./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:50:59,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:50:59,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:50:59,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:50:59,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:50:59,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:50:59,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:50:59,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:50:59,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:50:59,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:50:59,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:50:59,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:50:59,599 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:50:59,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:50:59,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:50:59,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:50:59,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:50:59,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:50:59,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:50:59,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:50:59,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:50:59,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:50:59,602 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:50:59,602 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:50:59,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:50:59,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:50:59,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:50:59,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:50:59,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:50:59,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:50:59,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:50:59,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:50:59,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:50:59,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:50:59,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:50:59,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:50:59,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:50:59,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:50:59,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:50:59,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:50:59,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:50:59,607 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-10-13 09:50:59,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:50:59,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:50:59,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:50:59,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:50:59,844 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:50:59,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-13 09:51:01,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:51:01,447 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:51:01,448 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-13 09:51:01,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8694a4bf/8809ccdf8e9c4ccc9b5ae5f2857996f8/FLAG4593e3ff1 [2024-10-13 09:51:01,479 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8694a4bf/8809ccdf8e9c4ccc9b5ae5f2857996f8 [2024-10-13 09:51:01,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:51:01,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:51:01,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:01,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:51:01,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:51:01,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:01" (1/1) ... [2024-10-13 09:51:01,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89e023d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:01, skipping insertion in model container [2024-10-13 09:51:01,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:01" (1/1) ... [2024-10-13 09:51:01,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:51:01,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:02,026 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:51:02,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:02,127 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:51:02,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02 WrapperNode [2024-10-13 09:51:02,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:02,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:02,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:51:02,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:51:02,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,218 INFO L138 Inliner]: procedures = 368, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 234 [2024-10-13 09:51:02,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:02,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:51:02,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:51:02,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:51:02,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:51:02,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:51:02,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:51:02,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:51:02,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (1/1) ... [2024-10-13 09:51:02,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:02,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:02,321 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) [2024-10-13 09:51:02,327 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 [2024-10-13 09:51:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:51:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:51:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:51:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:51:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:51:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:51:02,404 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:51:02,547 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:51:02,549 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:51:02,987 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:51:02,987 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:51:03,017 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:51:03,017 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 09:51:03,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:03 BoogieIcfgContainer [2024-10-13 09:51:03,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:51:03,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:51:03,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:51:03,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:51:03,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:51:01" (1/3) ... [2024-10-13 09:51:03,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddc8dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:03, skipping insertion in model container [2024-10-13 09:51:03,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:02" (2/3) ... [2024-10-13 09:51:03,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddc8dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:03, skipping insertion in model container [2024-10-13 09:51:03,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:03" (3/3) ... [2024-10-13 09:51:03,031 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-10-13 09:51:03,057 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:51:03,058 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 09:51:03,058 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:51:03,141 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:51:03,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 266 transitions, 536 flow [2024-10-13 09:51:03,330 INFO L124 PetriNetUnfolderBase]: 6/265 cut-off events. [2024-10-13 09:51:03,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:03,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 265 events. 6/265 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 417 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-10-13 09:51:03,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 266 transitions, 536 flow [2024-10-13 09:51:03,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 265 transitions, 533 flow [2024-10-13 09:51:03,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:51:03,356 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;@15ff7dd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:51:03,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-13 09:51:03,410 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:51:03,411 INFO L124 PetriNetUnfolderBase]: 3/65 cut-off events. [2024-10-13 09:51:03,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:03,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:03,418 INFO L204 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] [2024-10-13 09:51:03,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:03,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash -154833977, now seen corresponding path program 1 times [2024-10-13 09:51:03,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:03,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995707733] [2024-10-13 09:51:03,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:04,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:04,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995707733] [2024-10-13 09:51:04,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995707733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:04,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:04,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:04,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624538460] [2024-10-13 09:51:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:04,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:04,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:04,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:04,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:04,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 266 [2024-10-13 09:51:04,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 265 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 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) [2024-10-13 09:51:04,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:04,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 266 [2024-10-13 09:51:04,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:05,332 INFO L124 PetriNetUnfolderBase]: 1265/4858 cut-off events. [2024-10-13 09:51:05,332 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:05,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7402 conditions, 4858 events. 1265/4858 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36286 event pairs, 912 based on Foata normal form. 137/4585 useless extension candidates. Maximal degree in co-relation 7320. Up to 2359 conditions per place. [2024-10-13 09:51:05,423 INFO L140 encePairwiseOnDemand]: 226/266 looper letters, 84 selfloop transitions, 107 changer transitions 0/370 dead transitions. [2024-10-13 09:51:05,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 370 transitions, 1125 flow [2024-10-13 09:51:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1280 transitions. [2024-10-13 09:51:05,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8020050125313283 [2024-10-13 09:51:05,440 INFO L175 Difference]: Start difference. First operand has 263 places, 265 transitions, 533 flow. Second operand 6 states and 1280 transitions. [2024-10-13 09:51:05,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 370 transitions, 1125 flow [2024-10-13 09:51:05,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 370 transitions, 1124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:05,452 INFO L231 Difference]: Finished difference. Result has 271 places, 362 transitions, 1214 flow [2024-10-13 09:51:05,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1214, PETRI_PLACES=271, PETRI_TRANSITIONS=362} [2024-10-13 09:51:05,457 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 8 predicate places. [2024-10-13 09:51:05,457 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 362 transitions, 1214 flow [2024-10-13 09:51:05,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 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) [2024-10-13 09:51:05,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:05,458 INFO L204 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] [2024-10-13 09:51:05,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:51:05,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:05,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2011066990, now seen corresponding path program 1 times [2024-10-13 09:51:05,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:05,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406972885] [2024-10-13 09:51:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:05,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406972885] [2024-10-13 09:51:05,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406972885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:05,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:05,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:05,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110209747] [2024-10-13 09:51:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:05,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:05,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:06,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 266 [2024-10-13 09:51:06,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 362 transitions, 1214 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 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) [2024-10-13 09:51:06,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:06,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 266 [2024-10-13 09:51:06,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:06,928 INFO L124 PetriNetUnfolderBase]: 1531/5742 cut-off events. [2024-10-13 09:51:06,928 INFO L125 PetriNetUnfolderBase]: For 1214/1217 co-relation queries the response was YES. [2024-10-13 09:51:06,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10534 conditions, 5742 events. 1531/5742 cut-off events. For 1214/1217 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44112 event pairs, 936 based on Foata normal form. 0/5299 useless extension candidates. Maximal degree in co-relation 10439. Up to 2637 conditions per place. [2024-10-13 09:51:06,959 INFO L140 encePairwiseOnDemand]: 229/266 looper letters, 180 selfloop transitions, 107 changer transitions 0/470 dead transitions. [2024-10-13 09:51:06,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 470 transitions, 2196 flow [2024-10-13 09:51:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:06,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2024-10-13 09:51:06,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2024-10-13 09:51:06,962 INFO L175 Difference]: Start difference. First operand has 271 places, 362 transitions, 1214 flow. Second operand 6 states and 1273 transitions. [2024-10-13 09:51:06,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 470 transitions, 2196 flow [2024-10-13 09:51:06,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 470 transitions, 2196 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:06,979 INFO L231 Difference]: Finished difference. Result has 280 places, 462 transitions, 2094 flow [2024-10-13 09:51:06,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=280, PETRI_TRANSITIONS=462} [2024-10-13 09:51:06,981 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 17 predicate places. [2024-10-13 09:51:06,981 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 462 transitions, 2094 flow [2024-10-13 09:51:06,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 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) [2024-10-13 09:51:06,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:06,982 INFO L204 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] [2024-10-13 09:51:06,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:51:06,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:06,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:06,983 INFO L85 PathProgramCache]: Analyzing trace with hash -34583309, now seen corresponding path program 1 times [2024-10-13 09:51:06,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:06,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840590511] [2024-10-13 09:51:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:07,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:07,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840590511] [2024-10-13 09:51:07,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840590511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:07,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:07,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:07,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13698796] [2024-10-13 09:51:07,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:07,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:07,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:07,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 266 [2024-10-13 09:51:07,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 462 transitions, 2094 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:07,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:07,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 266 [2024-10-13 09:51:07,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:07,507 INFO L124 PetriNetUnfolderBase]: 1081/4368 cut-off events. [2024-10-13 09:51:07,507 INFO L125 PetriNetUnfolderBase]: For 1114/1120 co-relation queries the response was YES. [2024-10-13 09:51:07,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8778 conditions, 4368 events. 1081/4368 cut-off events. For 1114/1120 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28457 event pairs, 108 based on Foata normal form. 4/4126 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-10-13 09:51:07,601 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 16 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2024-10-13 09:51:07,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 468 transitions, 2146 flow [2024-10-13 09:51:07,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:07,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2024-10-13 09:51:07,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9636591478696742 [2024-10-13 09:51:07,603 INFO L175 Difference]: Start difference. First operand has 280 places, 462 transitions, 2094 flow. Second operand 3 states and 769 transitions. [2024-10-13 09:51:07,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 468 transitions, 2146 flow [2024-10-13 09:51:07,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 468 transitions, 1954 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:07,616 INFO L231 Difference]: Finished difference. Result has 283 places, 464 transitions, 1926 flow [2024-10-13 09:51:07,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1902, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1926, PETRI_PLACES=283, PETRI_TRANSITIONS=464} [2024-10-13 09:51:07,617 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 20 predicate places. [2024-10-13 09:51:07,617 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 464 transitions, 1926 flow [2024-10-13 09:51:07,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:07,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:07,618 INFO L204 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] [2024-10-13 09:51:07,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:51:07,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:07,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:07,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1115785085, now seen corresponding path program 1 times [2024-10-13 09:51:07,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:07,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996425887] [2024-10-13 09:51:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:07,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:07,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996425887] [2024-10-13 09:51:07,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996425887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:07,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:07,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:07,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550068078] [2024-10-13 09:51:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:07,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:07,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:08,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 266 [2024-10-13 09:51:08,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 464 transitions, 1926 flow. Second operand has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:08,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:08,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 266 [2024-10-13 09:51:08,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:10,038 INFO L124 PetriNetUnfolderBase]: 2970/10628 cut-off events. [2024-10-13 09:51:10,038 INFO L125 PetriNetUnfolderBase]: For 6046/6161 co-relation queries the response was YES. [2024-10-13 09:51:10,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23684 conditions, 10628 events. 2970/10628 cut-off events. For 6046/6161 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84584 event pairs, 1872 based on Foata normal form. 0/10087 useless extension candidates. Maximal degree in co-relation 23486. Up to 5591 conditions per place. [2024-10-13 09:51:10,103 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 285 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2024-10-13 09:51:10,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 463 transitions, 2504 flow [2024-10-13 09:51:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1123 transitions. [2024-10-13 09:51:10,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7036340852130326 [2024-10-13 09:51:10,105 INFO L175 Difference]: Start difference. First operand has 283 places, 464 transitions, 1926 flow. Second operand 6 states and 1123 transitions. [2024-10-13 09:51:10,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 463 transitions, 2504 flow [2024-10-13 09:51:10,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 463 transitions, 2500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:10,120 INFO L231 Difference]: Finished difference. Result has 286 places, 463 transitions, 1930 flow [2024-10-13 09:51:10,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1920, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1930, PETRI_PLACES=286, PETRI_TRANSITIONS=463} [2024-10-13 09:51:10,122 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 23 predicate places. [2024-10-13 09:51:10,122 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 463 transitions, 1930 flow [2024-10-13 09:51:10,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:10,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:10,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:10,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:51:10,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:10,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1448263889, now seen corresponding path program 1 times [2024-10-13 09:51:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:10,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604447531] [2024-10-13 09:51:10,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:10,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604447531] [2024-10-13 09:51:10,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604447531] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:10,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635659642] [2024-10-13 09:51:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:10,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:10,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:10,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:10,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:51:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:10,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:51:10,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635659642] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:10,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:10,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:51:10,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345868213] [2024-10-13 09:51:10,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:10,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:51:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:51:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:51:10,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-13 09:51:10,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 463 transitions, 1930 flow. Second operand has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:10,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:10,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-13 09:51:10,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:11,590 INFO L124 PetriNetUnfolderBase]: 1085/4413 cut-off events. [2024-10-13 09:51:11,590 INFO L125 PetriNetUnfolderBase]: For 677/683 co-relation queries the response was YES. [2024-10-13 09:51:11,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8658 conditions, 4413 events. 1085/4413 cut-off events. For 677/683 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 28388 event pairs, 102 based on Foata normal form. 2/4169 useless extension candidates. Maximal degree in co-relation 8420. Up to 898 conditions per place. [2024-10-13 09:51:11,613 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 22 selfloop transitions, 13 changer transitions 0/478 dead transitions. [2024-10-13 09:51:11,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 478 transitions, 2032 flow [2024-10-13 09:51:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:51:11,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:51:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2242 transitions. [2024-10-13 09:51:11,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9365079365079365 [2024-10-13 09:51:11,617 INFO L175 Difference]: Start difference. First operand has 286 places, 463 transitions, 1930 flow. Second operand 9 states and 2242 transitions. [2024-10-13 09:51:11,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 478 transitions, 2032 flow [2024-10-13 09:51:11,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 478 transitions, 2022 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:11,630 INFO L231 Difference]: Finished difference. Result has 292 places, 470 transitions, 1988 flow [2024-10-13 09:51:11,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1920, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1988, PETRI_PLACES=292, PETRI_TRANSITIONS=470} [2024-10-13 09:51:11,631 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 29 predicate places. [2024-10-13 09:51:11,631 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 470 transitions, 1988 flow [2024-10-13 09:51:11,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:11,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:11,633 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:11,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:11,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:11,838 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:11,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash -218334289, now seen corresponding path program 2 times [2024-10-13 09:51:11,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:11,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989621897] [2024-10-13 09:51:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:12,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:12,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989621897] [2024-10-13 09:51:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989621897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:12,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663599656] [2024-10-13 09:51:12,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:12,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:12,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:12,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:12,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:51:12,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:12,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:12,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:51:12,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:12,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:51:12,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 09:51:12,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:12,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 09:51:12,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:12,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 09:51:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-13 09:51:12,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:12,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663599656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:12,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:12,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-13 09:51:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205475381] [2024-10-13 09:51:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:12,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:12,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 266 [2024-10-13 09:51:12,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 470 transitions, 1988 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:12,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:12,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 266 [2024-10-13 09:51:12,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:15,294 INFO L124 PetriNetUnfolderBase]: 3572/12246 cut-off events. [2024-10-13 09:51:15,294 INFO L125 PetriNetUnfolderBase]: For 5298/5380 co-relation queries the response was YES. [2024-10-13 09:51:15,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26760 conditions, 12246 events. 3572/12246 cut-off events. For 5298/5380 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 98020 event pairs, 1616 based on Foata normal form. 0/11490 useless extension candidates. Maximal degree in co-relation 26484. Up to 6064 conditions per place. [2024-10-13 09:51:15,413 INFO L140 encePairwiseOnDemand]: 223/266 looper letters, 245 selfloop transitions, 170 changer transitions 0/639 dead transitions. [2024-10-13 09:51:15,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 639 transitions, 3296 flow [2024-10-13 09:51:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1336 transitions. [2024-10-13 09:51:15,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370927318295739 [2024-10-13 09:51:15,421 INFO L175 Difference]: Start difference. First operand has 292 places, 470 transitions, 1988 flow. Second operand 6 states and 1336 transitions. [2024-10-13 09:51:15,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 639 transitions, 3296 flow [2024-10-13 09:51:15,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 639 transitions, 3286 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:15,445 INFO L231 Difference]: Finished difference. Result has 301 places, 631 transitions, 3228 flow [2024-10-13 09:51:15,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1978, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3228, PETRI_PLACES=301, PETRI_TRANSITIONS=631} [2024-10-13 09:51:15,447 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 38 predicate places. [2024-10-13 09:51:15,447 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 631 transitions, 3228 flow [2024-10-13 09:51:15,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:15,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:15,449 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:15,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:51:15,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 09:51:15,651 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:15,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash -303521228, now seen corresponding path program 1 times [2024-10-13 09:51:15,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:15,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006955337] [2024-10-13 09:51:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:15,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:16,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:16,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006955337] [2024-10-13 09:51:16,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006955337] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174200732] [2024-10-13 09:51:16,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:16,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:16,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:16,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:16,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:51:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:16,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:51:16,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:16,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:17,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174200732] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:17,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:51:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859380172] [2024-10-13 09:51:17,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:17,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:51:17,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:17,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:51:17,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:51:17,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-13 09:51:17,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 631 transitions, 3228 flow. Second operand has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:17,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:17,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-13 09:51:17,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:18,834 INFO L124 PetriNetUnfolderBase]: 1787/6882 cut-off events. [2024-10-13 09:51:18,834 INFO L125 PetriNetUnfolderBase]: For 3086/3189 co-relation queries the response was YES. [2024-10-13 09:51:18,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15997 conditions, 6882 events. 1787/6882 cut-off events. For 3086/3189 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 48178 event pairs, 166 based on Foata normal form. 4/6578 useless extension candidates. Maximal degree in co-relation 15454. Up to 1392 conditions per place. [2024-10-13 09:51:18,880 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 26 selfloop transitions, 25 changer transitions 0/655 dead transitions. [2024-10-13 09:51:18,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 655 transitions, 3430 flow [2024-10-13 09:51:18,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:51:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:51:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5200 transitions. [2024-10-13 09:51:18,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9308986752595775 [2024-10-13 09:51:18,890 INFO L175 Difference]: Start difference. First operand has 301 places, 631 transitions, 3228 flow. Second operand 21 states and 5200 transitions. [2024-10-13 09:51:18,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 655 transitions, 3430 flow [2024-10-13 09:51:18,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 655 transitions, 3394 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:18,929 INFO L231 Difference]: Finished difference. Result has 326 places, 644 transitions, 3336 flow [2024-10-13 09:51:18,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3192, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3336, PETRI_PLACES=326, PETRI_TRANSITIONS=644} [2024-10-13 09:51:18,930 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 63 predicate places. [2024-10-13 09:51:18,930 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 644 transitions, 3336 flow [2024-10-13 09:51:18,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:18,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:18,933 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:18,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:51:19,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:19,137 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:19,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:19,138 INFO L85 PathProgramCache]: Analyzing trace with hash 4700980, now seen corresponding path program 2 times [2024-10-13 09:51:19,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:19,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635133477] [2024-10-13 09:51:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:20,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635133477] [2024-10-13 09:51:20,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635133477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252814886] [2024-10-13 09:51:20,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:20,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:20,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:20,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:20,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:51:20,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:20,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:20,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:51:20,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:20,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 09:51:20,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-13 09:51:20,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:20,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-13 09:51:20,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:20,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-13 09:51:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-10-13 09:51:20,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:20,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252814886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:20,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:20,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:51:20,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488255079] [2024-10-13 09:51:20,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:20,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:20,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:20,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:20,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:51:20,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 266 [2024-10-13 09:51:20,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 644 transitions, 3336 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:20,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:20,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 266 [2024-10-13 09:51:20,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:24,395 INFO L124 PetriNetUnfolderBase]: 4263/14617 cut-off events. [2024-10-13 09:51:24,395 INFO L125 PetriNetUnfolderBase]: For 10432/10581 co-relation queries the response was YES. [2024-10-13 09:51:24,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36948 conditions, 14617 events. 4263/14617 cut-off events. For 10432/10581 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 119277 event pairs, 1677 based on Foata normal form. 0/13817 useless extension candidates. Maximal degree in co-relation 36312. Up to 6897 conditions per place. [2024-10-13 09:51:24,472 INFO L140 encePairwiseOnDemand]: 223/266 looper letters, 395 selfloop transitions, 170 changer transitions 0/813 dead transitions. [2024-10-13 09:51:24,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 813 transitions, 5244 flow [2024-10-13 09:51:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1336 transitions. [2024-10-13 09:51:24,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370927318295739 [2024-10-13 09:51:24,476 INFO L175 Difference]: Start difference. First operand has 326 places, 644 transitions, 3336 flow. Second operand 6 states and 1336 transitions. [2024-10-13 09:51:24,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 813 transitions, 5244 flow [2024-10-13 09:51:24,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 813 transitions, 5218 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:24,518 INFO L231 Difference]: Finished difference. Result has 330 places, 805 transitions, 4860 flow [2024-10-13 09:51:24,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3310, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4860, PETRI_PLACES=330, PETRI_TRANSITIONS=805} [2024-10-13 09:51:24,520 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 67 predicate places. [2024-10-13 09:51:24,520 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 805 transitions, 4860 flow [2024-10-13 09:51:24,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:24,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:24,521 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:24,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:51:24,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:24,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:24,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1236477007, now seen corresponding path program 1 times [2024-10-13 09:51:24,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:24,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718274500] [2024-10-13 09:51:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:24,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:25,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718274500] [2024-10-13 09:51:25,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718274500] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:25,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578221841] [2024-10-13 09:51:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:25,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:25,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:25,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:25,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:51:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:25,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:51:25,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:26,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:26,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578221841] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:26,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:26,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:51:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748087638] [2024-10-13 09:51:26,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:51:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:51:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:51:26,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 266 [2024-10-13 09:51:26,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 805 transitions, 4860 flow. Second operand has 23 states, 23 states have (on average 247.2173913043478) internal successors, (5686), 23 states have internal predecessors, (5686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:26,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:26,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 266 [2024-10-13 09:51:26,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:29,320 INFO L124 PetriNetUnfolderBase]: 2478/9313 cut-off events. [2024-10-13 09:51:29,320 INFO L125 PetriNetUnfolderBase]: For 7346/7496 co-relation queries the response was YES. [2024-10-13 09:51:29,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24502 conditions, 9313 events. 2478/9313 cut-off events. For 7346/7496 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 68886 event pairs, 229 based on Foata normal form. 3/8942 useless extension candidates. Maximal degree in co-relation 23696. Up to 2110 conditions per place. [2024-10-13 09:51:29,382 INFO L140 encePairwiseOnDemand]: 257/266 looper letters, 29 selfloop transitions, 34 changer transitions 0/828 dead transitions. [2024-10-13 09:51:29,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 828 transitions, 5120 flow [2024-10-13 09:51:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:51:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:51:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7416 transitions. [2024-10-13 09:51:29,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293233082706767 [2024-10-13 09:51:29,393 INFO L175 Difference]: Start difference. First operand has 330 places, 805 transitions, 4860 flow. Second operand 30 states and 7416 transitions. [2024-10-13 09:51:29,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 828 transitions, 5120 flow [2024-10-13 09:51:29,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 828 transitions, 4784 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:29,461 INFO L231 Difference]: Finished difference. Result has 363 places, 815 transitions, 4690 flow [2024-10-13 09:51:29,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4524, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=778, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4690, PETRI_PLACES=363, PETRI_TRANSITIONS=815} [2024-10-13 09:51:29,462 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 100 predicate places. [2024-10-13 09:51:29,462 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 815 transitions, 4690 flow [2024-10-13 09:51:29,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 247.2173913043478) internal successors, (5686), 23 states have internal predecessors, (5686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:29,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:29,464 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:29,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:51:29,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:29,669 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:29,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1283058871, now seen corresponding path program 2 times [2024-10-13 09:51:29,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:29,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502559477] [2024-10-13 09:51:29,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:29,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-13 09:51:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502559477] [2024-10-13 09:51:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502559477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 09:51:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756375175] [2024-10-13 09:51:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:31,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 09:51:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 09:51:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-13 09:51:32,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-13 09:51:32,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 815 transitions, 4690 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:32,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:32,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-13 09:51:32,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:37,628 INFO L124 PetriNetUnfolderBase]: 4877/16010 cut-off events. [2024-10-13 09:51:37,629 INFO L125 PetriNetUnfolderBase]: For 17242/17685 co-relation queries the response was YES. [2024-10-13 09:51:37,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46619 conditions, 16010 events. 4877/16010 cut-off events. For 17242/17685 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 129174 event pairs, 1704 based on Foata normal form. 20/15308 useless extension candidates. Maximal degree in co-relation 45651. Up to 5419 conditions per place. [2024-10-13 09:51:37,748 INFO L140 encePairwiseOnDemand]: 218/266 looper letters, 591 selfloop transitions, 145 changer transitions 0/983 dead transitions. [2024-10-13 09:51:37,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 983 transitions, 7144 flow [2024-10-13 09:51:37,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 09:51:37,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 09:51:37,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2384 transitions. [2024-10-13 09:51:37,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468671679197995 [2024-10-13 09:51:37,752 INFO L175 Difference]: Start difference. First operand has 363 places, 815 transitions, 4690 flow. Second operand 12 states and 2384 transitions. [2024-10-13 09:51:37,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 983 transitions, 7144 flow [2024-10-13 09:51:37,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 983 transitions, 7096 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:51:37,968 INFO L231 Difference]: Finished difference. Result has 361 places, 834 transitions, 5268 flow [2024-10-13 09:51:37,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4642, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5268, PETRI_PLACES=361, PETRI_TRANSITIONS=834} [2024-10-13 09:51:37,970 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 98 predicate places. [2024-10-13 09:51:37,970 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 834 transitions, 5268 flow [2024-10-13 09:51:37,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:37,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:37,971 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:37,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:51:37,971 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:37,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash -418414245, now seen corresponding path program 3 times [2024-10-13 09:51:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:37,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881019394] [2024-10-13 09:51:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-13 09:51:39,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:39,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881019394] [2024-10-13 09:51:39,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881019394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:39,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:39,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 09:51:39,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151996704] [2024-10-13 09:51:39,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:39,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 09:51:39,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:39,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 09:51:39,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-13 09:51:40,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-13 09:51:40,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 834 transitions, 5268 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:40,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:40,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-13 09:51:40,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:46,361 INFO L124 PetriNetUnfolderBase]: 5770/18200 cut-off events. [2024-10-13 09:51:46,361 INFO L125 PetriNetUnfolderBase]: For 24453/24623 co-relation queries the response was YES. [2024-10-13 09:51:46,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57739 conditions, 18200 events. 5770/18200 cut-off events. For 24453/24623 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 148331 event pairs, 1608 based on Foata normal form. 82/17605 useless extension candidates. Maximal degree in co-relation 56668. Up to 4534 conditions per place. [2024-10-13 09:51:46,493 INFO L140 encePairwiseOnDemand]: 225/266 looper letters, 868 selfloop transitions, 148 changer transitions 0/1263 dead transitions. [2024-10-13 09:51:46,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1263 transitions, 10718 flow [2024-10-13 09:51:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 09:51:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 09:51:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4281 transitions. [2024-10-13 09:51:46,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6997384766263485 [2024-10-13 09:51:46,499 INFO L175 Difference]: Start difference. First operand has 361 places, 834 transitions, 5268 flow. Second operand 23 states and 4281 transitions. [2024-10-13 09:51:46,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1263 transitions, 10718 flow [2024-10-13 09:51:46,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 1263 transitions, 10504 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:46,762 INFO L231 Difference]: Finished difference. Result has 394 places, 963 transitions, 6932 flow [2024-10-13 09:51:46,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5152, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=834, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6932, PETRI_PLACES=394, PETRI_TRANSITIONS=963} [2024-10-13 09:51:46,764 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 131 predicate places. [2024-10-13 09:51:46,764 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 963 transitions, 6932 flow [2024-10-13 09:51:46,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:46,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:46,765 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:46,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:51:46,766 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:46,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1989277401, now seen corresponding path program 4 times [2024-10-13 09:51:46,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:46,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420122515] [2024-10-13 09:51:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-13 09:51:48,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420122515] [2024-10-13 09:51:48,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420122515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:48,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:48,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 09:51:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855831039] [2024-10-13 09:51:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:48,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 09:51:48,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:48,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 09:51:48,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 09:51:49,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-13 09:51:49,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 963 transitions, 6932 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:49,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:49,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-13 09:51:49,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:56,414 INFO L124 PetriNetUnfolderBase]: 5852/18445 cut-off events. [2024-10-13 09:51:56,414 INFO L125 PetriNetUnfolderBase]: For 34087/34541 co-relation queries the response was YES. [2024-10-13 09:51:56,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62738 conditions, 18445 events. 5852/18445 cut-off events. For 34087/34541 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 150620 event pairs, 1708 based on Foata normal form. 50/17763 useless extension candidates. Maximal degree in co-relation 61680. Up to 5461 conditions per place. [2024-10-13 09:51:56,565 INFO L140 encePairwiseOnDemand]: 218/266 looper letters, 661 selfloop transitions, 237 changer transitions 0/1145 dead transitions. [2024-10-13 09:51:56,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1145 transitions, 10129 flow [2024-10-13 09:51:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 09:51:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 09:51:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2559 transitions. [2024-10-13 09:51:56,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7400231347599768 [2024-10-13 09:51:56,567 INFO L175 Difference]: Start difference. First operand has 394 places, 963 transitions, 6932 flow. Second operand 13 states and 2559 transitions. [2024-10-13 09:51:56,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1145 transitions, 10129 flow [2024-10-13 09:51:56,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1145 transitions, 10017 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-13 09:51:56,954 INFO L231 Difference]: Finished difference. Result has 411 places, 992 transitions, 8093 flow [2024-10-13 09:51:56,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=6866, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8093, PETRI_PLACES=411, PETRI_TRANSITIONS=992} [2024-10-13 09:51:56,958 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 148 predicate places. [2024-10-13 09:51:56,958 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 992 transitions, 8093 flow [2024-10-13 09:51:56,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:56,960 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:56,960 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:56,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:51:56,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:56,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash -419870181, now seen corresponding path program 5 times [2024-10-13 09:51:56,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:56,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806987628] [2024-10-13 09:51:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:56,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-10-13 09:51:58,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:58,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806987628] [2024-10-13 09:51:58,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806987628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:58,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 09:51:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674403712] [2024-10-13 09:51:58,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:58,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 09:51:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 09:51:58,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-13 09:51:59,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 266 [2024-10-13 09:51:59,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 992 transitions, 8093 flow. Second operand has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:59,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:59,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 266 [2024-10-13 09:51:59,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:06,808 INFO L124 PetriNetUnfolderBase]: 6730/20539 cut-off events. [2024-10-13 09:52:06,809 INFO L125 PetriNetUnfolderBase]: For 52925/53577 co-relation queries the response was YES. [2024-10-13 09:52:06,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76509 conditions, 20539 events. 6730/20539 cut-off events. For 52925/53577 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 170284 event pairs, 2045 based on Foata normal form. 98/19865 useless extension candidates. Maximal degree in co-relation 75313. Up to 9355 conditions per place. [2024-10-13 09:52:07,045 INFO L140 encePairwiseOnDemand]: 225/266 looper letters, 860 selfloop transitions, 197 changer transitions 0/1304 dead transitions. [2024-10-13 09:52:07,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1304 transitions, 13548 flow [2024-10-13 09:52:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 09:52:07,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-13 09:52:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3686 transitions. [2024-10-13 09:52:07,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6928571428571428 [2024-10-13 09:52:07,048 INFO L175 Difference]: Start difference. First operand has 411 places, 992 transitions, 8093 flow. Second operand 20 states and 3686 transitions. [2024-10-13 09:52:07,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1304 transitions, 13548 flow [2024-10-13 09:52:07,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1304 transitions, 13260 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-10-13 09:52:07,317 INFO L231 Difference]: Finished difference. Result has 439 places, 1104 transitions, 10294 flow [2024-10-13 09:52:07,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=7904, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=823, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10294, PETRI_PLACES=439, PETRI_TRANSITIONS=1104} [2024-10-13 09:52:07,319 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, 176 predicate places. [2024-10-13 09:52:07,319 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 1104 transitions, 10294 flow [2024-10-13 09:52:07,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 174.0909090909091) internal successors, (1915), 11 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:07,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:07,320 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:07,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:52:07,320 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:07,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:07,320 INFO L85 PathProgramCache]: Analyzing trace with hash 582654843, now seen corresponding path program 6 times [2024-10-13 09:52:07,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:07,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095170215] [2024-10-13 09:52:07,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:07,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat