./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_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 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_26-alloc_region_rc.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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:47:29,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:47:29,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:47:29,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:47:29,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:47:29,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:47:29,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:47:29,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:47:29,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:47:29,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:47:29,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:47:29,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:47:29,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:47:29,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:47:29,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:47:29,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:47:29,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:47:29,322 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:47:29,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:47:29,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:47:29,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:47:29,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:47:29,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:47:29,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:47:29,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:47:29,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:47:29,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:47:29,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:47:29,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:47:29,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:47:29,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:47:29,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:47:29,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:47:29,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:47:29,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:47:29,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:47:29,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-11-20 13:47:29,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:47:29,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:47:29,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:47:29,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:47:29,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:47:29,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-20 13:47:31,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:47:31,383 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:47:31,384 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-20 13:47:31,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae32bcf3/3196ed059df940b6b18cc8effe88df63/FLAG917edaf4d [2024-11-20 13:47:31,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae32bcf3/3196ed059df940b6b18cc8effe88df63 [2024-11-20 13:47:31,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:47:31,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:47:31,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:47:31,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:47:31,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:47:31,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:47:31" (1/1) ... [2024-11-20 13:47:31,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2784cba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:31, skipping insertion in model container [2024-11-20 13:47:31,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:47:31" (1/1) ... [2024-11-20 13:47:31,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:47:31,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:47:31,900 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:47:31,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:47:32,000 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:47:32,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32 WrapperNode [2024-11-20 13:47:32,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:47:32,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:47:32,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:47:32,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:47:32,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,054 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 244 [2024-11-20 13:47:32,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:47:32,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:47:32,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:47:32,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:47:32,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:47:32,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:47:32,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:47:32,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:47:32,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (1/1) ... [2024-11-20 13:47:32,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:47:32,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:47:32,138 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) [2024-11-20 13:47:32,140 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 [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:47:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:47:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:47:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:47:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:47:32,175 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:47:32,294 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:47:32,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:47:32,780 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:47:32,780 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:47:32,801 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:47:32,801 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 13:47:32,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:47:32 BoogieIcfgContainer [2024-11-20 13:47:32,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:47:32,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:47:32,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:47:32,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:47:32,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:47:31" (1/3) ... [2024-11-20 13:47:32,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143879c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:47:32, skipping insertion in model container [2024-11-20 13:47:32,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:47:32" (2/3) ... [2024-11-20 13:47:32,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143879c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:47:32, skipping insertion in model container [2024-11-20 13:47:32,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:47:32" (3/3) ... [2024-11-20 13:47:32,807 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-11-20 13:47:32,818 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:47:32,819 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-20 13:47:32,819 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:47:32,893 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:47:32,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-11-20 13:47:32,991 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-11-20 13:47:32,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:47:32,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-11-20 13:47:33,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-11-20 13:47:33,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-11-20 13:47:33,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:47:33,025 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;@2330011c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:47:33,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 13:47:33,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:47:33,039 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-20 13:47:33,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:47:33,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:33,044 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] [2024-11-20 13:47:33,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:33,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash 588289797, now seen corresponding path program 1 times [2024-11-20 13:47:33,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:33,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763533925] [2024-11-20 13:47:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:33,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763533925] [2024-11-20 13:47:33,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763533925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:33,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:33,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079090433] [2024-11-20 13:47:33,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:33,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:33,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:34,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-11-20 13:47:34,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:34,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:34,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-11-20 13:47:34,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:35,426 INFO L124 PetriNetUnfolderBase]: 1377/4968 cut-off events. [2024-11-20 13:47:35,426 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:47:35,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7762 conditions, 4968 events. 1377/4968 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 37213 event pairs, 1344 based on Foata normal form. 36/4638 useless extension candidates. Maximal degree in co-relation 7665. Up to 2785 conditions per place. [2024-11-20 13:47:35,453 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-11-20 13:47:35,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-11-20 13:47:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-11-20 13:47:35,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-11-20 13:47:35,473 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-11-20 13:47:35,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-11-20 13:47:35,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:47:35,480 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-11-20 13:47:35,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-11-20 13:47:35,485 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-11-20 13:47:35,485 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-11-20 13:47:35,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:35,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:35,486 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] [2024-11-20 13:47:35,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:47:35,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:35,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:35,487 INFO L85 PathProgramCache]: Analyzing trace with hash 88798604, now seen corresponding path program 1 times [2024-11-20 13:47:35,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:35,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980128726] [2024-11-20 13:47:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:35,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:35,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:35,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980128726] [2024-11-20 13:47:35,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980128726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:35,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:35,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:35,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30998938] [2024-11-20 13:47:35,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:35,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:35,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:35,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:36,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-11-20 13:47:36,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:36,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:36,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-11-20 13:47:36,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:37,219 INFO L124 PetriNetUnfolderBase]: 762/4047 cut-off events. [2024-11-20 13:47:37,219 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:47:37,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5631 conditions, 4047 events. 762/4047 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31117 event pairs, 460 based on Foata normal form. 0/3686 useless extension candidates. Maximal degree in co-relation 5584. Up to 1372 conditions per place. [2024-11-20 13:47:37,316 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-11-20 13:47:37,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-11-20 13:47:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-11-20 13:47:37,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-11-20 13:47:37,320 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-11-20 13:47:37,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-11-20 13:47:37,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:47:37,330 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-11-20 13:47:37,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-11-20 13:47:37,331 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-11-20 13:47:37,331 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-11-20 13:47:37,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:37,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:37,332 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] [2024-11-20 13:47:37,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:47:37,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:37,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1585679875, now seen corresponding path program 1 times [2024-11-20 13:47:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:37,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248544240] [2024-11-20 13:47:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:37,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:37,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:37,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248544240] [2024-11-20 13:47:37,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248544240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:37,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:37,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892521044] [2024-11-20 13:47:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:37,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:37,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-20 13:47:37,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:37,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:37,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-20 13:47:37,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:39,035 INFO L124 PetriNetUnfolderBase]: 2110/7415 cut-off events. [2024-11-20 13:47:39,035 INFO L125 PetriNetUnfolderBase]: For 1556/1568 co-relation queries the response was YES. [2024-11-20 13:47:39,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13845 conditions, 7415 events. 2110/7415 cut-off events. For 1556/1568 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 59857 event pairs, 1264 based on Foata normal form. 0/6797 useless extension candidates. Maximal degree in co-relation 13740. Up to 4041 conditions per place. [2024-11-20 13:47:39,204 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-11-20 13:47:39,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-11-20 13:47:39,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-20 13:47:39,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-20 13:47:39,226 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-11-20 13:47:39,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-11-20 13:47:39,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:39,253 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-11-20 13:47:39,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-11-20 13:47:39,261 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-11-20 13:47:39,261 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-11-20 13:47:39,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:39,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:39,262 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] [2024-11-20 13:47:39,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:47:39,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:39,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1646599047, now seen corresponding path program 1 times [2024-11-20 13:47:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256630505] [2024-11-20 13:47:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:39,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:39,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256630505] [2024-11-20 13:47:39,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256630505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:39,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:39,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:39,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314406577] [2024-11-20 13:47:39,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:39,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:39,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:40,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-20 13:47:40,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:40,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:40,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-20 13:47:40,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:42,030 INFO L124 PetriNetUnfolderBase]: 2413/8345 cut-off events. [2024-11-20 13:47:42,031 INFO L125 PetriNetUnfolderBase]: For 3708/3726 co-relation queries the response was YES. [2024-11-20 13:47:42,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8345 events. 2413/8345 cut-off events. For 3708/3726 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 67957 event pairs, 1292 based on Foata normal form. 0/7701 useless extension candidates. Maximal degree in co-relation 17683. Up to 4368 conditions per place. [2024-11-20 13:47:42,074 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-11-20 13:47:42,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-11-20 13:47:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-20 13:47:42,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-20 13:47:42,078 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-11-20 13:47:42,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-11-20 13:47:42,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:42,099 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-11-20 13:47:42,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-11-20 13:47:42,100 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-11-20 13:47:42,101 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-11-20 13:47:42,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:42,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:42,102 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] [2024-11-20 13:47:42,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:47:42,102 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:42,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:42,104 INFO L85 PathProgramCache]: Analyzing trace with hash 755334796, now seen corresponding path program 1 times [2024-11-20 13:47:42,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:42,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382360016] [2024-11-20 13:47:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:42,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:42,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382360016] [2024-11-20 13:47:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382360016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:42,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:42,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:42,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732040837] [2024-11-20 13:47:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:42,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:42,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:42,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-20 13:47:42,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:42,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:42,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-20 13:47:42,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:44,556 INFO L124 PetriNetUnfolderBase]: 2735/9143 cut-off events. [2024-11-20 13:47:44,557 INFO L125 PetriNetUnfolderBase]: For 5402/5479 co-relation queries the response was YES. [2024-11-20 13:47:44,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21642 conditions, 9143 events. 2735/9143 cut-off events. For 5402/5479 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 74784 event pairs, 1246 based on Foata normal form. 0/8476 useless extension candidates. Maximal degree in co-relation 21510. Up to 4881 conditions per place. [2024-11-20 13:47:44,612 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-11-20 13:47:44,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-11-20 13:47:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-20 13:47:44,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-20 13:47:44,615 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-11-20 13:47:44,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-11-20 13:47:44,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:44,638 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-11-20 13:47:44,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-11-20 13:47:44,640 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-11-20 13:47:44,640 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-11-20 13:47:44,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:44,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:44,642 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, 1, 1, 1, 1, 1] [2024-11-20 13:47:44,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:47:44,642 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:44,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:44,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1921247633, now seen corresponding path program 1 times [2024-11-20 13:47:44,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:44,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834223136] [2024-11-20 13:47:44,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:44,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:45,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:45,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834223136] [2024-11-20 13:47:45,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834223136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:45,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:45,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:47:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041368353] [2024-11-20 13:47:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:45,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:47:45,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:47:45,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:47:45,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-20 13:47:45,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:45,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:45,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-20 13:47:45,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:47,315 INFO L124 PetriNetUnfolderBase]: 3180/10480 cut-off events. [2024-11-20 13:47:47,315 INFO L125 PetriNetUnfolderBase]: For 8590/8696 co-relation queries the response was YES. [2024-11-20 13:47:47,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 10480 events. 3180/10480 cut-off events. For 8590/8696 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 87524 event pairs, 1284 based on Foata normal form. 0/9787 useless extension candidates. Maximal degree in co-relation 27752. Up to 5371 conditions per place. [2024-11-20 13:47:47,401 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-11-20 13:47:47,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-11-20 13:47:47,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:47:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:47:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-20 13:47:47,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-20 13:47:47,408 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-11-20 13:47:47,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-11-20 13:47:47,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:47,492 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-11-20 13:47:47,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-11-20 13:47:47,498 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-11-20 13:47:47,498 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-11-20 13:47:47,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:47,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:47,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:47,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:47:47,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:47,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash 449356076, now seen corresponding path program 1 times [2024-11-20 13:47:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430307790] [2024-11-20 13:47:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:48,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:48,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:48,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430307790] [2024-11-20 13:47:48,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430307790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:48,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:48,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:47:48,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899578225] [2024-11-20 13:47:48,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:48,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:47:48,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:48,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:47:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:47:51,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:47:51,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:51,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:51,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:47:51,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:47:57,063 INFO L124 PetriNetUnfolderBase]: 4111/12732 cut-off events. [2024-11-20 13:47:57,064 INFO L125 PetriNetUnfolderBase]: For 15762/15857 co-relation queries the response was YES. [2024-11-20 13:47:57,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38443 conditions, 12732 events. 4111/12732 cut-off events. For 15762/15857 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 106101 event pairs, 787 based on Foata normal form. 37/12138 useless extension candidates. Maximal degree in co-relation 38294. Up to 4181 conditions per place. [2024-11-20 13:47:57,135 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 921 selfloop transitions, 276 changer transitions 0/1416 dead transitions. [2024-11-20 13:47:57,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1416 transitions, 11032 flow [2024-11-20 13:47:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 13:47:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-20 13:47:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5542 transitions. [2024-11-20 13:47:57,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6548505258182677 [2024-11-20 13:47:57,145 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 31 states and 5542 transitions. [2024-11-20 13:47:57,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1416 transitions, 11032 flow [2024-11-20 13:47:57,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1416 transitions, 10672 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-11-20 13:47:57,220 INFO L231 Difference]: Finished difference. Result has 374 places, 1026 transitions, 7334 flow [2024-11-20 13:47:57,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7334, PETRI_PLACES=374, PETRI_TRANSITIONS=1026} [2024-11-20 13:47:57,222 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 100 predicate places. [2024-11-20 13:47:57,222 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1026 transitions, 7334 flow [2024-11-20 13:47:57,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:57,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:47:57,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:47:57,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:47:57,223 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:47:57,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:47:57,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1911054158, now seen corresponding path program 2 times [2024-11-20 13:47:57,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:47:57,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052776756] [2024-11-20 13:47:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:47:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:47:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:47:57,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:47:57,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:47:57,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052776756] [2024-11-20 13:47:57,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052776756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:47:57,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:47:57,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:47:57,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390830835] [2024-11-20 13:47:57,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:47:57,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:47:57,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:47:57,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:47:57,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:47:59,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:47:59,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1026 transitions, 7334 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:47:59,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:47:59,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:47:59,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:04,744 INFO L124 PetriNetUnfolderBase]: 5069/15573 cut-off events. [2024-11-20 13:48:04,744 INFO L125 PetriNetUnfolderBase]: For 29397/29730 co-relation queries the response was YES. [2024-11-20 13:48:04,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52356 conditions, 15573 events. 5069/15573 cut-off events. For 29397/29730 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 134860 event pairs, 792 based on Foata normal form. 38/14883 useless extension candidates. Maximal degree in co-relation 52181. Up to 2883 conditions per place. [2024-11-20 13:48:04,867 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1340 selfloop transitions, 200 changer transitions 0/1759 dead transitions. [2024-11-20 13:48:04,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1759 transitions, 16168 flow [2024-11-20 13:48:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 13:48:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-20 13:48:04,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-11-20 13:48:04,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-11-20 13:48:04,874 INFO L175 Difference]: Start difference. First operand has 374 places, 1026 transitions, 7334 flow. Second operand 22 states and 3946 transitions. [2024-11-20 13:48:04,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1759 transitions, 16168 flow [2024-11-20 13:48:05,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1759 transitions, 15958 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-11-20 13:48:05,046 INFO L231 Difference]: Finished difference. Result has 404 places, 1170 transitions, 9471 flow [2024-11-20 13:48:05,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7194, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9471, PETRI_PLACES=404, PETRI_TRANSITIONS=1170} [2024-11-20 13:48:05,048 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 130 predicate places. [2024-11-20 13:48:05,048 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1170 transitions, 9471 flow [2024-11-20 13:48:05,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:05,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:05,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:48:05,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:48:05,050 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:48:05,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:05,050 INFO L85 PathProgramCache]: Analyzing trace with hash 578424137, now seen corresponding path program 1 times [2024-11-20 13:48:05,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:05,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411616634] [2024-11-20 13:48:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:05,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411616634] [2024-11-20 13:48:05,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411616634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:05,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:05,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:48:05,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055682743] [2024-11-20 13:48:05,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:05,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:48:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:05,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:48:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:48:07,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:48:07,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1170 transitions, 9471 flow. Second operand has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:07,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:07,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:48:07,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:13,052 INFO L124 PetriNetUnfolderBase]: 6150/18399 cut-off events. [2024-11-20 13:48:13,052 INFO L125 PetriNetUnfolderBase]: For 47860/48234 co-relation queries the response was YES. [2024-11-20 13:48:13,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67252 conditions, 18399 events. 6150/18399 cut-off events. For 47860/48234 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 162462 event pairs, 1277 based on Foata normal form. 93/17663 useless extension candidates. Maximal degree in co-relation 67064. Up to 5066 conditions per place. [2024-11-20 13:48:13,309 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 1517 selfloop transitions, 209 changer transitions 0/1975 dead transitions. [2024-11-20 13:48:13,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1975 transitions, 20177 flow [2024-11-20 13:48:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 13:48:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-20 13:48:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3983 transitions. [2024-11-20 13:48:13,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6631701631701632 [2024-11-20 13:48:13,321 INFO L175 Difference]: Start difference. First operand has 404 places, 1170 transitions, 9471 flow. Second operand 22 states and 3983 transitions. [2024-11-20 13:48:13,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1975 transitions, 20177 flow [2024-11-20 13:48:13,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 1975 transitions, 19906 flow, removed 109 selfloop flow, removed 2 redundant places. [2024-11-20 13:48:13,771 INFO L231 Difference]: Finished difference. Result has 438 places, 1315 transitions, 11526 flow [2024-11-20 13:48:13,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=9268, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11526, PETRI_PLACES=438, PETRI_TRANSITIONS=1315} [2024-11-20 13:48:13,772 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 164 predicate places. [2024-11-20 13:48:13,772 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1315 transitions, 11526 flow [2024-11-20 13:48:13,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:13,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:13,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:48:13,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:48:13,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:48:13,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:13,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1516309818, now seen corresponding path program 3 times [2024-11-20 13:48:13,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:13,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832137233] [2024-11-20 13:48:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:14,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:14,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832137233] [2024-11-20 13:48:14,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832137233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:14,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:14,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:48:14,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567804622] [2024-11-20 13:48:14,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:14,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:48:14,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:14,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:48:14,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:48:16,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:48:16,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1315 transitions, 11526 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:16,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:16,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:48:16,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:24,029 INFO L124 PetriNetUnfolderBase]: 7136/21244 cut-off events. [2024-11-20 13:48:24,029 INFO L125 PetriNetUnfolderBase]: For 65009/65795 co-relation queries the response was YES. [2024-11-20 13:48:24,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82993 conditions, 21244 events. 7136/21244 cut-off events. For 65009/65795 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 193794 event pairs, 2002 based on Foata normal form. 104/20381 useless extension candidates. Maximal degree in co-relation 82786. Up to 10216 conditions per place. [2024-11-20 13:48:24,359 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1447 selfloop transitions, 208 changer transitions 0/1901 dead transitions. [2024-11-20 13:48:24,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1901 transitions, 20196 flow [2024-11-20 13:48:24,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 13:48:24,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 13:48:24,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3044 transitions. [2024-11-20 13:48:24,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6558931264813618 [2024-11-20 13:48:24,370 INFO L175 Difference]: Start difference. First operand has 438 places, 1315 transitions, 11526 flow. Second operand 17 states and 3044 transitions. [2024-11-20 13:48:24,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1901 transitions, 20196 flow [2024-11-20 13:48:24,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1901 transitions, 20053 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-11-20 13:48:24,952 INFO L231 Difference]: Finished difference. Result has 467 places, 1434 transitions, 14042 flow [2024-11-20 13:48:24,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=11471, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14042, PETRI_PLACES=467, PETRI_TRANSITIONS=1434} [2024-11-20 13:48:24,955 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 193 predicate places. [2024-11-20 13:48:24,955 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 1434 transitions, 14042 flow [2024-11-20 13:48:24,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:24,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:24,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:48:24,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:48:24,957 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:48:24,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:24,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1392137234, now seen corresponding path program 4 times [2024-11-20 13:48:24,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:24,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503825443] [2024-11-20 13:48:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:26,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:26,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503825443] [2024-11-20 13:48:26,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503825443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:26,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:26,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:48:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680126990] [2024-11-20 13:48:26,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:26,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:48:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:48:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:48:28,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:48:28,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1434 transitions, 14042 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:28,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:28,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:48:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:48:39,236 INFO L124 PetriNetUnfolderBase]: 12146/35011 cut-off events. [2024-11-20 13:48:39,237 INFO L125 PetriNetUnfolderBase]: For 147376/148630 co-relation queries the response was YES. [2024-11-20 13:48:39,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150468 conditions, 35011 events. 12146/35011 cut-off events. For 147376/148630 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 350995 event pairs, 2321 based on Foata normal form. 238/33942 useless extension candidates. Maximal degree in co-relation 150246. Up to 11999 conditions per place. [2024-11-20 13:48:40,031 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 2542 selfloop transitions, 389 changer transitions 0/3177 dead transitions. [2024-11-20 13:48:40,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 3177 transitions, 38983 flow [2024-11-20 13:48:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-20 13:48:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-20 13:48:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4862 transitions. [2024-11-20 13:48:40,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6596119929453262 [2024-11-20 13:48:40,041 INFO L175 Difference]: Start difference. First operand has 467 places, 1434 transitions, 14042 flow. Second operand 27 states and 4862 transitions. [2024-11-20 13:48:40,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 3177 transitions, 38983 flow [2024-11-20 13:48:41,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 3177 transitions, 38659 flow, removed 162 selfloop flow, removed 0 redundant places. [2024-11-20 13:48:41,942 INFO L231 Difference]: Finished difference. Result has 513 places, 1692 transitions, 19444 flow [2024-11-20 13:48:41,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=13726, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=19444, PETRI_PLACES=513, PETRI_TRANSITIONS=1692} [2024-11-20 13:48:41,944 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 239 predicate places. [2024-11-20 13:48:41,944 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 1692 transitions, 19444 flow [2024-11-20 13:48:41,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:41,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:48:41,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:48:41,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:48:41,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:48:41,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:48:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 554784608, now seen corresponding path program 5 times [2024-11-20 13:48:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:48:41,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366313931] [2024-11-20 13:48:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:48:41,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:48:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:48:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:48:42,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:48:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366313931] [2024-11-20 13:48:42,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366313931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:48:42,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:48:42,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 13:48:42,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276682040] [2024-11-20 13:48:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:48:42,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 13:48:42,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:48:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 13:48:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:48:44,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-20 13:48:44,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1692 transitions, 19444 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:48:44,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:48:44,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-20 13:48:44,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand