 01:36:11,567 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 493 selfloop transitions, 138 changer transitions 39/795 dead transitions. [2025-03-14 01:36:11,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 795 transitions, 8309 flow [2025-03-14 01:36:11,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-14 01:36:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-14 01:36:11,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1576 transitions. [2025-03-14 01:36:11,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7472735893788526 [2025-03-14 01:36:11,568 INFO L175 Difference]: Start difference. First operand has 243 places, 355 transitions, 3100 flow. Second operand 19 states and 1576 transitions. [2025-03-14 01:36:11,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 795 transitions, 8309 flow [2025-03-14 01:36:11,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 795 transitions, 8104 flow, removed 32 selfloop flow, removed 19 redundant places. [2025-03-14 01:36:11,655 INFO L231 Difference]: Finished difference. Result has 245 places, 451 transitions, 4543 flow [2025-03-14 01:36:11,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3008, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4543, PETRI_PLACES=245, PETRI_TRANSITIONS=451} [2025-03-14 01:36:11,656 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 131 predicate places. [2025-03-14 01:36:11,656 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 451 transitions, 4543 flow [2025-03-14 01:36:11,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:11,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:11,656 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] [2025-03-14 01:36:11,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-14 01:36:11,656 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:11,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash -143492506, now seen corresponding path program 11 times [2025-03-14 01:36:11,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:11,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032782508] [2025-03-14 01:36:11,657 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:11,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:11,664 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:11,666 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:11,666 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:11,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:11,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032782508] [2025-03-14 01:36:11,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032782508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:11,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:11,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:11,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132871712] [2025-03-14 01:36:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:11,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:11,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:11,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:11,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:12,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:12,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 451 transitions, 4543 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:12,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:12,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:12,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:12,809 INFO L124 PetriNetUnfolderBase]: 1419/4877 cut-off events. [2025-03-14 01:36:12,809 INFO L125 PetriNetUnfolderBase]: For 18570/18880 co-relation queries the response was YES. [2025-03-14 01:36:12,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18370 conditions, 4877 events. 1419/4877 cut-off events. For 18570/18880 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 46879 event pairs, 57 based on Foata normal form. 48/4909 useless extension candidates. Maximal degree in co-relation 18304. Up to 879 conditions per place. [2025-03-14 01:36:12,839 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 40 selfloop transitions, 63 changer transitions 4/467 dead transitions. [2025-03-14 01:36:12,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 467 transitions, 4846 flow [2025-03-14 01:36:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:12,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-03-14 01:36:12,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-03-14 01:36:12,840 INFO L175 Difference]: Start difference. First operand has 245 places, 451 transitions, 4543 flow. Second operand 13 states and 1122 transitions. [2025-03-14 01:36:12,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 467 transitions, 4846 flow [2025-03-14 01:36:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 467 transitions, 4782 flow, removed 20 selfloop flow, removed 3 redundant places. [2025-03-14 01:36:12,924 INFO L231 Difference]: Finished difference. Result has 256 places, 449 transitions, 4612 flow [2025-03-14 01:36:12,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4479, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4612, PETRI_PLACES=256, PETRI_TRANSITIONS=449} [2025-03-14 01:36:12,924 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 142 predicate places. [2025-03-14 01:36:12,925 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 449 transitions, 4612 flow [2025-03-14 01:36:12,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:12,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:12,925 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] [2025-03-14 01:36:12,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-14 01:36:12,925 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2145563958, now seen corresponding path program 12 times [2025-03-14 01:36:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950294155] [2025-03-14 01:36:12,926 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:12,932 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:12,934 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:12,934 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:12,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:13,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:13,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950294155] [2025-03-14 01:36:13,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950294155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:13,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:13,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049574725] [2025-03-14 01:36:13,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:13,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:13,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:13,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:13,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:13,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:13,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 449 transitions, 4612 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:13,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:13,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:13,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:14,279 INFO L124 PetriNetUnfolderBase]: 1688/5727 cut-off events. [2025-03-14 01:36:14,279 INFO L125 PetriNetUnfolderBase]: For 22620/22935 co-relation queries the response was YES. [2025-03-14 01:36:14,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21792 conditions, 5727 events. 1688/5727 cut-off events. For 22620/22935 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 57013 event pairs, 67 based on Foata normal form. 30/5738 useless extension candidates. Maximal degree in co-relation 21725. Up to 1041 conditions per place. [2025-03-14 01:36:14,305 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 75 selfloop transitions, 35 changer transitions 1/471 dead transitions. [2025-03-14 01:36:14,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 471 transitions, 5011 flow [2025-03-14 01:36:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-03-14 01:36:14,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-03-14 01:36:14,306 INFO L175 Difference]: Start difference. First operand has 256 places, 449 transitions, 4612 flow. Second operand 13 states and 1135 transitions. [2025-03-14 01:36:14,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 471 transitions, 5011 flow [2025-03-14 01:36:14,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 471 transitions, 4898 flow, removed 3 selfloop flow, removed 12 redundant places. [2025-03-14 01:36:14,397 INFO L231 Difference]: Finished difference. Result has 259 places, 455 transitions, 4674 flow [2025-03-14 01:36:14,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4513, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4674, PETRI_PLACES=259, PETRI_TRANSITIONS=455} [2025-03-14 01:36:14,397 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 145 predicate places. [2025-03-14 01:36:14,397 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 455 transitions, 4674 flow [2025-03-14 01:36:14,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:14,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:14,398 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] [2025-03-14 01:36:14,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-14 01:36:14,398 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:14,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:14,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1870818112, now seen corresponding path program 13 times [2025-03-14 01:36:14,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:14,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159322967] [2025-03-14 01:36:14,399 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:14,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:14,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:14,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:14,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:14,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:14,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:14,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159322967] [2025-03-14 01:36:14,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159322967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:14,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:14,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315818544] [2025-03-14 01:36:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:14,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:14,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:14,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:14,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:15,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:15,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 455 transitions, 4674 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:15,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:15,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:15,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:15,662 INFO L124 PetriNetUnfolderBase]: 1417/4881 cut-off events. [2025-03-14 01:36:15,662 INFO L125 PetriNetUnfolderBase]: For 19299/19560 co-relation queries the response was YES. [2025-03-14 01:36:15,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18619 conditions, 4881 events. 1417/4881 cut-off events. For 19299/19560 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 46855 event pairs, 59 based on Foata normal form. 29/4893 useless extension candidates. Maximal degree in co-relation 18549. Up to 879 conditions per place. [2025-03-14 01:36:15,700 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 60 selfloop transitions, 43 changer transitions 3/464 dead transitions. [2025-03-14 01:36:15,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 464 transitions, 4864 flow [2025-03-14 01:36:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1125 transitions. [2025-03-14 01:36:15,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7796257796257796 [2025-03-14 01:36:15,701 INFO L175 Difference]: Start difference. First operand has 259 places, 455 transitions, 4674 flow. Second operand 13 states and 1125 transitions. [2025-03-14 01:36:15,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 464 transitions, 4864 flow [2025-03-14 01:36:15,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 464 transitions, 4780 flow, removed 6 selfloop flow, removed 10 redundant places. [2025-03-14 01:36:15,804 INFO L231 Difference]: Finished difference. Result has 263 places, 447 transitions, 4583 flow [2025-03-14 01:36:15,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4480, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4583, PETRI_PLACES=263, PETRI_TRANSITIONS=447} [2025-03-14 01:36:15,804 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 149 predicate places. [2025-03-14 01:36:15,805 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 447 transitions, 4583 flow [2025-03-14 01:36:15,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:15,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:15,805 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] [2025-03-14 01:36:15,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-14 01:36:15,805 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:15,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash -159240870, now seen corresponding path program 14 times [2025-03-14 01:36:15,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:15,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682334373] [2025-03-14 01:36:15,806 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:15,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:15,812 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:15,814 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:15,814 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:15,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:15,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682334373] [2025-03-14 01:36:15,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682334373] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:15,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:15,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:15,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914298249] [2025-03-14 01:36:15,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:15,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:15,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:15,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:15,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:16,439 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:16,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 447 transitions, 4583 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:16,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:16,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:16,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:16,960 INFO L124 PetriNetUnfolderBase]: 1105/3916 cut-off events. [2025-03-14 01:36:16,960 INFO L125 PetriNetUnfolderBase]: For 15294/15512 co-relation queries the response was YES. [2025-03-14 01:36:16,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14721 conditions, 3916 events. 1105/3916 cut-off events. For 15294/15512 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 35768 event pairs, 50 based on Foata normal form. 25/3926 useless extension candidates. Maximal degree in co-relation 14650. Up to 693 conditions per place. [2025-03-14 01:36:16,985 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 47 selfloop transitions, 40 changer transitions 6/387 dead transitions. [2025-03-14 01:36:16,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 387 transitions, 3804 flow [2025-03-14 01:36:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-03-14 01:36:16,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-03-14 01:36:16,986 INFO L175 Difference]: Start difference. First operand has 263 places, 447 transitions, 4583 flow. Second operand 13 states and 1122 transitions. [2025-03-14 01:36:16,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 387 transitions, 3804 flow [2025-03-14 01:36:17,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 387 transitions, 3635 flow, removed 41 selfloop flow, removed 20 redundant places. [2025-03-14 01:36:17,049 INFO L231 Difference]: Finished difference. Result has 248 places, 367 transitions, 3405 flow [2025-03-14 01:36:17,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3390, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3405, PETRI_PLACES=248, PETRI_TRANSITIONS=367} [2025-03-14 01:36:17,049 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 134 predicate places. [2025-03-14 01:36:17,049 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 367 transitions, 3405 flow [2025-03-14 01:36:17,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:17,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:17,050 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] [2025-03-14 01:36:17,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-14 01:36:17,050 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:17,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1254933028, now seen corresponding path program 15 times [2025-03-14 01:36:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:17,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913922244] [2025-03-14 01:36:17,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:17,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:17,057 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:17,060 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:17,060 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:17,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913922244] [2025-03-14 01:36:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913922244] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:17,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:17,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:17,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905457741] [2025-03-14 01:36:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:17,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:17,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:17,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:17,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:17,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:17,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 367 transitions, 3405 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:17,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:17,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:17,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:18,086 INFO L124 PetriNetUnfolderBase]: 831/3035 cut-off events. [2025-03-14 01:36:18,087 INFO L125 PetriNetUnfolderBase]: For 10420/10576 co-relation queries the response was YES. [2025-03-14 01:36:18,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10890 conditions, 3035 events. 831/3035 cut-off events. For 10420/10576 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26191 event pairs, 39 based on Foata normal form. 14/3038 useless extension candidates. Maximal degree in co-relation 10829. Up to 524 conditions per place. [2025-03-14 01:36:18,101 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 45 selfloop transitions, 21 changer transitions 15/307 dead transitions. [2025-03-14 01:36:18,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 307 transitions, 2580 flow [2025-03-14 01:36:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-03-14 01:36:18,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-03-14 01:36:18,102 INFO L175 Difference]: Start difference. First operand has 248 places, 367 transitions, 3405 flow. Second operand 13 states and 1115 transitions. [2025-03-14 01:36:18,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 307 transitions, 2580 flow [2025-03-14 01:36:18,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 307 transitions, 2408 flow, removed 49 selfloop flow, removed 26 redundant places. [2025-03-14 01:36:18,135 INFO L231 Difference]: Finished difference. Result has 220 places, 279 transitions, 2104 flow [2025-03-14 01:36:18,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2195, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2104, PETRI_PLACES=220, PETRI_TRANSITIONS=279} [2025-03-14 01:36:18,136 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 106 predicate places. [2025-03-14 01:36:18,136 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 279 transitions, 2104 flow [2025-03-14 01:36:18,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:18,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:18,136 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] [2025-03-14 01:36:18,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-14 01:36:18,137 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:18,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1399763320, now seen corresponding path program 16 times [2025-03-14 01:36:18,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:18,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190774339] [2025-03-14 01:36:18,137 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:18,143 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:18,147 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:18,147 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:18,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:18,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:18,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190774339] [2025-03-14 01:36:18,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190774339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:18,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:18,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:18,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430108061] [2025-03-14 01:36:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:18,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:18,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:18,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:18,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:18,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 279 transitions, 2104 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:18,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:18,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:18,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:19,055 INFO L124 PetriNetUnfolderBase]: 825/2997 cut-off events. [2025-03-14 01:36:19,055 INFO L125 PetriNetUnfolderBase]: For 8700/8864 co-relation queries the response was YES. [2025-03-14 01:36:19,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10274 conditions, 2997 events. 825/2997 cut-off events. For 8700/8864 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 25851 event pairs, 40 based on Foata normal form. 17/3003 useless extension candidates. Maximal degree in co-relation 10227. Up to 527 conditions per place. [2025-03-14 01:36:19,072 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 39 selfloop transitions, 25 changer transitions 5/295 dead transitions. [2025-03-14 01:36:19,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 295 transitions, 2338 flow [2025-03-14 01:36:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-03-14 01:36:19,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-03-14 01:36:19,073 INFO L175 Difference]: Start difference. First operand has 220 places, 279 transitions, 2104 flow. Second operand 13 states and 1123 transitions. [2025-03-14 01:36:19,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 295 transitions, 2338 flow [2025-03-14 01:36:19,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 295 transitions, 2250 flow, removed 4 selfloop flow, removed 14 redundant places. [2025-03-14 01:36:19,104 INFO L231 Difference]: Finished difference. Result has 207 places, 279 transitions, 2091 flow [2025-03-14 01:36:19,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2024, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2091, PETRI_PLACES=207, PETRI_TRANSITIONS=279} [2025-03-14 01:36:19,104 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-03-14 01:36:19,104 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 279 transitions, 2091 flow [2025-03-14 01:36:19,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:19,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:19,105 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] [2025-03-14 01:36:19,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-14 01:36:19,105 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:19,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash 162071462, now seen corresponding path program 17 times [2025-03-14 01:36:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:19,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685491249] [2025-03-14 01:36:19,106 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:19,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:19,114 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:19,119 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:19,120 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:19,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:19,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:19,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685491249] [2025-03-14 01:36:19,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685491249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:19,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:19,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222687768] [2025-03-14 01:36:19,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:19,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:19,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:19,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:19,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:19,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:19,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 279 transitions, 2091 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:19,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:19,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:19,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:20,070 INFO L124 PetriNetUnfolderBase]: 555/2151 cut-off events. [2025-03-14 01:36:20,070 INFO L125 PetriNetUnfolderBase]: For 5617/5734 co-relation queries the response was YES. [2025-03-14 01:36:20,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7250 conditions, 2151 events. 555/2151 cut-off events. For 5617/5734 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16973 event pairs, 27 based on Foata normal form. 10/2154 useless extension candidates. Maximal degree in co-relation 7206. Up to 358 conditions per place. [2025-03-14 01:36:20,078 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 36 selfloop transitions, 20 changer transitions 7/289 dead transitions. [2025-03-14 01:36:20,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 289 transitions, 2242 flow [2025-03-14 01:36:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1124 transitions. [2025-03-14 01:36:20,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7789327789327789 [2025-03-14 01:36:20,080 INFO L175 Difference]: Start difference. First operand has 207 places, 279 transitions, 2091 flow. Second operand 13 states and 1124 transitions. [2025-03-14 01:36:20,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 289 transitions, 2242 flow [2025-03-14 01:36:20,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 289 transitions, 2178 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-03-14 01:36:20,100 INFO L231 Difference]: Finished difference. Result has 209 places, 273 transitions, 2004 flow [2025-03-14 01:36:20,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2004, PETRI_PLACES=209, PETRI_TRANSITIONS=273} [2025-03-14 01:36:20,100 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2025-03-14 01:36:20,100 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 273 transitions, 2004 flow [2025-03-14 01:36:20,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:20,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:20,101 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] [2025-03-14 01:36:20,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-14 01:36:20,101 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:20,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2014051008, now seen corresponding path program 18 times [2025-03-14 01:36:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:20,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594305427] [2025-03-14 01:36:20,102 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:20,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:20,110 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:20,112 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:20,112 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:20,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:20,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:20,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594305427] [2025-03-14 01:36:20,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594305427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:20,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:20,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:20,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132572360] [2025-03-14 01:36:20,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:20,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:20,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:20,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:20,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:20,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:20,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 273 transitions, 2004 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:20,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:20,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:20,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:21,065 INFO L124 PetriNetUnfolderBase]: 554/2105 cut-off events. [2025-03-14 01:36:21,066 INFO L125 PetriNetUnfolderBase]: For 5290/5391 co-relation queries the response was YES. [2025-03-14 01:36:21,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7045 conditions, 2105 events. 554/2105 cut-off events. For 5290/5391 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16513 event pairs, 26 based on Foata normal form. 14/2113 useless extension candidates. Maximal degree in co-relation 6999. Up to 348 conditions per place. [2025-03-14 01:36:21,075 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 32 selfloop transitions, 25 changer transitions 4/287 dead transitions. [2025-03-14 01:36:21,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 287 transitions, 2219 flow [2025-03-14 01:36:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-03-14 01:36:21,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-03-14 01:36:21,076 INFO L175 Difference]: Start difference. First operand has 209 places, 273 transitions, 2004 flow. Second operand 13 states and 1121 transitions. [2025-03-14 01:36:21,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 287 transitions, 2219 flow [2025-03-14 01:36:21,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 287 transitions, 2141 flow, removed 14 selfloop flow, removed 16 redundant places. [2025-03-14 01:36:21,095 INFO L231 Difference]: Finished difference. Result has 202 places, 273 transitions, 2003 flow [2025-03-14 01:36:21,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2003, PETRI_PLACES=202, PETRI_TRANSITIONS=273} [2025-03-14 01:36:21,096 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 88 predicate places. [2025-03-14 01:36:21,096 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 273 transitions, 2003 flow [2025-03-14 01:36:21,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:21,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:21,096 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] [2025-03-14 01:36:21,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-14 01:36:21,096 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:21,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:21,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2104851088, now seen corresponding path program 19 times [2025-03-14 01:36:21,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:21,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961807153] [2025-03-14 01:36:21,097 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:21,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:21,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:21,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:21,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:21,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:21,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961807153] [2025-03-14 01:36:21,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961807153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:21,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:21,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:21,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554414913] [2025-03-14 01:36:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:21,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:21,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:21,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:21,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:21,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:21,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 273 transitions, 2003 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:21,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:21,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:21,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:21,851 INFO L124 PetriNetUnfolderBase]: 281/1215 cut-off events. [2025-03-14 01:36:21,851 INFO L125 PetriNetUnfolderBase]: For 2668/2728 co-relation queries the response was YES. [2025-03-14 01:36:21,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3900 conditions, 1215 events. 281/1215 cut-off events. For 2668/2728 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8055 event pairs, 13 based on Foata normal form. 8/1221 useless extension candidates. Maximal degree in co-relation 3858. Up to 185 conditions per place. [2025-03-14 01:36:21,856 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 27 selfloop transitions, 13 changer transitions 11/277 dead transitions. [2025-03-14 01:36:21,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 277 transitions, 2081 flow [2025-03-14 01:36:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-03-14 01:36:21,857 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-03-14 01:36:21,857 INFO L175 Difference]: Start difference. First operand has 202 places, 273 transitions, 2003 flow. Second operand 13 states and 1114 transitions. [2025-03-14 01:36:21,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 277 transitions, 2081 flow [2025-03-14 01:36:21,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 277 transitions, 2033 flow, removed 3 selfloop flow, removed 13 redundant places. [2025-03-14 01:36:21,868 INFO L231 Difference]: Finished difference. Result has 200 places, 258 transitions, 1844 flow [2025-03-14 01:36:21,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1880, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1844, PETRI_PLACES=200, PETRI_TRANSITIONS=258} [2025-03-14 01:36:21,868 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 86 predicate places. [2025-03-14 01:36:21,868 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 258 transitions, 1844 flow [2025-03-14 01:36:21,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:21,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:21,869 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] [2025-03-14 01:36:21,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-03-14 01:36:21,869 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:21,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash 621630642, now seen corresponding path program 20 times [2025-03-14 01:36:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:21,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473528375] [2025-03-14 01:36:21,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:21,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:21,875 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:21,877 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:21,877 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:21,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:22,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:22,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473528375] [2025-03-14 01:36:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473528375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:22,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118870441] [2025-03-14 01:36:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:22,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:22,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:22,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:22,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:22,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 258 transitions, 1844 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:22,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:22,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:22,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:22,799 INFO L124 PetriNetUnfolderBase]: 284/1258 cut-off events. [2025-03-14 01:36:22,799 INFO L125 PetriNetUnfolderBase]: For 2677/2720 co-relation queries the response was YES. [2025-03-14 01:36:22,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4003 conditions, 1258 events. 284/1258 cut-off events. For 2677/2720 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8630 event pairs, 18 based on Foata normal form. 9/1265 useless extension candidates. Maximal degree in co-relation 3963. Up to 210 conditions per place. [2025-03-14 01:36:22,804 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 29 selfloop transitions, 15 changer transitions 19/287 dead transitions. [2025-03-14 01:36:22,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 287 transitions, 2179 flow [2025-03-14 01:36:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:22,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-03-14 01:36:22,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-03-14 01:36:22,805 INFO L175 Difference]: Start difference. First operand has 200 places, 258 transitions, 1844 flow. Second operand 13 states and 1123 transitions. [2025-03-14 01:36:22,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 287 transitions, 2179 flow [2025-03-14 01:36:22,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 287 transitions, 1982 flow, removed 4 selfloop flow, removed 18 redundant places. [2025-03-14 01:36:22,818 INFO L231 Difference]: Finished difference. Result has 185 places, 255 transitions, 1777 flow [2025-03-14 01:36:22,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1755, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1777, PETRI_PLACES=185, PETRI_TRANSITIONS=255} [2025-03-14 01:36:22,818 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 71 predicate places. [2025-03-14 01:36:22,818 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 255 transitions, 1777 flow [2025-03-14 01:36:22,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:22,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:22,819 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] [2025-03-14 01:36:22,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-03-14 01:36:22,819 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:22,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:22,819 INFO L85 PathProgramCache]: Analyzing trace with hash 959938304, now seen corresponding path program 21 times [2025-03-14 01:36:22,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:22,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794553240] [2025-03-14 01:36:22,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:22,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:22,826 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:22,828 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:22,828 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:22,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:23,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:23,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794553240] [2025-03-14 01:36:23,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794553240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:23,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:23,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:23,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377405353] [2025-03-14 01:36:23,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:23,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:23,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:23,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:23,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:23,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:23,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 255 transitions, 1777 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:23,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:23,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:23,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:23,773 INFO L124 PetriNetUnfolderBase]: 527/1966 cut-off events. [2025-03-14 01:36:23,773 INFO L125 PetriNetUnfolderBase]: For 3869/3970 co-relation queries the response was YES. [2025-03-14 01:36:23,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6236 conditions, 1966 events. 527/1966 cut-off events. For 3869/3970 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 15096 event pairs, 21 based on Foata normal form. 11/1972 useless extension candidates. Maximal degree in co-relation 6198. Up to 341 conditions per place. [2025-03-14 01:36:23,781 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 28 selfloop transitions, 22 changer transitions 2/276 dead transitions. [2025-03-14 01:36:23,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 276 transitions, 1978 flow [2025-03-14 01:36:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2025-03-14 01:36:23,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.774081774081774 [2025-03-14 01:36:23,782 INFO L175 Difference]: Start difference. First operand has 185 places, 255 transitions, 1777 flow. Second operand 13 states and 1117 transitions. [2025-03-14 01:36:23,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 276 transitions, 1978 flow [2025-03-14 01:36:23,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 276 transitions, 1912 flow, removed 6 selfloop flow, removed 12 redundant places. [2025-03-14 01:36:23,797 INFO L231 Difference]: Finished difference. Result has 185 places, 261 transitions, 1837 flow [2025-03-14 01:36:23,797 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1738, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1837, PETRI_PLACES=185, PETRI_TRANSITIONS=261} [2025-03-14 01:36:23,798 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 71 predicate places. [2025-03-14 01:36:23,798 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 261 transitions, 1837 flow [2025-03-14 01:36:23,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:23,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:23,798 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] [2025-03-14 01:36:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-03-14 01:36:23,798 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:23,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2090230595, now seen corresponding path program 10 times [2025-03-14 01:36:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:23,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516382810] [2025-03-14 01:36:23,799 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:23,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:23,807 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:23,811 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:23,811 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:23,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:24,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516382810] [2025-03-14 01:36:24,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516382810] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:24,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:24,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:24,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465824042] [2025-03-14 01:36:24,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:24,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:24,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:24,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:24,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:24,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:24,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 261 transitions, 1837 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:24,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:24,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:24,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:24,809 INFO L124 PetriNetUnfolderBase]: 800/2898 cut-off events. [2025-03-14 01:36:24,809 INFO L125 PetriNetUnfolderBase]: For 6179/6307 co-relation queries the response was YES. [2025-03-14 01:36:24,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 2898 events. 800/2898 cut-off events. For 6179/6307 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 24832 event pairs, 36 based on Foata normal form. 16/2908 useless extension candidates. Maximal degree in co-relation 9397. Up to 536 conditions per place. [2025-03-14 01:36:24,822 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 39 selfloop transitions, 20 changer transitions 7/290 dead transitions. [2025-03-14 01:36:24,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 290 transitions, 2133 flow [2025-03-14 01:36:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-03-14 01:36:24,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-03-14 01:36:24,823 INFO L175 Difference]: Start difference. First operand has 185 places, 261 transitions, 1837 flow. Second operand 13 states and 1121 transitions. [2025-03-14 01:36:24,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 290 transitions, 2133 flow [2025-03-14 01:36:24,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 290 transitions, 2076 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-03-14 01:36:24,843 INFO L231 Difference]: Finished difference. Result has 192 places, 267 transitions, 1914 flow [2025-03-14 01:36:24,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1806, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1914, PETRI_PLACES=192, PETRI_TRANSITIONS=267} [2025-03-14 01:36:24,844 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 78 predicate places. [2025-03-14 01:36:24,844 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 267 transitions, 1914 flow [2025-03-14 01:36:24,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:24,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:24,844 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] [2025-03-14 01:36:24,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-03-14 01:36:24,844 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1851275793, now seen corresponding path program 11 times [2025-03-14 01:36:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:24,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124890780] [2025-03-14 01:36:24,845 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:24,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:24,851 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:24,853 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:24,853 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:24,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:25,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:25,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124890780] [2025-03-14 01:36:25,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124890780] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:25,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:25,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:25,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891019713] [2025-03-14 01:36:25,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:25,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:25,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:25,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:25,439 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:25,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 267 transitions, 1914 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:25,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:25,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:25,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:25,858 INFO L124 PetriNetUnfolderBase]: 1066/3727 cut-off events. [2025-03-14 01:36:25,858 INFO L125 PetriNetUnfolderBase]: For 8830/9056 co-relation queries the response was YES. [2025-03-14 01:36:25,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12382 conditions, 3727 events. 1066/3727 cut-off events. For 8830/9056 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 33725 event pairs, 44 based on Foata normal form. 18/3736 useless extension candidates. Maximal degree in co-relation 12340. Up to 687 conditions per place. [2025-03-14 01:36:25,875 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 35 selfloop transitions, 27 changer transitions 3/289 dead transitions. [2025-03-14 01:36:25,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 289 transitions, 2193 flow [2025-03-14 01:36:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-03-14 01:36:25,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-03-14 01:36:25,877 INFO L175 Difference]: Start difference. First operand has 192 places, 267 transitions, 1914 flow. Second operand 13 states and 1121 transitions. [2025-03-14 01:36:25,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 289 transitions, 2193 flow [2025-03-14 01:36:25,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 289 transitions, 2141 flow, removed 8 selfloop flow, removed 9 redundant places. [2025-03-14 01:36:25,905 INFO L231 Difference]: Finished difference. Result has 198 places, 275 transitions, 2029 flow [2025-03-14 01:36:25,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2029, PETRI_PLACES=198, PETRI_TRANSITIONS=275} [2025-03-14 01:36:25,906 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 84 predicate places. [2025-03-14 01:36:25,906 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 275 transitions, 2029 flow [2025-03-14 01:36:25,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:25,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:25,906 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] [2025-03-14 01:36:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-14 01:36:25,906 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:25,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 139479201, now seen corresponding path program 12 times [2025-03-14 01:36:25,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:25,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598732790] [2025-03-14 01:36:25,907 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:25,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:25,913 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:25,915 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:25,915 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:25,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:26,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:26,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598732790] [2025-03-14 01:36:26,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598732790] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:26,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:26,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:26,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518159787] [2025-03-14 01:36:26,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:26,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:26,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:26,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:26,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:26,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:26,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 275 transitions, 2029 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:26,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:26,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:26,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:27,030 INFO L124 PetriNetUnfolderBase]: 1341/4672 cut-off events. [2025-03-14 01:36:27,031 INFO L125 PetriNetUnfolderBase]: For 12021/12302 co-relation queries the response was YES. [2025-03-14 01:36:27,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15860 conditions, 4672 events. 1341/4672 cut-off events. For 12021/12302 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 44380 event pairs, 66 based on Foata normal form. 23/4684 useless extension candidates. Maximal degree in co-relation 15815. Up to 865 conditions per place. [2025-03-14 01:36:27,058 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 50 selfloop transitions, 25 changer transitions 6/305 dead transitions. [2025-03-14 01:36:27,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 305 transitions, 2414 flow [2025-03-14 01:36:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2025-03-14 01:36:27,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2025-03-14 01:36:27,059 INFO L175 Difference]: Start difference. First operand has 198 places, 275 transitions, 2029 flow. Second operand 13 states and 1127 transitions. [2025-03-14 01:36:27,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 305 transitions, 2414 flow [2025-03-14 01:36:27,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 305 transitions, 2357 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-03-14 01:36:27,100 INFO L231 Difference]: Finished difference. Result has 207 places, 282 transitions, 2141 flow [2025-03-14 01:36:27,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1985, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2141, PETRI_PLACES=207, PETRI_TRANSITIONS=282} [2025-03-14 01:36:27,100 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-03-14 01:36:27,100 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 282 transitions, 2141 flow [2025-03-14 01:36:27,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:27,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:27,101 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] [2025-03-14 01:36:27,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-03-14 01:36:27,101 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:27,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1530199231, now seen corresponding path program 13 times [2025-03-14 01:36:27,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669909962] [2025-03-14 01:36:27,101 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:27,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:27,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:27,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:27,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:27,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:27,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669909962] [2025-03-14 01:36:27,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669909962] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:27,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:27,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795532338] [2025-03-14 01:36:27,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:27,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:27,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:27,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:27,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:27,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 282 transitions, 2141 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:27,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:27,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:27,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:28,171 INFO L124 PetriNetUnfolderBase]: 1339/4696 cut-off events. [2025-03-14 01:36:28,171 INFO L125 PetriNetUnfolderBase]: For 12641/12891 co-relation queries the response was YES. [2025-03-14 01:36:28,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16095 conditions, 4696 events. 1339/4696 cut-off events. For 12641/12891 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 44774 event pairs, 58 based on Foata normal form. 30/4716 useless extension candidates. Maximal degree in co-relation 16045. Up to 883 conditions per place. [2025-03-14 01:36:28,193 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 47 selfloop transitions, 29 changer transitions 10/308 dead transitions. [2025-03-14 01:36:28,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 308 transitions, 2517 flow [2025-03-14 01:36:28,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:28,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1120 transitions. [2025-03-14 01:36:28,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7761607761607762 [2025-03-14 01:36:28,194 INFO L175 Difference]: Start difference. First operand has 207 places, 282 transitions, 2141 flow. Second operand 13 states and 1120 transitions. [2025-03-14 01:36:28,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 308 transitions, 2517 flow [2025-03-14 01:36:28,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 308 transitions, 2446 flow, removed 22 selfloop flow, removed 8 redundant places. [2025-03-14 01:36:28,232 INFO L231 Difference]: Finished difference. Result has 214 places, 281 transitions, 2175 flow [2025-03-14 01:36:28,232 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2089, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2175, PETRI_PLACES=214, PETRI_TRANSITIONS=281} [2025-03-14 01:36:28,232 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 100 predicate places. [2025-03-14 01:36:28,232 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 281 transitions, 2175 flow [2025-03-14 01:36:28,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:28,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:28,233 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] [2025-03-14 01:36:28,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-14 01:36:28,233 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:28,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:28,233 INFO L85 PathProgramCache]: Analyzing trace with hash 955716775, now seen corresponding path program 14 times [2025-03-14 01:36:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:28,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518617614] [2025-03-14 01:36:28,234 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:28,241 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:28,243 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:28,243 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:28,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:28,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:28,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518617614] [2025-03-14 01:36:28,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518617614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:28,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:28,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:28,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238570699] [2025-03-14 01:36:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:28,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:28,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:28,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:28,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:28,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 281 transitions, 2175 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:28,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:28,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:28,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:29,204 INFO L124 PetriNetUnfolderBase]: 1331/4559 cut-off events. [2025-03-14 01:36:29,204 INFO L125 PetriNetUnfolderBase]: For 13092/13364 co-relation queries the response was YES. [2025-03-14 01:36:29,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15830 conditions, 4559 events. 1331/4559 cut-off events. For 13092/13364 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 43116 event pairs, 60 based on Foata normal form. 21/4570 useless extension candidates. Maximal degree in co-relation 15777. Up to 837 conditions per place. [2025-03-14 01:36:29,232 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 43 selfloop transitions, 28 changer transitions 1/294 dead transitions. [2025-03-14 01:36:29,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 294 transitions, 2443 flow [2025-03-14 01:36:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-03-14 01:36:29,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-03-14 01:36:29,233 INFO L175 Difference]: Start difference. First operand has 214 places, 281 transitions, 2175 flow. Second operand 13 states and 1122 transitions. [2025-03-14 01:36:29,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 294 transitions, 2443 flow [2025-03-14 01:36:29,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 294 transitions, 2310 flow, removed 27 selfloop flow, removed 13 redundant places. [2025-03-14 01:36:29,279 INFO L231 Difference]: Finished difference. Result has 215 places, 286 transitions, 2205 flow [2025-03-14 01:36:29,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2074, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2205, PETRI_PLACES=215, PETRI_TRANSITIONS=286} [2025-03-14 01:36:29,280 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 101 predicate places. [2025-03-14 01:36:29,280 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 286 transitions, 2205 flow [2025-03-14 01:36:29,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:29,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:29,280 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] [2025-03-14 01:36:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-03-14 01:36:29,280 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2101967199, now seen corresponding path program 15 times [2025-03-14 01:36:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607795440] [2025-03-14 01:36:29,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:29,287 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:29,289 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:29,289 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:29,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:29,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:29,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607795440] [2025-03-14 01:36:29,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607795440] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:29,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:29,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:29,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357429750] [2025-03-14 01:36:29,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:29,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:29,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:29,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:29,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:29,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:29,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 286 transitions, 2205 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:29,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:29,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:29,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:30,475 INFO L124 PetriNetUnfolderBase]: 1597/5433 cut-off events. [2025-03-14 01:36:30,475 INFO L125 PetriNetUnfolderBase]: For 15567/15844 co-relation queries the response was YES. [2025-03-14 01:36:30,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18781 conditions, 5433 events. 1597/5433 cut-off events. For 15567/15844 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 53456 event pairs, 71 based on Foata normal form. 21/5442 useless extension candidates. Maximal degree in co-relation 18728. Up to 1018 conditions per place. [2025-03-14 01:36:30,509 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 50 selfloop transitions, 28 changer transitions 5/305 dead transitions. [2025-03-14 01:36:30,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 305 transitions, 2561 flow [2025-03-14 01:36:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:30,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-03-14 01:36:30,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-03-14 01:36:30,511 INFO L175 Difference]: Start difference. First operand has 215 places, 286 transitions, 2205 flow. Second operand 13 states and 1123 transitions. [2025-03-14 01:36:30,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 305 transitions, 2561 flow [2025-03-14 01:36:30,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 305 transitions, 2461 flow, removed 32 selfloop flow, removed 8 redundant places. [2025-03-14 01:36:30,564 INFO L231 Difference]: Finished difference. Result has 222 places, 292 transitions, 2291 flow [2025-03-14 01:36:30,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2291, PETRI_PLACES=222, PETRI_TRANSITIONS=292} [2025-03-14 01:36:30,565 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 108 predicate places. [2025-03-14 01:36:30,565 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 292 transitions, 2291 flow [2025-03-14 01:36:30,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:30,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:30,565 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] [2025-03-14 01:36:30,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-03-14 01:36:30,565 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:30,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1155783291, now seen corresponding path program 16 times [2025-03-14 01:36:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067282528] [2025-03-14 01:36:30,566 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:30,572 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:30,575 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:30,576 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:30,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:30,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067282528] [2025-03-14 01:36:30,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067282528] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:30,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:30,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-14 01:36:30,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728322913] [2025-03-14 01:36:30,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:30,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 01:36:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:30,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 01:36:30,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-03-14 01:36:31,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-03-14 01:36:31,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 292 transitions, 2291 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:31,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:31,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-03-14 01:36:31,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:32,374 INFO L124 PetriNetUnfolderBase]: 2470/7497 cut-off events. [2025-03-14 01:36:32,375 INFO L125 PetriNetUnfolderBase]: For 31928/32597 co-relation queries the response was YES. [2025-03-14 01:36:32,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29963 conditions, 7497 events. 2470/7497 cut-off events. For 31928/32597 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 73754 event pairs, 313 based on Foata normal form. 153/7602 useless extension candidates. Maximal degree in co-relation 29907. Up to 1381 conditions per place. [2025-03-14 01:36:32,419 INFO L140 encePairwiseOnDemand]: 88/111 looper letters, 567 selfloop transitions, 137 changer transitions 30/826 dead transitions. [2025-03-14 01:36:32,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 826 transitions, 8775 flow [2025-03-14 01:36:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-14 01:36:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-14 01:36:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1652 transitions. [2025-03-14 01:36:32,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7441441441441441 [2025-03-14 01:36:32,420 INFO L175 Difference]: Start difference. First operand has 222 places, 292 transitions, 2291 flow. Second operand 20 states and 1652 transitions. [2025-03-14 01:36:32,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 826 transitions, 8775 flow [2025-03-14 01:36:32,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 826 transitions, 8721 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-03-14 01:36:32,504 INFO L231 Difference]: Finished difference. Result has 241 places, 397 transitions, 4039 flow [2025-03-14 01:36:32,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2249, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4039, PETRI_PLACES=241, PETRI_TRANSITIONS=397} [2025-03-14 01:36:32,505 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 127 predicate places. [2025-03-14 01:36:32,505 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 397 transitions, 4039 flow [2025-03-14 01:36:32,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:32,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:32,505 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] [2025-03-14 01:36:32,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-03-14 01:36:32,505 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:32,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:32,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1847820493, now seen corresponding path program 17 times [2025-03-14 01:36:32,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:32,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313061234] [2025-03-14 01:36:32,506 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:32,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:32,512 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:32,514 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:32,514 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:32,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:32,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:32,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313061234] [2025-03-14 01:36:32,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313061234] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:32,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:32,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904522438] [2025-03-14 01:36:32,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:32,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:32,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:32,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:33,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:33,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 397 transitions, 4039 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:33,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:33,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:33,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:33,763 INFO L124 PetriNetUnfolderBase]: 1637/5587 cut-off events. [2025-03-14 01:36:33,763 INFO L125 PetriNetUnfolderBase]: For 20402/20719 co-relation queries the response was YES. [2025-03-14 01:36:33,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20563 conditions, 5587 events. 1637/5587 cut-off events. For 20402/20719 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 55236 event pairs, 70 based on Foata normal form. 21/5595 useless extension candidates. Maximal degree in co-relation 20498. Up to 1047 conditions per place. [2025-03-14 01:36:33,795 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 56 selfloop transitions, 24 changer transitions 9/404 dead transitions. [2025-03-14 01:36:33,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 404 transitions, 4241 flow [2025-03-14 01:36:33,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1119 transitions. [2025-03-14 01:36:33,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7754677754677755 [2025-03-14 01:36:33,797 INFO L175 Difference]: Start difference. First operand has 241 places, 397 transitions, 4039 flow. Second operand 13 states and 1119 transitions. [2025-03-14 01:36:33,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 404 transitions, 4241 flow [2025-03-14 01:36:33,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 404 transitions, 4145 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-03-14 01:36:33,880 INFO L231 Difference]: Finished difference. Result has 248 places, 391 transitions, 3914 flow [2025-03-14 01:36:33,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3881, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3914, PETRI_PLACES=248, PETRI_TRANSITIONS=391} [2025-03-14 01:36:33,880 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 134 predicate places. [2025-03-14 01:36:33,880 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 391 transitions, 3914 flow [2025-03-14 01:36:33,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:33,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:33,881 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:33,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2025-03-14 01:36:33,881 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:33,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:33,882 INFO L85 PathProgramCache]: Analyzing trace with hash 142085287, now seen corresponding path program 18 times [2025-03-14 01:36:33,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:33,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612506808] [2025-03-14 01:36:33,882 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:33,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:33,887 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:33,890 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:33,890 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:33,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:34,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:34,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612506808] [2025-03-14 01:36:34,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612506808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:34,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:34,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:34,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180746104] [2025-03-14 01:36:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:34,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:34,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:34,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:34,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:34,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:34,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 391 transitions, 3914 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:34,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:34,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:34,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:35,041 INFO L124 PetriNetUnfolderBase]: 1636/5529 cut-off events. [2025-03-14 01:36:35,041 INFO L125 PetriNetUnfolderBase]: For 19376/19676 co-relation queries the response was YES. [2025-03-14 01:36:35,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20109 conditions, 5529 events. 1636/5529 cut-off events. For 19376/19676 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 54512 event pairs, 70 based on Foata normal form. 29/5546 useless extension candidates. Maximal degree in co-relation 20043. Up to 1040 conditions per place. [2025-03-14 01:36:35,066 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 46 selfloop transitions, 35 changer transitions 5/399 dead transitions. [2025-03-14 01:36:35,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 399 transitions, 4174 flow [2025-03-14 01:36:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:35,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-03-14 01:36:35,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-03-14 01:36:35,067 INFO L175 Difference]: Start difference. First operand has 248 places, 391 transitions, 3914 flow. Second operand 13 states and 1122 transitions. [2025-03-14 01:36:35,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 399 transitions, 4174 flow [2025-03-14 01:36:35,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 399 transitions, 4084 flow, removed 16 selfloop flow, removed 15 redundant places. [2025-03-14 01:36:35,139 INFO L231 Difference]: Finished difference. Result has 244 places, 390 transitions, 3939 flow [2025-03-14 01:36:35,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3845, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3939, PETRI_PLACES=244, PETRI_TRANSITIONS=390} [2025-03-14 01:36:35,140 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 130 predicate places. [2025-03-14 01:36:35,140 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 390 transitions, 3939 flow [2025-03-14 01:36:35,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:35,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:35,140 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] [2025-03-14 01:36:35,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2025-03-14 01:36:35,140 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:35,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:35,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2080706719, now seen corresponding path program 19 times [2025-03-14 01:36:35,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:35,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726749164] [2025-03-14 01:36:35,141 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:35,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:35,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:35,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:35,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:35,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:35,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:35,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726749164] [2025-03-14 01:36:35,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726749164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:35,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:35,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:35,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363838735] [2025-03-14 01:36:35,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:35,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:35,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:35,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:35,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:35,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:35,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 390 transitions, 3939 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:35,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:35,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:35,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:36,207 INFO L124 PetriNetUnfolderBase]: 1368/4716 cut-off events. [2025-03-14 01:36:36,207 INFO L125 PetriNetUnfolderBase]: For 16255/16514 co-relation queries the response was YES. [2025-03-14 01:36:36,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17192 conditions, 4716 events. 1368/4716 cut-off events. For 16255/16514 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 44861 event pairs, 60 based on Foata normal form. 17/4723 useless extension candidates. Maximal degree in co-relation 17127. Up to 875 conditions per place. [2025-03-14 01:36:36,238 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 46 selfloop transitions, 27 changer transitions 8/375 dead transitions. [2025-03-14 01:36:36,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 375 transitions, 3786 flow [2025-03-14 01:36:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-03-14 01:36:36,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-03-14 01:36:36,239 INFO L175 Difference]: Start difference. First operand has 244 places, 390 transitions, 3939 flow. Second operand 13 states and 1123 transitions. [2025-03-14 01:36:36,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 375 transitions, 3786 flow [2025-03-14 01:36:36,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 375 transitions, 3724 flow, removed 8 selfloop flow, removed 9 redundant places. [2025-03-14 01:36:36,301 INFO L231 Difference]: Finished difference. Result has 246 places, 365 transitions, 3523 flow [2025-03-14 01:36:36,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3526, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3523, PETRI_PLACES=246, PETRI_TRANSITIONS=365} [2025-03-14 01:36:36,302 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 132 predicate places. [2025-03-14 01:36:36,302 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 365 transitions, 3523 flow [2025-03-14 01:36:36,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:36,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:36,302 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] [2025-03-14 01:36:36,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2025-03-14 01:36:36,302 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:36,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1884905935, now seen corresponding path program 20 times [2025-03-14 01:36:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:36,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748144864] [2025-03-14 01:36:36,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:36,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:36,309 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:36,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:36,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:36,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748144864] [2025-03-14 01:36:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748144864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:36,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256303104] [2025-03-14 01:36:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:36,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:36,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:36,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:36,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:36,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:36,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 3523 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:36,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:36,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:36,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:37,304 INFO L124 PetriNetUnfolderBase]: 1059/3749 cut-off events. [2025-03-14 01:36:37,304 INFO L125 PetriNetUnfolderBase]: For 11924/12125 co-relation queries the response was YES. [2025-03-14 01:36:37,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13386 conditions, 3749 events. 1059/3749 cut-off events. For 11924/12125 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 34017 event pairs, 51 based on Foata normal form. 14/3755 useless extension candidates. Maximal degree in co-relation 13321. Up to 675 conditions per place. [2025-03-14 01:36:37,328 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 37 selfloop transitions, 19 changer transitions 9/308 dead transitions. [2025-03-14 01:36:37,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 308 transitions, 2793 flow [2025-03-14 01:36:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-03-14 01:36:37,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-03-14 01:36:37,329 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 3523 flow. Second operand 13 states and 1115 transitions. [2025-03-14 01:36:37,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 308 transitions, 2793 flow [2025-03-14 01:36:37,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 308 transitions, 2660 flow, removed 38 selfloop flow, removed 22 redundant places. [2025-03-14 01:36:37,381 INFO L231 Difference]: Finished difference. Result has 228 places, 298 transitions, 2472 flow [2025-03-14 01:36:37,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2530, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2472, PETRI_PLACES=228, PETRI_TRANSITIONS=298} [2025-03-14 01:36:37,381 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 114 predicate places. [2025-03-14 01:36:37,381 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 298 transitions, 2472 flow [2025-03-14 01:36:37,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:37,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:37,381 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] [2025-03-14 01:36:37,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-03-14 01:36:37,382 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:37,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:37,382 INFO L85 PathProgramCache]: Analyzing trace with hash -99169261, now seen corresponding path program 21 times [2025-03-14 01:36:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:37,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105950966] [2025-03-14 01:36:37,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:37,388 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:37,391 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:37,391 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:37,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:37,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:37,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105950966] [2025-03-14 01:36:37,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105950966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:37,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:37,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:37,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943199947] [2025-03-14 01:36:37,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:37,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:37,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:37,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:37,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:37,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 298 transitions, 2472 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:37,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:37,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:37,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:38,345 INFO L124 PetriNetUnfolderBase]: 791/2892 cut-off events. [2025-03-14 01:36:38,345 INFO L125 PetriNetUnfolderBase]: For 7854/7994 co-relation queries the response was YES. [2025-03-14 01:36:38,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9906 conditions, 2892 events. 791/2892 cut-off events. For 7854/7994 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24813 event pairs, 32 based on Foata normal form. 12/2898 useless extension candidates. Maximal degree in co-relation 9851. Up to 514 conditions per place. [2025-03-14 01:36:38,360 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 35 selfloop transitions, 22 changer transitions 8/308 dead transitions. [2025-03-14 01:36:38,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 2645 flow [2025-03-14 01:36:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1111 transitions. [2025-03-14 01:36:38,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7699237699237699 [2025-03-14 01:36:38,361 INFO L175 Difference]: Start difference. First operand has 228 places, 298 transitions, 2472 flow. Second operand 13 states and 1111 transitions. [2025-03-14 01:36:38,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 2645 flow [2025-03-14 01:36:38,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 308 transitions, 2557 flow, removed 16 selfloop flow, removed 17 redundant places. [2025-03-14 01:36:38,388 INFO L231 Difference]: Finished difference. Result has 214 places, 292 transitions, 2373 flow [2025-03-14 01:36:38,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2349, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2373, PETRI_PLACES=214, PETRI_TRANSITIONS=292} [2025-03-14 01:36:38,389 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 100 predicate places. [2025-03-14 01:36:38,389 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 292 transitions, 2373 flow [2025-03-14 01:36:38,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:38,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:38,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:38,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2025-03-14 01:36:38,389 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:38,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:38,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1241921901, now seen corresponding path program 22 times [2025-03-14 01:36:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:38,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159033454] [2025-03-14 01:36:38,390 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:38,396 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:38,400 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:38,400 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:38,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:38,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:38,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159033454] [2025-03-14 01:36:38,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159033454] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:38,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:38,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226297374] [2025-03-14 01:36:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:38,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:38,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:38,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:38,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:38,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 292 transitions, 2373 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:38,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:38,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:38,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:39,301 INFO L124 PetriNetUnfolderBase]: 793/2835 cut-off events. [2025-03-14 01:36:39,301 INFO L125 PetriNetUnfolderBase]: For 7566/7716 co-relation queries the response was YES. [2025-03-14 01:36:39,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9613 conditions, 2835 events. 793/2835 cut-off events. For 7566/7716 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24162 event pairs, 35 based on Foata normal form. 13/2842 useless extension candidates. Maximal degree in co-relation 9564. Up to 514 conditions per place. [2025-03-14 01:36:39,315 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 29 selfloop transitions, 24 changer transitions 7/301 dead transitions. [2025-03-14 01:36:39,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 301 transitions, 2548 flow [2025-03-14 01:36:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-03-14 01:36:39,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-03-14 01:36:39,316 INFO L175 Difference]: Start difference. First operand has 214 places, 292 transitions, 2373 flow. Second operand 13 states and 1114 transitions. [2025-03-14 01:36:39,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 301 transitions, 2548 flow [2025-03-14 01:36:39,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 301 transitions, 2465 flow, removed 8 selfloop flow, removed 16 redundant places. [2025-03-14 01:36:39,341 INFO L231 Difference]: Finished difference. Result has 207 places, 289 transitions, 2322 flow [2025-03-14 01:36:39,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2298, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2322, PETRI_PLACES=207, PETRI_TRANSITIONS=289} [2025-03-14 01:36:39,341 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-03-14 01:36:39,341 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 289 transitions, 2322 flow [2025-03-14 01:36:39,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:39,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:39,341 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] [2025-03-14 01:36:39,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2025-03-14 01:36:39,341 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:39,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1896386003, now seen corresponding path program 23 times [2025-03-14 01:36:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126205308] [2025-03-14 01:36:39,342 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:39,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:39,348 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:39,350 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:39,350 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:39,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:39,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:39,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126205308] [2025-03-14 01:36:39,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126205308] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:39,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:39,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205393560] [2025-03-14 01:36:39,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:39,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:39,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:39,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:39,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:39,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:39,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 289 transitions, 2322 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:39,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:39,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:39,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:40,357 INFO L124 PetriNetUnfolderBase]: 790/2853 cut-off events. [2025-03-14 01:36:40,357 INFO L125 PetriNetUnfolderBase]: For 7496/7646 co-relation queries the response was YES. [2025-03-14 01:36:40,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9607 conditions, 2853 events. 790/2853 cut-off events. For 7496/7646 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24408 event pairs, 36 based on Foata normal form. 10/2857 useless extension candidates. Maximal degree in co-relation 9562. Up to 516 conditions per place. [2025-03-14 01:36:40,370 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 30 selfloop transitions, 21 changer transitions 6/298 dead transitions. [2025-03-14 01:36:40,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 298 transitions, 2491 flow [2025-03-14 01:36:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-03-14 01:36:40,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-03-14 01:36:40,371 INFO L175 Difference]: Start difference. First operand has 207 places, 289 transitions, 2322 flow. Second operand 13 states and 1115 transitions. [2025-03-14 01:36:40,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 298 transitions, 2491 flow [2025-03-14 01:36:40,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 298 transitions, 2440 flow, removed 3 selfloop flow, removed 11 redundant places. [2025-03-14 01:36:40,395 INFO L231 Difference]: Finished difference. Result has 210 places, 289 transitions, 2331 flow [2025-03-14 01:36:40,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2331, PETRI_PLACES=210, PETRI_TRANSITIONS=289} [2025-03-14 01:36:40,396 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 96 predicate places. [2025-03-14 01:36:40,396 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 289 transitions, 2331 flow [2025-03-14 01:36:40,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:40,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:40,396 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] [2025-03-14 01:36:40,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2025-03-14 01:36:40,396 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:40,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash 142085077, now seen corresponding path program 24 times [2025-03-14 01:36:40,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:40,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868105762] [2025-03-14 01:36:40,397 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:40,403 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:40,405 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:40,405 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:40,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:40,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:40,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868105762] [2025-03-14 01:36:40,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868105762] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:40,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:40,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:40,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315906149] [2025-03-14 01:36:40,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:40,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:40,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:40,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:41,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:41,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 289 transitions, 2331 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:41,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:41,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:41,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:41,316 INFO L124 PetriNetUnfolderBase]: 525/2012 cut-off events. [2025-03-14 01:36:41,316 INFO L125 PetriNetUnfolderBase]: For 4876/4983 co-relation queries the response was YES. [2025-03-14 01:36:41,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6654 conditions, 2012 events. 525/2012 cut-off events. For 4876/4983 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 15605 event pairs, 25 based on Foata normal form. 7/2015 useless extension candidates. Maximal degree in co-relation 6607. Up to 348 conditions per place. [2025-03-14 01:36:41,327 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 23 selfloop transitions, 15 changer transitions 15/275 dead transitions. [2025-03-14 01:36:41,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 275 transitions, 2141 flow [2025-03-14 01:36:41,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:41,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1110 transitions. [2025-03-14 01:36:41,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2025-03-14 01:36:41,328 INFO L175 Difference]: Start difference. First operand has 210 places, 289 transitions, 2331 flow. Second operand 13 states and 1110 transitions. [2025-03-14 01:36:41,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 275 transitions, 2141 flow [2025-03-14 01:36:41,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 275 transitions, 2088 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-03-14 01:36:41,346 INFO L231 Difference]: Finished difference. Result has 209 places, 259 transitions, 1881 flow [2025-03-14 01:36:41,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1881, PETRI_PLACES=209, PETRI_TRANSITIONS=259} [2025-03-14 01:36:41,347 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2025-03-14 01:36:41,347 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 259 transitions, 1881 flow [2025-03-14 01:36:41,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:41,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:41,347 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] [2025-03-14 01:36:41,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2025-03-14 01:36:41,347 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:41,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2005159373, now seen corresponding path program 25 times [2025-03-14 01:36:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:41,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322242116] [2025-03-14 01:36:41,348 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:41,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:41,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:41,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:41,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:41,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:41,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322242116] [2025-03-14 01:36:41,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322242116] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:41,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:41,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:41,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692323071] [2025-03-14 01:36:41,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:41,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:41,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:41,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:41,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:41,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:41,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 259 transitions, 1881 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:41,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:41,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:41,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:42,286 INFO L124 PetriNetUnfolderBase]: 774/2736 cut-off events. [2025-03-14 01:36:42,286 INFO L125 PetriNetUnfolderBase]: For 6629/6769 co-relation queries the response was YES. [2025-03-14 01:36:42,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9037 conditions, 2736 events. 774/2736 cut-off events. For 6629/6769 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 23348 event pairs, 30 based on Foata normal form. 13/2743 useless extension candidates. Maximal degree in co-relation 8991. Up to 504 conditions per place. [2025-03-14 01:36:42,299 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 26 selfloop transitions, 25 changer transitions 1/274 dead transitions. [2025-03-14 01:36:42,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 274 transitions, 2069 flow [2025-03-14 01:36:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1116 transitions. [2025-03-14 01:36:42,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733887733887734 [2025-03-14 01:36:42,300 INFO L175 Difference]: Start difference. First operand has 209 places, 259 transitions, 1881 flow. Second operand 13 states and 1116 transitions. [2025-03-14 01:36:42,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 274 transitions, 2069 flow [2025-03-14 01:36:42,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 274 transitions, 1961 flow, removed 10 selfloop flow, removed 18 redundant places. [2025-03-14 01:36:42,321 INFO L231 Difference]: Finished difference. Result has 194 places, 267 transitions, 1920 flow [2025-03-14 01:36:42,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1920, PETRI_PLACES=194, PETRI_TRANSITIONS=267} [2025-03-14 01:36:42,321 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 80 predicate places. [2025-03-14 01:36:42,322 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 267 transitions, 1920 flow [2025-03-14 01:36:42,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:42,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:42,322 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] [2025-03-14 01:36:42,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2025-03-14 01:36:42,322 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:42,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1188411256, now seen corresponding path program 22 times [2025-03-14 01:36:42,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:42,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314151328] [2025-03-14 01:36:42,322 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:42,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:42,329 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:42,331 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:42,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:42,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:42,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:42,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314151328] [2025-03-14 01:36:42,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314151328] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:42,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:42,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-14 01:36:42,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679093022] [2025-03-14 01:36:42,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:42,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 01:36:42,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:42,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 01:36:42,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-14 01:36:42,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-03-14 01:36:42,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 267 transitions, 1920 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:42,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:42,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-03-14 01:36:42,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:43,718 INFO L124 PetriNetUnfolderBase]: 1406/4302 cut-off events. [2025-03-14 01:36:43,719 INFO L125 PetriNetUnfolderBase]: For 14666/15186 co-relation queries the response was YES. [2025-03-14 01:36:43,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16274 conditions, 4302 events. 1406/4302 cut-off events. For 14666/15186 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 37965 event pairs, 59 based on Foata normal form. 123/4407 useless extension candidates. Maximal degree in co-relation 16231. Up to 1164 conditions per place. [2025-03-14 01:36:43,740 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 326 selfloop transitions, 100 changer transitions 70/589 dead transitions. [2025-03-14 01:36:43,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 589 transitions, 5797 flow [2025-03-14 01:36:43,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-14 01:36:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-14 01:36:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1616 transitions. [2025-03-14 01:36:43,741 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7279279279279279 [2025-03-14 01:36:43,741 INFO L175 Difference]: Start difference. First operand has 194 places, 267 transitions, 1920 flow. Second operand 20 states and 1616 transitions. [2025-03-14 01:36:43,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 589 transitions, 5797 flow [2025-03-14 01:36:43,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 589 transitions, 5748 flow, removed 1 selfloop flow, removed 8 redundant places. [2025-03-14 01:36:43,775 INFO L231 Difference]: Finished difference. Result has 216 places, 332 transitions, 2980 flow [2025-03-14 01:36:43,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2980, PETRI_PLACES=216, PETRI_TRANSITIONS=332} [2025-03-14 01:36:43,776 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 102 predicate places. [2025-03-14 01:36:43,776 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 332 transitions, 2980 flow [2025-03-14 01:36:43,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:43,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:43,776 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] [2025-03-14 01:36:43,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2025-03-14 01:36:43,776 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:43,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:43,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1379666112, now seen corresponding path program 23 times [2025-03-14 01:36:43,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:43,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637113807] [2025-03-14 01:36:43,777 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:43,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:43,784 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:43,786 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:43,786 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 01:36:43,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:44,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:44,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637113807] [2025-03-14 01:36:44,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637113807] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:44,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:44,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:44,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338866010] [2025-03-14 01:36:44,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:44,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:44,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:44,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:44,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:44,473 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:44,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 332 transitions, 2980 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:44,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:44,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:44,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:44,960 INFO L124 PetriNetUnfolderBase]: 1093/3716 cut-off events. [2025-03-14 01:36:44,960 INFO L125 PetriNetUnfolderBase]: For 12788/13034 co-relation queries the response was YES. [2025-03-14 01:36:44,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13524 conditions, 3716 events. 1093/3716 cut-off events. For 12788/13034 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 33771 event pairs, 41 based on Foata normal form. 30/3738 useless extension candidates. Maximal degree in co-relation 13470. Up to 701 conditions per place. [2025-03-14 01:36:44,978 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 37 selfloop transitions, 28 changer transitions 3/344 dead transitions. [2025-03-14 01:36:44,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 344 transitions, 3201 flow [2025-03-14 01:36:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-03-14 01:36:44,979 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-03-14 01:36:44,979 INFO L175 Difference]: Start difference. First operand has 216 places, 332 transitions, 2980 flow. Second operand 13 states and 1114 transitions. [2025-03-14 01:36:44,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 344 transitions, 3201 flow [2025-03-14 01:36:45,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 344 transitions, 3140 flow, removed 11 selfloop flow, removed 7 redundant places. [2025-03-14 01:36:45,020 INFO L231 Difference]: Finished difference. Result has 222 places, 334 transitions, 3019 flow [2025-03-14 01:36:45,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2926, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3019, PETRI_PLACES=222, PETRI_TRANSITIONS=334} [2025-03-14 01:36:45,020 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 108 predicate places. [2025-03-14 01:36:45,020 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 334 transitions, 3019 flow [2025-03-14 01:36:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:45,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:45,021 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] [2025-03-14 01:36:45,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2025-03-14 01:36:45,021 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:45,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1560487624, now seen corresponding path program 24 times [2025-03-14 01:36:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684137610] [2025-03-14 01:36:45,022 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:45,029 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:45,032 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:45,032 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:45,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:45,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:45,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684137610] [2025-03-14 01:36:45,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684137610] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:45,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:45,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:45,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648489726] [2025-03-14 01:36:45,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:45,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:45,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:45,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:45,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:45,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:45,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 334 transitions, 3019 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:45,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:45,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:45,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:46,058 INFO L124 PetriNetUnfolderBase]: 824/2878 cut-off events. [2025-03-14 01:36:46,058 INFO L125 PetriNetUnfolderBase]: For 10055/10252 co-relation queries the response was YES. [2025-03-14 01:36:46,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10390 conditions, 2878 events. 824/2878 cut-off events. For 10055/10252 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 24658 event pairs, 29 based on Foata normal form. 22/2894 useless extension candidates. Maximal degree in co-relation 10334. Up to 530 conditions per place. [2025-03-14 01:36:46,073 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 33 selfloop transitions, 19 changer transitions 8/336 dead transitions. [2025-03-14 01:36:46,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 336 transitions, 3135 flow [2025-03-14 01:36:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1108 transitions. [2025-03-14 01:36:46,074 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7678447678447679 [2025-03-14 01:36:46,074 INFO L175 Difference]: Start difference. First operand has 222 places, 334 transitions, 3019 flow. Second operand 13 states and 1108 transitions. [2025-03-14 01:36:46,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 336 transitions, 3135 flow [2025-03-14 01:36:46,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 336 transitions, 3070 flow, removed 8 selfloop flow, removed 12 redundant places. [2025-03-14 01:36:46,106 INFO L231 Difference]: Finished difference. Result has 224 places, 325 transitions, 2921 flow [2025-03-14 01:36:46,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2904, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2921, PETRI_PLACES=224, PETRI_TRANSITIONS=325} [2025-03-14 01:36:46,107 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 110 predicate places. [2025-03-14 01:36:46,107 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 325 transitions, 2921 flow [2025-03-14 01:36:46,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:46,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:46,107 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] [2025-03-14 01:36:46,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2025-03-14 01:36:46,107 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:46,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:46,108 INFO L85 PathProgramCache]: Analyzing trace with hash -554400382, now seen corresponding path program 25 times [2025-03-14 01:36:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411066770] [2025-03-14 01:36:46,108 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:46,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:46,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-14 01:36:46,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:46,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:46,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:46,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:46,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:46,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411066770] [2025-03-14 01:36:46,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411066770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:46,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:46,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:46,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791609984] [2025-03-14 01:36:46,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:46,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:46,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:46,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:46,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:46,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:46,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 325 transitions, 2921 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:46,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:46,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:46,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:47,167 INFO L124 PetriNetUnfolderBase]: 824/2849 cut-off events. [2025-03-14 01:36:47,167 INFO L125 PetriNetUnfolderBase]: For 9943/10127 co-relation queries the response was YES. [2025-03-14 01:36:47,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10293 conditions, 2849 events. 824/2849 cut-off events. For 9943/10127 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 24477 event pairs, 31 based on Foata normal form. 37/2880 useless extension candidates. Maximal degree in co-relation 10237. Up to 528 conditions per place. [2025-03-14 01:36:47,179 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 18 selfloop transitions, 33 changer transitions 4/331 dead transitions. [2025-03-14 01:36:47,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 331 transitions, 3114 flow [2025-03-14 01:36:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1107 transitions. [2025-03-14 01:36:47,180 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7671517671517671 [2025-03-14 01:36:47,180 INFO L175 Difference]: Start difference. First operand has 224 places, 325 transitions, 2921 flow. Second operand 13 states and 1107 transitions. [2025-03-14 01:36:47,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 331 transitions, 3114 flow [2025-03-14 01:36:47,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 331 transitions, 2996 flow, removed 9 selfloop flow, removed 18 redundant places. [2025-03-14 01:36:47,210 INFO L231 Difference]: Finished difference. Result has 213 places, 325 transitions, 2925 flow [2025-03-14 01:36:47,211 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2824, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2925, PETRI_PLACES=213, PETRI_TRANSITIONS=325} [2025-03-14 01:36:47,211 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 99 predicate places. [2025-03-14 01:36:47,211 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 325 transitions, 2925 flow [2025-03-14 01:36:47,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:47,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:47,211 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] [2025-03-14 01:36:47,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2025-03-14 01:36:47,211 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:47,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:47,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1304707274, now seen corresponding path program 26 times [2025-03-14 01:36:47,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306649819] [2025-03-14 01:36:47,212 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:47,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:47,218 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:47,220 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:47,220 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:47,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:47,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306649819] [2025-03-14 01:36:47,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306649819] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:47,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:47,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:47,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872254061] [2025-03-14 01:36:47,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:47,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:47,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:47,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:47,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:47,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:47,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 325 transitions, 2925 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:47,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:47,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:47,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:48,124 INFO L124 PetriNetUnfolderBase]: 559/2019 cut-off events. [2025-03-14 01:36:48,124 INFO L125 PetriNetUnfolderBase]: For 6949/7065 co-relation queries the response was YES. [2025-03-14 01:36:48,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 2019 events. 559/2019 cut-off events. For 6949/7065 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15773 event pairs, 21 based on Foata normal form. 12/2027 useless extension candidates. Maximal degree in co-relation 7251. Up to 364 conditions per place. [2025-03-14 01:36:48,135 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 23 selfloop transitions, 20 changer transitions 7/326 dead transitions. [2025-03-14 01:36:48,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 326 transitions, 3034 flow [2025-03-14 01:36:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:48,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:48,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1104 transitions. [2025-03-14 01:36:48,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7650727650727651 [2025-03-14 01:36:48,136 INFO L175 Difference]: Start difference. First operand has 213 places, 325 transitions, 2925 flow. Second operand 13 states and 1104 transitions. [2025-03-14 01:36:48,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 326 transitions, 3034 flow [2025-03-14 01:36:48,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 326 transitions, 2952 flow, removed 8 selfloop flow, removed 13 redundant places. [2025-03-14 01:36:48,162 INFO L231 Difference]: Finished difference. Result has 213 places, 317 transitions, 2815 flow [2025-03-14 01:36:48,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2815, PETRI_PLACES=213, PETRI_TRANSITIONS=317} [2025-03-14 01:36:48,163 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 99 predicate places. [2025-03-14 01:36:48,163 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 317 transitions, 2815 flow [2025-03-14 01:36:48,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:48,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:48,163 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] [2025-03-14 01:36:48,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2025-03-14 01:36:48,163 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:48,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:48,164 INFO L85 PathProgramCache]: Analyzing trace with hash -893314078, now seen corresponding path program 27 times [2025-03-14 01:36:48,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:48,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350675663] [2025-03-14 01:36:48,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:48,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:48,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:48,173 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:48,173 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:48,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:48,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:48,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350675663] [2025-03-14 01:36:48,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350675663] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:48,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:48,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:48,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565639726] [2025-03-14 01:36:48,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:48,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:48,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:48,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:48,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:48,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:48,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 317 transitions, 2815 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:48,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:48,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:48,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:49,073 INFO L124 PetriNetUnfolderBase]: 555/1985 cut-off events. [2025-03-14 01:36:49,073 INFO L125 PetriNetUnfolderBase]: For 6240/6354 co-relation queries the response was YES. [2025-03-14 01:36:49,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7062 conditions, 1985 events. 555/1985 cut-off events. For 6240/6354 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15446 event pairs, 21 based on Foata normal form. 24/2005 useless extension candidates. Maximal degree in co-relation 7011. Up to 364 conditions per place. [2025-03-14 01:36:49,080 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 13 selfloop transitions, 30 changer transitions 6/323 dead transitions. [2025-03-14 01:36:49,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 323 transitions, 2975 flow [2025-03-14 01:36:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2025-03-14 01:36:49,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7636867636867637 [2025-03-14 01:36:49,081 INFO L175 Difference]: Start difference. First operand has 213 places, 317 transitions, 2815 flow. Second operand 13 states and 1102 transitions. [2025-03-14 01:36:49,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 323 transitions, 2975 flow [2025-03-14 01:36:49,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 323 transitions, 2862 flow, removed 14 selfloop flow, removed 15 redundant places. [2025-03-14 01:36:49,099 INFO L231 Difference]: Finished difference. Result has 206 places, 314 transitions, 2767 flow [2025-03-14 01:36:49,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2722, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2767, PETRI_PLACES=206, PETRI_TRANSITIONS=314} [2025-03-14 01:36:49,100 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 92 predicate places. [2025-03-14 01:36:49,100 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 314 transitions, 2767 flow [2025-03-14 01:36:49,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:49,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:49,100 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] [2025-03-14 01:36:49,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2025-03-14 01:36:49,100 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:49,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash 711283814, now seen corresponding path program 28 times [2025-03-14 01:36:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87100441] [2025-03-14 01:36:49,101 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:49,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:49,107 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:49,110 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-14 01:36:49,110 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:49,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:49,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87100441] [2025-03-14 01:36:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87100441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:49,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:49,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-14 01:36:49,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153813619] [2025-03-14 01:36:49,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:49,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 01:36:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:49,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 01:36:49,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-03-14 01:36:49,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-03-14 01:36:49,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 314 transitions, 2767 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:49,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:49,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-03-14 01:36:49,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:50,406 INFO L124 PetriNetUnfolderBase]: 750/2393 cut-off events. [2025-03-14 01:36:50,407 INFO L125 PetriNetUnfolderBase]: For 10385/10670 co-relation queries the response was YES. [2025-03-14 01:36:50,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9753 conditions, 2393 events. 750/2393 cut-off events. For 10385/10670 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 18560 event pairs, 57 based on Foata normal form. 70/2451 useless extension candidates. Maximal degree in co-relation 9705. Up to 522 conditions per place. [2025-03-14 01:36:50,418 INFO L140 encePairwiseOnDemand]: 88/111 looper letters, 331 selfloop transitions, 92 changer transitions 36/551 dead transitions. [2025-03-14 01:36:50,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 551 transitions, 5887 flow [2025-03-14 01:36:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-14 01:36:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-14 01:36:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1524 transitions. [2025-03-14 01:36:50,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7226173541963016 [2025-03-14 01:36:50,419 INFO L175 Difference]: Start difference. First operand has 206 places, 314 transitions, 2767 flow. Second operand 19 states and 1524 transitions. [2025-03-14 01:36:50,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 551 transitions, 5887 flow [2025-03-14 01:36:50,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 551 transitions, 5780 flow, removed 4 selfloop flow, removed 13 redundant places. [2025-03-14 01:36:50,445 INFO L231 Difference]: Finished difference. Result has 217 places, 344 transitions, 3314 flow [2025-03-14 01:36:50,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3314, PETRI_PLACES=217, PETRI_TRANSITIONS=344} [2025-03-14 01:36:50,446 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 103 predicate places. [2025-03-14 01:36:50,446 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 344 transitions, 3314 flow [2025-03-14 01:36:50,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-03-14 01:36:50,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:50,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:50,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2025-03-14 01:36:50,446 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:50,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:50,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1705359603, now seen corresponding path program 26 times [2025-03-14 01:36:50,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:50,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565995846] [2025-03-14 01:36:50,448 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:50,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:50,454 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:50,457 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:50,457 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:50,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:50,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:50,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565995846] [2025-03-14 01:36:50,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565995846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:50,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:50,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:50,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452244417] [2025-03-14 01:36:50,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:50,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:50,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:50,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:50,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:50,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:50,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 344 transitions, 3314 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:50,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:50,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:50,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:51,172 INFO L124 PetriNetUnfolderBase]: 288/1134 cut-off events. [2025-03-14 01:36:51,172 INFO L125 PetriNetUnfolderBase]: For 4125/4170 co-relation queries the response was YES. [2025-03-14 01:36:51,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4169 conditions, 1134 events. 288/1134 cut-off events. For 4125/4170 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7505 event pairs, 9 based on Foata normal form. 10/1142 useless extension candidates. Maximal degree in co-relation 4115. Up to 193 conditions per place. [2025-03-14 01:36:51,176 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 14 selfloop transitions, 20 changer transitions 6/285 dead transitions. [2025-03-14 01:36:51,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 285 transitions, 2510 flow [2025-03-14 01:36:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1100 transitions. [2025-03-14 01:36:51,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7623007623007623 [2025-03-14 01:36:51,177 INFO L175 Difference]: Start difference. First operand has 217 places, 344 transitions, 3314 flow. Second operand 13 states and 1100 transitions. [2025-03-14 01:36:51,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 285 transitions, 2510 flow [2025-03-14 01:36:51,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 285 transitions, 2313 flow, removed 46 selfloop flow, removed 24 redundant places. [2025-03-14 01:36:51,192 INFO L231 Difference]: Finished difference. Result has 198 places, 279 transitions, 2235 flow [2025-03-14 01:36:51,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2235, PETRI_PLACES=198, PETRI_TRANSITIONS=279} [2025-03-14 01:36:51,193 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 84 predicate places. [2025-03-14 01:36:51,193 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 279 transitions, 2235 flow [2025-03-14 01:36:51,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:51,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:51,193 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] [2025-03-14 01:36:51,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2025-03-14 01:36:51,193 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-03-14 01:36:51,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash 489685037, now seen corresponding path program 27 times [2025-03-14 01:36:51,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:51,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860613885] [2025-03-14 01:36:51,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:51,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:51,203 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-03-14 01:36:51,207 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-03-14 01:36:51,207 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:51,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:51,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860613885] [2025-03-14 01:36:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860613885] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106556942] [2025-03-14 01:36:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:51,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:36:51,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:51,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:36:51,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:36:51,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-03-14 01:36:51,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 279 transitions, 2235 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:51,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:51,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-03-14 01:36:51,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:51,890 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2025-03-14 01:36:51,890 INFO L125 PetriNetUnfolderBase]: For 71/72 co-relation queries the response was YES. [2025-03-14 01:36:51,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 75 events. 2/75 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 5/80 useless extension candidates. Maximal degree in co-relation 178. Up to 7 conditions per place. [2025-03-14 01:36:51,890 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-03-14 01:36:51,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 71 transitions, 333 flow [2025-03-14 01:36:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:36:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:36:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1088 transitions. [2025-03-14 01:36:51,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.753984753984754 [2025-03-14 01:36:51,891 INFO L175 Difference]: Start difference. First operand has 198 places, 279 transitions, 2235 flow. Second operand 13 states and 1088 transitions. [2025-03-14 01:36:51,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 71 transitions, 333 flow [2025-03-14 01:36:51,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 71 transitions, 203 flow, removed 19 selfloop flow, removed 42 redundant places. [2025-03-14 01:36:51,892 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2025-03-14 01:36:51,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2025-03-14 01:36:51,893 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, -5 predicate places. [2025-03-14 01:36:51,893 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2025-03-14 01:36:51,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-03-14 01:36:51,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-03-14 01:36:51,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-03-14 01:36:51,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2025-03-14 01:36:51,897 INFO L422 BasicCegarLoop]: Path program histogram: [28, 27, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:51,900 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:36:51,900 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:36:51,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:36:51 BasicIcfg [2025-03-14 01:36:51,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:36:51,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:36:51,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:36:51,904 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:36:51,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:35" (3/4) ... [2025-03-14 01:36:51,905 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 01:36:51,907 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-14 01:36:51,910 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-14 01:36:51,910 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 01:36:51,910 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-14 01:36:51,962 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:36:51,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:36:51,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:36:51,963 INFO L158 Benchmark]: Toolchain (without parser) took 77412.28ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 104.1MB in the beginning and 472.1MB in the end (delta: -368.0MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2025-03-14 01:36:51,964 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:36:51,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.80ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 81.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:36:51,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 78.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:36:51,965 INFO L158 Benchmark]: Boogie Preprocessor took 16.41ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:36:51,965 INFO L158 Benchmark]: IcfgBuilder took 343.51ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 59.8MB in the end (delta: 17.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:36:51,965 INFO L158 Benchmark]: TraceAbstraction took 76600.14ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 59.0MB in the beginning and 480.5MB in the end (delta: -421.5MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2025-03-14 01:36:51,966 INFO L158 Benchmark]: Witness Printer took 59.18ms. Allocated memory is still 604.0MB. Free memory was 480.5MB in the beginning and 472.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 01:36:51,967 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.80ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 81.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 78.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.41ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 343.51ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 59.8MB in the end (delta: 17.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 76600.14ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 59.0MB in the beginning and 480.5MB in the end (delta: -421.5MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 59.18ms. Allocated memory is still 604.0MB. Free memory was 480.5MB in the beginning and 472.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3010]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3011]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 2995]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3013]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3005]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 76.5s, OverallIterations: 62, TraceHistogramMax: 1, PathProgramHistogramMax: 28, EmptinessCheckTime: 0.0s, AutomataDifference: 60.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31545 SdHoareTripleChecker+Valid, 28.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27367 mSDsluCounter, 119715 SdHoareTripleChecker+Invalid, 23.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117428 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79416 IncrementalHoareTripleChecker+Invalid, 79942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 2287 mSDtfsCounter, 79416 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1320 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2555 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4674occurred in iteration=28, InterpolantAutomatonStates: 789, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 4061 NumberOfCodeBlocks, 4005 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 3999 ConstructedInterpolants, 0 QuantifiedInterpolants, 20692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 62 InterpolantComputations, 62 PerfectInterpolantSequences, 171/171 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 01:36:51,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE