./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:34:07,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:34:07,239 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:34:07,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:34:07,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:34:07,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:34:07,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:34:07,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:34:07,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:34:07,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:34:07,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:34:07,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:34:07,272 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:34:07,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:34:07,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:34:07,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:34:07,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:34:07,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:34:07,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:34:07,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:34:07,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:34:07,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:34:07,275 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:34:07,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:34:07,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:34:07,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:34:07,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:34:07,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:34:07,278 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:34:07,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:34:07,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:34:07,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:07,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:34:07,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:34:07,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:34:07,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:34:07,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:34:07,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:34:07,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:34:07,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:34:07,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:34:07,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-11-10 14:34:07,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:34:07,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:34:07,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:34:07,483 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:34:07,483 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:34:07,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-10 14:34:08,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:34:08,991 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:34:08,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-10 14:34:09,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/623cee660/ee428ade8ad745f08b7414702a6d09eb/FLAG33a962fac [2024-11-10 14:34:09,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/623cee660/ee428ade8ad745f08b7414702a6d09eb [2024-11-10 14:34:09,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:34:09,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:34:09,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:09,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:34:09,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:34:09,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09, skipping insertion in model container [2024-11-10 14:34:09,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:34:09,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:09,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:34:09,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:09,607 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:34:09,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09 WrapperNode [2024-11-10 14:34:09,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:09,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:09,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:34:09,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:34:09,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,665 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 422 [2024-11-10 14:34:09,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:09,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:34:09,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:34:09,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:34:09,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:34:09,706 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:34:09,707 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:34:09,707 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:34:09,707 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (1/1) ... [2024-11-10 14:34:09,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:09,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:09,752 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) [2024-11-10 14:34:09,758 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 [2024-11-10 14:34:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:34:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:34:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:34:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:34:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:34:09,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:34:09,796 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:34:09,921 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:34:09,923 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:34:10,356 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 14:34:10,357 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 14:34:10,472 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:34:10,472 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:34:10,522 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:34:10,522 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:34:10,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:10 BoogieIcfgContainer [2024-11-10 14:34:10,523 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:34:10,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:34:10,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:34:10,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:34:10,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:34:09" (1/3) ... [2024-11-10 14:34:10,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab4034b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:10, skipping insertion in model container [2024-11-10 14:34:10,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:09" (2/3) ... [2024-11-10 14:34:10,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab4034b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:10, skipping insertion in model container [2024-11-10 14:34:10,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:10" (3/3) ... [2024-11-10 14:34:10,530 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-11-10 14:34:10,543 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:34:10,543 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-10 14:34:10,543 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:34:10,601 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:34:10,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 414 places, 459 transitions, 925 flow [2024-11-10 14:34:10,782 INFO L124 PetriNetUnfolderBase]: 78/702 cut-off events. [2024-11-10 14:34:10,782 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:34:10,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 702 events. 78/702 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3441 event pairs, 0 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 363. Up to 8 conditions per place. [2024-11-10 14:34:10,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 414 places, 459 transitions, 925 flow [2024-11-10 14:34:10,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 459 transitions, 925 flow [2024-11-10 14:34:10,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:10,822 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;@2a90ddad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:10,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 14:34:10,862 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:10,863 INFO L124 PetriNetUnfolderBase]: 8/140 cut-off events. [2024-11-10 14:34:10,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:10,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:10,864 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, 1] [2024-11-10 14:34:10,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:10,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 890537129, now seen corresponding path program 1 times [2024-11-10 14:34:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:10,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541289008] [2024-11-10 14:34:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:11,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:11,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541289008] [2024-11-10 14:34:11,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541289008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:11,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883829715] [2024-11-10 14:34:11,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:11,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:11,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:11,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 459 [2024-11-10 14:34:11,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 459 transitions, 925 flow. Second operand has 2 states, 2 states have (on average 391.5) internal successors, (783), 2 states have internal predecessors, (783), 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) [2024-11-10 14:34:11,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:11,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 459 [2024-11-10 14:34:11,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:11,726 INFO L124 PetriNetUnfolderBase]: 151/2137 cut-off events. [2024-11-10 14:34:11,726 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-11-10 14:34:11,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2421 conditions, 2137 events. 151/2137 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17082 event pairs, 112 based on Foata normal form. 473/2434 useless extension candidates. Maximal degree in co-relation 2089. Up to 278 conditions per place. [2024-11-10 14:34:11,736 INFO L140 encePairwiseOnDemand]: 418/459 looper letters, 24 selfloop transitions, 0 changer transitions 0/412 dead transitions. [2024-11-10 14:34:11,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 879 flow [2024-11-10 14:34:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:11,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 847 transitions. [2024-11-10 14:34:11,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9226579520697168 [2024-11-10 14:34:11,754 INFO L175 Difference]: Start difference. First operand has 414 places, 459 transitions, 925 flow. Second operand 2 states and 847 transitions. [2024-11-10 14:34:11,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 879 flow [2024-11-10 14:34:11,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 412 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:11,765 INFO L231 Difference]: Finished difference. Result has 409 places, 412 transitions, 831 flow [2024-11-10 14:34:11,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=831, PETRI_PLACES=409, PETRI_TRANSITIONS=412} [2024-11-10 14:34:11,770 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -5 predicate places. [2024-11-10 14:34:11,772 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 412 transitions, 831 flow [2024-11-10 14:34:11,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 391.5) internal successors, (783), 2 states have internal predecessors, (783), 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) [2024-11-10 14:34:11,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:11,773 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, 1, 1] [2024-11-10 14:34:11,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:34:11,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:11,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:11,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1018742690, now seen corresponding path program 1 times [2024-11-10 14:34:11,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:11,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57516234] [2024-11-10 14:34:11,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:11,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:11,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:11,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57516234] [2024-11-10 14:34:11,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57516234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:11,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:11,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448268155] [2024-11-10 14:34:11,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:11,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:11,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:11,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:11,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:11,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 459 [2024-11-10 14:34:11,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 412 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-11-10 14:34:11,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:11,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 459 [2024-11-10 14:34:11,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:12,267 INFO L124 PetriNetUnfolderBase]: 161/2250 cut-off events. [2024-11-10 14:34:12,267 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-11-10 14:34:12,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 2250 events. 161/2250 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18378 event pairs, 120 based on Foata normal form. 1/2067 useless extension candidates. Maximal degree in co-relation 2556. Up to 302 conditions per place. [2024-11-10 14:34:12,280 INFO L140 encePairwiseOnDemand]: 456/459 looper letters, 29 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2024-11-10 14:34:12,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 895 flow [2024-11-10 14:34:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:12,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:12,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2024-11-10 14:34:12,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8620188816267248 [2024-11-10 14:34:12,287 INFO L175 Difference]: Start difference. First operand has 409 places, 412 transitions, 831 flow. Second operand 3 states and 1187 transitions. [2024-11-10 14:34:12,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 895 flow [2024-11-10 14:34:12,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 413 transitions, 895 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:12,295 INFO L231 Difference]: Finished difference. Result has 412 places, 413 transitions, 843 flow [2024-11-10 14:34:12,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=412, PETRI_TRANSITIONS=413} [2024-11-10 14:34:12,297 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -2 predicate places. [2024-11-10 14:34:12,297 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 413 transitions, 843 flow [2024-11-10 14:34:12,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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) [2024-11-10 14:34:12,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:12,298 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:12,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:34:12,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:12,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 605617069, now seen corresponding path program 1 times [2024-11-10 14:34:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:12,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188300292] [2024-11-10 14:34:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:12,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:12,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188300292] [2024-11-10 14:34:12,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188300292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:12,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060128079] [2024-11-10 14:34:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:12,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:12,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:12,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:12,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:34:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:12,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:12,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:12,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:12,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:12,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060128079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:12,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:12,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:12,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483981137] [2024-11-10 14:34:12,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:12,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:12,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 459 [2024-11-10 14:34:12,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 413 transitions, 843 flow. Second operand has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 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) [2024-11-10 14:34:12,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:12,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 459 [2024-11-10 14:34:12,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:13,006 INFO L124 PetriNetUnfolderBase]: 161/2259 cut-off events. [2024-11-10 14:34:13,007 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-11-10 14:34:13,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 2259 events. 161/2259 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18392 event pairs, 120 based on Foata normal form. 2/2077 useless extension candidates. Maximal degree in co-relation 2582. Up to 302 conditions per place. [2024-11-10 14:34:13,018 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 33 selfloop transitions, 9 changer transitions 0/421 dead transitions. [2024-11-10 14:34:13,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 421 transitions, 945 flow [2024-11-10 14:34:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3482 transitions. [2024-11-10 14:34:13,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8428951827644638 [2024-11-10 14:34:13,023 INFO L175 Difference]: Start difference. First operand has 412 places, 413 transitions, 843 flow. Second operand 9 states and 3482 transitions. [2024-11-10 14:34:13,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 421 transitions, 945 flow [2024-11-10 14:34:13,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 943 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:13,028 INFO L231 Difference]: Finished difference. Result has 422 places, 419 transitions, 891 flow [2024-11-10 14:34:13,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=891, PETRI_PLACES=422, PETRI_TRANSITIONS=419} [2024-11-10 14:34:13,030 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 8 predicate places. [2024-11-10 14:34:13,030 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 419 transitions, 891 flow [2024-11-10 14:34:13,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 383.8) internal successors, (3838), 10 states have internal predecessors, (3838), 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) [2024-11-10 14:34:13,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:13,032 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:13,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:34:13,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:13,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:13,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1374876533, now seen corresponding path program 2 times [2024-11-10 14:34:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:13,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394023556] [2024-11-10 14:34:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394023556] [2024-11-10 14:34:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394023556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403654133] [2024-11-10 14:34:13,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:13,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:13,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:13,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:13,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:34:13,460 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:13,460 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:13,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:13,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:13,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:34:13,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-10 14:34:13,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:13,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-10 14:34:13,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:13,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-10 14:34:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:34:13,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:13,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403654133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:13,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:13,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:13,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674138808] [2024-11-10 14:34:13,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:13,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:13,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:13,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:13,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 459 [2024-11-10 14:34:13,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 419 transitions, 891 flow. Second operand has 8 states, 8 states have (on average 313.125) internal successors, (2505), 8 states have internal predecessors, (2505), 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) [2024-11-10 14:34:13,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:13,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 459 [2024-11-10 14:34:13,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:15,021 INFO L124 PetriNetUnfolderBase]: 2266/8975 cut-off events. [2024-11-10 14:34:15,021 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2024-11-10 14:34:15,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13300 conditions, 8975 events. 2266/8975 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 90852 event pairs, 1675 based on Foata normal form. 1/8172 useless extension candidates. Maximal degree in co-relation 13292. Up to 4105 conditions per place. [2024-11-10 14:34:15,061 INFO L140 encePairwiseOnDemand]: 447/459 looper letters, 160 selfloop transitions, 11 changer transitions 0/487 dead transitions. [2024-11-10 14:34:15,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 487 transitions, 1369 flow [2024-11-10 14:34:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:34:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:34:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2669 transitions. [2024-11-10 14:34:15,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7268518518518519 [2024-11-10 14:34:15,066 INFO L175 Difference]: Start difference. First operand has 422 places, 419 transitions, 891 flow. Second operand 8 states and 2669 transitions. [2024-11-10 14:34:15,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 487 transitions, 1369 flow [2024-11-10 14:34:15,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 487 transitions, 1363 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:15,072 INFO L231 Difference]: Finished difference. Result has 433 places, 426 transitions, 952 flow [2024-11-10 14:34:15,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=952, PETRI_PLACES=433, PETRI_TRANSITIONS=426} [2024-11-10 14:34:15,073 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 19 predicate places. [2024-11-10 14:34:15,074 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 426 transitions, 952 flow [2024-11-10 14:34:15,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 313.125) internal successors, (2505), 8 states have internal predecessors, (2505), 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) [2024-11-10 14:34:15,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:15,075 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:15,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:34:15,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 14:34:15,280 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:15,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash 16855320, now seen corresponding path program 1 times [2024-11-10 14:34:15,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:15,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207736117] [2024-11-10 14:34:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:15,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:15,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:15,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207736117] [2024-11-10 14:34:15,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207736117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:15,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21131351] [2024-11-10 14:34:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:15,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:15,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:15,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:15,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:34:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:15,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:34:15,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:15,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:15,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21131351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:15,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:15,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:34:15,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510635854] [2024-11-10 14:34:15,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:15,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:34:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:34:15,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:34:15,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 459 [2024-11-10 14:34:15,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 426 transitions, 952 flow. Second operand has 18 states, 18 states have (on average 383.94444444444446) internal successors, (6911), 18 states have internal predecessors, (6911), 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) [2024-11-10 14:34:15,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:15,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 459 [2024-11-10 14:34:15,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:16,235 INFO L124 PetriNetUnfolderBase]: 176/2244 cut-off events. [2024-11-10 14:34:16,236 INFO L125 PetriNetUnfolderBase]: For 67/72 co-relation queries the response was YES. [2024-11-10 14:34:16,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 2244 events. 176/2244 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 18196 event pairs, 122 based on Foata normal form. 4/2069 useless extension candidates. Maximal degree in co-relation 2699. Up to 308 conditions per place. [2024-11-10 14:34:16,250 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 37 selfloop transitions, 21 changer transitions 0/444 dead transitions. [2024-11-10 14:34:16,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 444 transitions, 1156 flow [2024-11-10 14:34:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:34:16,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:34:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8084 transitions. [2024-11-10 14:34:16,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386762112252308 [2024-11-10 14:34:16,262 INFO L175 Difference]: Start difference. First operand has 433 places, 426 transitions, 952 flow. Second operand 21 states and 8084 transitions. [2024-11-10 14:34:16,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 444 transitions, 1156 flow [2024-11-10 14:34:16,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 444 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:34:16,269 INFO L231 Difference]: Finished difference. Result has 456 places, 439 transitions, 1075 flow [2024-11-10 14:34:16,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1075, PETRI_PLACES=456, PETRI_TRANSITIONS=439} [2024-11-10 14:34:16,270 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 42 predicate places. [2024-11-10 14:34:16,270 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 439 transitions, 1075 flow [2024-11-10 14:34:16,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 383.94444444444446) internal successors, (6911), 18 states have internal predecessors, (6911), 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) [2024-11-10 14:34:16,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:16,274 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:16,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:34:16,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:16,479 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:16,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 450385628, now seen corresponding path program 2 times [2024-11-10 14:34:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:16,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793866106] [2024-11-10 14:34:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:16,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793866106] [2024-11-10 14:34:16,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793866106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628402407] [2024-11-10 14:34:16,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:16,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:16,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:16,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:16,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:34:16,874 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:16,874 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:16,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:34:16,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:16,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:34:16,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:34:16,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:16,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:34:16,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:16,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:34:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-10 14:34:16,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:16,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628402407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:16,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:16,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:34:16,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711328540] [2024-11-10 14:34:16,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:16,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:34:16,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:34:16,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:34:17,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 459 [2024-11-10 14:34:17,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 439 transitions, 1075 flow. Second operand has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2024-11-10 14:34:17,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:17,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 459 [2024-11-10 14:34:17,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:18,852 INFO L124 PetriNetUnfolderBase]: 2347/9239 cut-off events. [2024-11-10 14:34:18,852 INFO L125 PetriNetUnfolderBase]: For 380/391 co-relation queries the response was YES. [2024-11-10 14:34:18,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14250 conditions, 9239 events. 2347/9239 cut-off events. For 380/391 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 93712 event pairs, 1564 based on Foata normal form. 33/8476 useless extension candidates. Maximal degree in co-relation 14232. Up to 4253 conditions per place. [2024-11-10 14:34:18,904 INFO L140 encePairwiseOnDemand]: 432/459 looper letters, 133 selfloop transitions, 92 changer transitions 0/555 dead transitions. [2024-11-10 14:34:18,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 555 transitions, 1779 flow [2024-11-10 14:34:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:34:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:34:18,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2098 transitions. [2024-11-10 14:34:18,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7618010167029775 [2024-11-10 14:34:18,911 INFO L175 Difference]: Start difference. First operand has 456 places, 439 transitions, 1075 flow. Second operand 6 states and 2098 transitions. [2024-11-10 14:34:18,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 555 transitions, 1779 flow [2024-11-10 14:34:18,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 555 transitions, 1755 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:34:18,923 INFO L231 Difference]: Finished difference. Result has 460 places, 523 transitions, 1659 flow [2024-11-10 14:34:18,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1659, PETRI_PLACES=460, PETRI_TRANSITIONS=523} [2024-11-10 14:34:18,925 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 46 predicate places. [2024-11-10 14:34:18,925 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 523 transitions, 1659 flow [2024-11-10 14:34:18,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2024-11-10 14:34:18,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:18,926 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:18,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:34:19,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:19,127 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:19,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1077053673, now seen corresponding path program 1 times [2024-11-10 14:34:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:19,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273024509] [2024-11-10 14:34:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:19,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:19,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273024509] [2024-11-10 14:34:19,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273024509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:19,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3013775] [2024-11-10 14:34:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:19,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:19,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:19,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:19,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:34:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:19,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:34:19,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:19,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:19,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3013775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:19,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:19,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:34:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292517155] [2024-11-10 14:34:19,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:19,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:34:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:34:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:34:19,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 459 [2024-11-10 14:34:19,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 523 transitions, 1659 flow. Second operand has 23 states, 23 states have (on average 384.04347826086956) internal successors, (8833), 23 states have internal predecessors, (8833), 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) [2024-11-10 14:34:19,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:19,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 459 [2024-11-10 14:34:19,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:20,379 INFO L124 PetriNetUnfolderBase]: 339/3049 cut-off events. [2024-11-10 14:34:20,380 INFO L125 PetriNetUnfolderBase]: For 636/707 co-relation queries the response was YES. [2024-11-10 14:34:20,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 3049 events. 339/3049 cut-off events. For 636/707 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 26708 event pairs, 120 based on Foata normal form. 3/2831 useless extension candidates. Maximal degree in co-relation 4715. Up to 558 conditions per place. [2024-11-10 14:34:20,399 INFO L140 encePairwiseOnDemand]: 453/459 looper letters, 40 selfloop transitions, 30 changer transitions 0/540 dead transitions. [2024-11-10 14:34:20,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 540 transitions, 1921 flow [2024-11-10 14:34:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:34:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:34:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11533 transitions. [2024-11-10 14:34:20,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375453885257806 [2024-11-10 14:34:20,414 INFO L175 Difference]: Start difference. First operand has 460 places, 523 transitions, 1659 flow. Second operand 30 states and 11533 transitions. [2024-11-10 14:34:20,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 540 transitions, 1921 flow [2024-11-10 14:34:20,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 540 transitions, 1903 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:20,426 INFO L231 Difference]: Finished difference. Result has 493 places, 533 transitions, 1793 flow [2024-11-10 14:34:20,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=459, PETRI_DIFFERENCE_MINUEND_FLOW=1641, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1793, PETRI_PLACES=493, PETRI_TRANSITIONS=533} [2024-11-10 14:34:20,428 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 79 predicate places. [2024-11-10 14:34:20,428 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 533 transitions, 1793 flow [2024-11-10 14:34:20,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 384.04347826086956) internal successors, (8833), 23 states have internal predecessors, (8833), 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) [2024-11-10 14:34:20,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:20,431 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:20,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:34:20,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:20,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:20,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:20,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1204004138, now seen corresponding path program 2 times [2024-11-10 14:34:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:20,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151434805] [2024-11-10 14:34:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:20,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:20,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:34:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:20,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:34:20,708 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:34:20,708 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-10 14:34:20,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-10 14:34:20,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-10 14:34:20,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-10 14:34:20,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-10 14:34:20,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-10 14:34:20,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-10 14:34:20,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-10 14:34:20,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-10 14:34:20,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-10 14:34:20,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-10 14:34:20,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:34:20,713 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-10 14:34:20,716 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:34:20,716 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:34:20,802 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:34:20,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 519 places, 578 transitions, 1172 flow [2024-11-10 14:34:20,989 INFO L124 PetriNetUnfolderBase]: 126/1093 cut-off events. [2024-11-10 14:34:20,989 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:34:21,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1093 events. 126/1093 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6307 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 704. Up to 12 conditions per place. [2024-11-10 14:34:21,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 519 places, 578 transitions, 1172 flow [2024-11-10 14:34:21,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 519 places, 578 transitions, 1172 flow [2024-11-10 14:34:21,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:21,022 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;@2a90ddad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:21,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-10 14:34:21,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:21,032 INFO L124 PetriNetUnfolderBase]: 8/140 cut-off events. [2024-11-10 14:34:21,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:21,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:21,033 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, 1] [2024-11-10 14:34:21,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:21,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -980338583, now seen corresponding path program 1 times [2024-11-10 14:34:21,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:21,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956430090] [2024-11-10 14:34:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:21,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956430090] [2024-11-10 14:34:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956430090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:21,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:21,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281393710] [2024-11-10 14:34:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:21,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:21,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 578 [2024-11-10 14:34:21,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 578 transitions, 1172 flow. Second operand has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 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) [2024-11-10 14:34:21,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:21,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 578 [2024-11-10 14:34:21,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:24,062 INFO L124 PetriNetUnfolderBase]: 2695/19816 cut-off events. [2024-11-10 14:34:24,063 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-10 14:34:24,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23786 conditions, 19816 events. 2695/19816 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 263467 event pairs, 2216 based on Foata normal form. 6424/24666 useless extension candidates. Maximal degree in co-relation 21158. Up to 3898 conditions per place. [2024-11-10 14:34:24,183 INFO L140 encePairwiseOnDemand]: 524/578 looper letters, 34 selfloop transitions, 0 changer transitions 0/516 dead transitions. [2024-11-10 14:34:24,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 516 transitions, 1116 flow [2024-11-10 14:34:24,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1060 transitions. [2024-11-10 14:34:24,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.916955017301038 [2024-11-10 14:34:24,185 INFO L175 Difference]: Start difference. First operand has 519 places, 578 transitions, 1172 flow. Second operand 2 states and 1060 transitions. [2024-11-10 14:34:24,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 516 transitions, 1116 flow [2024-11-10 14:34:24,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 516 transitions, 1116 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:24,191 INFO L231 Difference]: Finished difference. Result has 512 places, 516 transitions, 1048 flow [2024-11-10 14:34:24,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=578, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1048, PETRI_PLACES=512, PETRI_TRANSITIONS=516} [2024-11-10 14:34:24,192 INFO L277 CegarLoopForPetriNet]: 519 programPoint places, -7 predicate places. [2024-11-10 14:34:24,193 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 516 transitions, 1048 flow [2024-11-10 14:34:24,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 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) [2024-11-10 14:34:24,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:24,193 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, 1, 1] [2024-11-10 14:34:24,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:34:24,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:24,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1113652960, now seen corresponding path program 1 times [2024-11-10 14:34:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:24,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886431989] [2024-11-10 14:34:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:24,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:24,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886431989] [2024-11-10 14:34:24,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886431989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:24,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:24,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876734001] [2024-11-10 14:34:24,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:24,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:24,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:24,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 578 [2024-11-10 14:34:24,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 516 transitions, 1048 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 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) [2024-11-10 14:34:24,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:24,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 578 [2024-11-10 14:34:24,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:27,739 INFO L124 PetriNetUnfolderBase]: 2887/21189 cut-off events. [2024-11-10 14:34:27,740 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-10 14:34:27,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25446 conditions, 21189 events. 2887/21189 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 285252 event pairs, 2376 based on Foata normal form. 1/19509 useless extension candidates. Maximal degree in co-relation 25441. Up to 4183 conditions per place. [2024-11-10 14:34:27,876 INFO L140 encePairwiseOnDemand]: 575/578 looper letters, 39 selfloop transitions, 2 changer transitions 0/517 dead transitions. [2024-11-10 14:34:27,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 517 transitions, 1132 flow [2024-11-10 14:34:27,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2024-11-10 14:34:27,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8546712802768166 [2024-11-10 14:34:27,879 INFO L175 Difference]: Start difference. First operand has 512 places, 516 transitions, 1048 flow. Second operand 3 states and 1482 transitions. [2024-11-10 14:34:27,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 517 transitions, 1132 flow [2024-11-10 14:34:27,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 517 transitions, 1132 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:27,885 INFO L231 Difference]: Finished difference. Result has 515 places, 517 transitions, 1060 flow [2024-11-10 14:34:27,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=578, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1060, PETRI_PLACES=515, PETRI_TRANSITIONS=517} [2024-11-10 14:34:27,886 INFO L277 CegarLoopForPetriNet]: 519 programPoint places, -4 predicate places. [2024-11-10 14:34:27,886 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 517 transitions, 1060 flow [2024-11-10 14:34:27,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 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) [2024-11-10 14:34:27,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:27,887 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:27,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:34:27,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:27,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash 375521647, now seen corresponding path program 1 times [2024-11-10 14:34:27,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:27,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943869142] [2024-11-10 14:34:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:27,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:27,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943869142] [2024-11-10 14:34:27,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943869142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:27,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772687783] [2024-11-10 14:34:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:27,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:27,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:27,947 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:27,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:34:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:28,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:28,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:28,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:28,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772687783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:28,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:28,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432974321] [2024-11-10 14:34:28,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:28,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:28,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:28,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:28,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 578 [2024-11-10 14:34:28,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 517 transitions, 1060 flow. Second operand has 10 states, 10 states have (on average 478.8) internal successors, (4788), 10 states have internal predecessors, (4788), 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) [2024-11-10 14:34:28,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:28,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 578 [2024-11-10 14:34:28,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:31,492 INFO L124 PetriNetUnfolderBase]: 2887/21198 cut-off events. [2024-11-10 14:34:31,492 INFO L125 PetriNetUnfolderBase]: For 155/159 co-relation queries the response was YES. [2024-11-10 14:34:31,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25474 conditions, 21198 events. 2887/21198 cut-off events. For 155/159 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 285381 event pairs, 2376 based on Foata normal form. 2/19519 useless extension candidates. Maximal degree in co-relation 25467. Up to 4183 conditions per place. [2024-11-10 14:34:31,642 INFO L140 encePairwiseOnDemand]: 572/578 looper letters, 43 selfloop transitions, 9 changer transitions 0/525 dead transitions. [2024-11-10 14:34:31,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 525 transitions, 1182 flow [2024-11-10 14:34:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4347 transitions. [2024-11-10 14:34:31,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8356401384083045 [2024-11-10 14:34:31,655 INFO L175 Difference]: Start difference. First operand has 515 places, 517 transitions, 1060 flow. Second operand 9 states and 4347 transitions. [2024-11-10 14:34:31,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 525 transitions, 1182 flow [2024-11-10 14:34:31,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 525 transitions, 1180 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:31,662 INFO L231 Difference]: Finished difference. Result has 525 places, 523 transitions, 1108 flow [2024-11-10 14:34:31,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=578, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1108, PETRI_PLACES=525, PETRI_TRANSITIONS=523} [2024-11-10 14:34:31,664 INFO L277 CegarLoopForPetriNet]: 519 programPoint places, 6 predicate places. [2024-11-10 14:34:31,664 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 523 transitions, 1108 flow [2024-11-10 14:34:31,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 478.8) internal successors, (4788), 10 states have internal predecessors, (4788), 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) [2024-11-10 14:34:31,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:31,673 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:31,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:34:31,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:31,874 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-10 14:34:31,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1703722803, now seen corresponding path program 2 times [2024-11-10 14:34:31,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:31,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683790441] [2024-11-10 14:34:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:31,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:31,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683790441] [2024-11-10 14:34:31,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683790441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:31,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435750571] [2024-11-10 14:34:31,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:31,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:31,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:34:31,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:34:32,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:32,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:32,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:32,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:32,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:34:32,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-10 14:34:32,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:32,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-10 14:34:32,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:32,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-10 14:34:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:34:32,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:32,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435750571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:32,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:32,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:32,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981312813] [2024-11-10 14:34:32,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:32,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:32,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:32,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:32,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 578 [2024-11-10 14:34:32,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 523 transitions, 1108 flow. Second operand has 8 states, 8 states have (on average 388.125) internal successors, (3105), 8 states have internal predecessors, (3105), 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) [2024-11-10 14:34:32,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:32,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 578 [2024-11-10 14:34:32,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand