./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/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/28-race_reach_94-alloc_region_racing.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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:29:32,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:29:32,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:29:32,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:29:32,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:29:32,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:29:32,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:29:32,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:29:32,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:29:32,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:29:32,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:29:32,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:29:32,312 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:29:32,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:29:32,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:29:32,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:29:32,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:29:32,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:29:32,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:29:32,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:29:32,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:29:32,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:29:32,317 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:29:32,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:29:32,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:29:32,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:29:32,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:29:32,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:29:32,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:29:32,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:29:32,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-10-24 15:29:32,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:29:32,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:29:32,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:29:32,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:29:32,554 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:29:32,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-10-24 15:29:33,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:29:34,135 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:29:34,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-10-24 15:29:34,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c03e493/450e12abdb3d4e618f6450a997cbba06/FLAGc1ceaac3a [2024-10-24 15:29:34,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c03e493/450e12abdb3d4e618f6450a997cbba06 [2024-10-24 15:29:34,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:29:34,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:29:34,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:29:34,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:29:34,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:29:34,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:29:34" (1/1) ... [2024-10-24 15:29:34,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbe18d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:34, skipping insertion in model container [2024-10-24 15:29:34,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:29:34" (1/1) ... [2024-10-24 15:29:34,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:29:35,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:29:35,074 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:29:35,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:29:35,196 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:29:35,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35 WrapperNode [2024-10-24 15:29:35,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:29:35,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:29:35,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:29:35,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:29:35,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,272 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 446 [2024-10-24 15:29:35,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:29:35,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:29:35,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:29:35,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:29:35,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:29:35,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:29:35,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:29:35,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:29:35,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (1/1) ... [2024-10-24 15:29:35,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:29:35,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:35,425 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) [2024-10-24 15:29:35,428 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 [2024-10-24 15:29:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:29:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:29:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:29:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:29:35,475 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:29:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:29:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:29:35,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:29:35,478 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:29:35,644 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:29:35,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:29:36,410 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:29:36,410 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:29:36,457 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:29:36,457 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-24 15:29:36,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:29:36 BoogieIcfgContainer [2024-10-24 15:29:36,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:29:36,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:29:36,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:29:36,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:29:36,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:29:34" (1/3) ... [2024-10-24 15:29:36,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d4797d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:29:36, skipping insertion in model container [2024-10-24 15:29:36,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:35" (2/3) ... [2024-10-24 15:29:36,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d4797d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:29:36, skipping insertion in model container [2024-10-24 15:29:36,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:29:36" (3/3) ... [2024-10-24 15:29:36,467 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-10-24 15:29:36,480 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:29:36,481 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-10-24 15:29:36,481 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:29:36,640 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:29:36,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 472 transitions, 951 flow [2024-10-24 15:29:36,879 INFO L124 PetriNetUnfolderBase]: 48/694 cut-off events. [2024-10-24 15:29:36,879 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:29:36,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 694 events. 48/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2342 event pairs, 0 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 388. Up to 8 conditions per place. [2024-10-24 15:29:36,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 472 transitions, 951 flow [2024-10-24 15:29:36,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 472 transitions, 951 flow [2024-10-24 15:29:36,912 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:29:36,918 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;@9ffb180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:29:36,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-10-24 15:29:36,924 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:29:36,924 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-10-24 15:29:36,924 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:29:36,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:36,925 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] [2024-10-24 15:29:36,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:36,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1498853862, now seen corresponding path program 1 times [2024-10-24 15:29:36,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:36,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463397081] [2024-10-24 15:29:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463397081] [2024-10-24 15:29:37,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463397081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:37,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:37,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749431242] [2024-10-24 15:29:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:37,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:37,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:37,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:38,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 472 [2024-10-24 15:29:38,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 472 transitions, 951 flow. Second operand has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:38,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:38,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 472 [2024-10-24 15:29:38,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:40,690 INFO L124 PetriNetUnfolderBase]: 3778/14457 cut-off events. [2024-10-24 15:29:40,690 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:29:40,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21947 conditions, 14457 events. 3778/14457 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 135611 event pairs, 3600 based on Foata normal form. 1282/14603 useless extension candidates. Maximal degree in co-relation 21556. Up to 7480 conditions per place. [2024-10-24 15:29:40,759 INFO L140 encePairwiseOnDemand]: 439/472 looper letters, 141 selfloop transitions, 5 changer transitions 0/440 dead transitions. [2024-10-24 15:29:40,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 440 transitions, 1179 flow [2024-10-24 15:29:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1950 transitions. [2024-10-24 15:29:40,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6885593220338984 [2024-10-24 15:29:40,776 INFO L175 Difference]: Start difference. First operand has 444 places, 472 transitions, 951 flow. Second operand 6 states and 1950 transitions. [2024-10-24 15:29:40,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 440 transitions, 1179 flow [2024-10-24 15:29:40,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 440 transitions, 1179 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:29:40,795 INFO L231 Difference]: Finished difference. Result has 444 places, 440 transitions, 897 flow [2024-10-24 15:29:40,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=897, PETRI_PLACES=444, PETRI_TRANSITIONS=440} [2024-10-24 15:29:40,803 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-10-24 15:29:40,803 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 440 transitions, 897 flow [2024-10-24 15:29:40,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:40,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:40,805 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] [2024-10-24 15:29:40,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:29:40,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:40,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:40,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1333600576, now seen corresponding path program 1 times [2024-10-24 15:29:40,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:40,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804048963] [2024-10-24 15:29:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:40,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804048963] [2024-10-24 15:29:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804048963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:41,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444728105] [2024-10-24 15:29:41,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:41,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:41,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:41,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:41,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:41,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 472 [2024-10-24 15:29:41,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 440 transitions, 897 flow. Second operand has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:41,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:41,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 472 [2024-10-24 15:29:41,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:43,987 INFO L124 PetriNetUnfolderBase]: 1984/12446 cut-off events. [2024-10-24 15:29:43,987 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 15:29:44,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16321 conditions, 12446 events. 1984/12446 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 123196 event pairs, 1166 based on Foata normal form. 0/11278 useless extension candidates. Maximal degree in co-relation 16263. Up to 3409 conditions per place. [2024-10-24 15:29:44,036 INFO L140 encePairwiseOnDemand]: 435/472 looper letters, 138 selfloop transitions, 107 changer transitions 0/585 dead transitions. [2024-10-24 15:29:44,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 585 transitions, 1680 flow [2024-10-24 15:29:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2305 transitions. [2024-10-24 15:29:44,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.813912429378531 [2024-10-24 15:29:44,044 INFO L175 Difference]: Start difference. First operand has 444 places, 440 transitions, 897 flow. Second operand 6 states and 2305 transitions. [2024-10-24 15:29:44,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 585 transitions, 1680 flow [2024-10-24 15:29:44,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 585 transitions, 1670 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:29:44,055 INFO L231 Difference]: Finished difference. Result has 448 places, 540 transitions, 1575 flow [2024-10-24 15:29:44,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1575, PETRI_PLACES=448, PETRI_TRANSITIONS=540} [2024-10-24 15:29:44,057 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2024-10-24 15:29:44,057 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 540 transitions, 1575 flow [2024-10-24 15:29:44,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:44,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:44,058 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] [2024-10-24 15:29:44,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:29:44,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:44,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:44,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1170861615, now seen corresponding path program 1 times [2024-10-24 15:29:44,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:44,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725268392] [2024-10-24 15:29:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:44,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:44,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:44,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725268392] [2024-10-24 15:29:44,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725268392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:44,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:44,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:44,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695280902] [2024-10-24 15:29:44,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:44,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:44,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:44,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:44,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-10-24 15:29:44,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 540 transitions, 1575 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:44,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:44,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-10-24 15:29:44,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:47,951 INFO L124 PetriNetUnfolderBase]: 5534/21184 cut-off events. [2024-10-24 15:29:47,951 INFO L125 PetriNetUnfolderBase]: For 3369/3415 co-relation queries the response was YES. [2024-10-24 15:29:47,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36358 conditions, 21184 events. 5534/21184 cut-off events. For 3369/3415 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 216097 event pairs, 3888 based on Foata normal form. 0/19320 useless extension candidates. Maximal degree in co-relation 35835. Up to 10652 conditions per place. [2024-10-24 15:29:48,048 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 277 selfloop transitions, 171 changer transitions 0/744 dead transitions. [2024-10-24 15:29:48,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 744 transitions, 3071 flow [2024-10-24 15:29:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-10-24 15:29:48,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-10-24 15:29:48,055 INFO L175 Difference]: Start difference. First operand has 448 places, 540 transitions, 1575 flow. Second operand 6 states and 2144 transitions. [2024-10-24 15:29:48,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 744 transitions, 3071 flow [2024-10-24 15:29:48,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 744 transitions, 3071 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:29:48,079 INFO L231 Difference]: Finished difference. Result has 457 places, 704 transitions, 2871 flow [2024-10-24 15:29:48,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1573, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2871, PETRI_PLACES=457, PETRI_TRANSITIONS=704} [2024-10-24 15:29:48,081 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 13 predicate places. [2024-10-24 15:29:48,081 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 704 transitions, 2871 flow [2024-10-24 15:29:48,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:48,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:48,083 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] [2024-10-24 15:29:48,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:29:48,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:48,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash 91996484, now seen corresponding path program 1 times [2024-10-24 15:29:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880783024] [2024-10-24 15:29:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:48,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:48,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880783024] [2024-10-24 15:29:48,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880783024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:48,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:48,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236284579] [2024-10-24 15:29:48,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:48,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:48,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:48,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:48,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-10-24 15:29:48,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 704 transitions, 2871 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:48,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:48,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-10-24 15:29:48,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:52,419 INFO L124 PetriNetUnfolderBase]: 5975/22696 cut-off events. [2024-10-24 15:29:52,419 INFO L125 PetriNetUnfolderBase]: For 7282/7340 co-relation queries the response was YES. [2024-10-24 15:29:52,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43653 conditions, 22696 events. 5975/22696 cut-off events. For 7282/7340 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 232087 event pairs, 3928 based on Foata normal form. 0/20767 useless extension candidates. Maximal degree in co-relation 43106. Up to 11147 conditions per place. [2024-10-24 15:29:52,510 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 437 selfloop transitions, 171 changer transitions 0/908 dead transitions. [2024-10-24 15:29:52,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 908 transitions, 5007 flow [2024-10-24 15:29:52,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-10-24 15:29:52,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-10-24 15:29:52,514 INFO L175 Difference]: Start difference. First operand has 457 places, 704 transitions, 2871 flow. Second operand 6 states and 2144 transitions. [2024-10-24 15:29:52,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 908 transitions, 5007 flow [2024-10-24 15:29:52,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 908 transitions, 4815 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-10-24 15:29:52,539 INFO L231 Difference]: Finished difference. Result has 466 places, 868 transitions, 4295 flow [2024-10-24 15:29:52,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=2677, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4295, PETRI_PLACES=466, PETRI_TRANSITIONS=868} [2024-10-24 15:29:52,540 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 22 predicate places. [2024-10-24 15:29:52,540 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 868 transitions, 4295 flow [2024-10-24 15:29:52,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:52,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:52,542 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, 1, 1, 1, 1] [2024-10-24 15:29:52,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:29:52,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:52,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:52,542 INFO L85 PathProgramCache]: Analyzing trace with hash -523586412, now seen corresponding path program 1 times [2024-10-24 15:29:52,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597007352] [2024-10-24 15:29:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:52,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:52,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597007352] [2024-10-24 15:29:52,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597007352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:52,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:52,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:52,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262262653] [2024-10-24 15:29:52,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:52,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:52,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:53,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 472 [2024-10-24 15:29:53,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 868 transitions, 4295 flow. Second operand has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:53,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:53,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 472 [2024-10-24 15:29:53,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:57,649 INFO L124 PetriNetUnfolderBase]: 6422/23877 cut-off events. [2024-10-24 15:29:57,649 INFO L125 PetriNetUnfolderBase]: For 13678/13798 co-relation queries the response was YES. [2024-10-24 15:29:57,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51733 conditions, 23877 events. 6422/23877 cut-off events. For 13678/13798 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 244834 event pairs, 3870 based on Foata normal form. 0/21861 useless extension candidates. Maximal degree in co-relation 51106. Up to 12188 conditions per place. [2024-10-24 15:29:57,819 INFO L140 encePairwiseOnDemand]: 425/472 looper letters, 613 selfloop transitions, 166 changer transitions 0/1073 dead transitions. [2024-10-24 15:29:57,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1073 transitions, 7095 flow [2024-10-24 15:29:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2024-10-24 15:29:57,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-24 15:29:57,824 INFO L175 Difference]: Start difference. First operand has 466 places, 868 transitions, 4295 flow. Second operand 6 states and 2124 transitions. [2024-10-24 15:29:57,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1073 transitions, 7095 flow [2024-10-24 15:29:57,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1073 transitions, 6583 flow, removed 256 selfloop flow, removed 0 redundant places. [2024-10-24 15:29:57,872 INFO L231 Difference]: Finished difference. Result has 476 places, 1033 transitions, 5701 flow [2024-10-24 15:29:57,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=3783, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5701, PETRI_PLACES=476, PETRI_TRANSITIONS=1033} [2024-10-24 15:29:57,874 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 32 predicate places. [2024-10-24 15:29:57,875 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 1033 transitions, 5701 flow [2024-10-24 15:29:57,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:57,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:57,877 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:29:57,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:29:57,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-24 15:29:57,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:57,878 INFO L85 PathProgramCache]: Analyzing trace with hash 527808276, now seen corresponding path program 1 times [2024-10-24 15:29:57,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:57,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547983274] [2024-10-24 15:29:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:29:57,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:29:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:29:57,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:29:57,978 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:29:57,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-10-24 15:29:57,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-10-24 15:29:57,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-10-24 15:29:57,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-10-24 15:29:57,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-10-24 15:29:57,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-10-24 15:29:57,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-10-24 15:29:57,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-10-24 15:29:57,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-10-24 15:29:57,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-10-24 15:29:57,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-10-24 15:29:57,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-10-24 15:29:57,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-10-24 15:29:57,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-10-24 15:29:57,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-10-24 15:29:57,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-10-24 15:29:57,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-10-24 15:29:57,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-10-24 15:29:57,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:29:57,994 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 15:29:57,996 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:29:57,996 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:29:58,348 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:29:58,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 637 transitions, 1290 flow [2024-10-24 15:29:58,509 INFO L124 PetriNetUnfolderBase]: 81/1109 cut-off events. [2024-10-24 15:29:58,510 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:29:58,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1109 events. 81/1109 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5052 event pairs, 0 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 696. Up to 12 conditions per place. [2024-10-24 15:29:58,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 637 transitions, 1290 flow [2024-10-24 15:29:58,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 637 transitions, 1290 flow [2024-10-24 15:29:58,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:29:58,549 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;@9ffb180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:29:58,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-24 15:29:58,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:29:58,552 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-10-24 15:29:58,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:29:58,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:58,555 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] [2024-10-24 15:29:58,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-24 15:29:58,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:58,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1298180073, now seen corresponding path program 1 times [2024-10-24 15:29:58,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:58,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347887824] [2024-10-24 15:29:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:58,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:58,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:58,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347887824] [2024-10-24 15:29:58,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347887824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:58,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:58,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:58,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391205684] [2024-10-24 15:29:58,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:58,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:58,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:58,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:59,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 637 [2024-10-24 15:29:59,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 637 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:59,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:59,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 637 [2024-10-24 15:29:59,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand