./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_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_77-tricky_address4_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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:34:27,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:34:27,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:34:27,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:34:27,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:34:27,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:34:27,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:34:27,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:34:27,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:34:27,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:34:27,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:34:27,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:34:27,720 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:34:27,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:34:27,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:34:27,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:34:27,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:34:27,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:34:27,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:34:27,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:34:27,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:34:27,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:34:27,728 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:34:27,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:34:27,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:34:27,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:34:27,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:34:27,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:34:27,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:34:27,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:34:27,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:34:27,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:27,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:34:27,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:34:27,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:34:27,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:34:27,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:34:27,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:34:27,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:34:27,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:34:27,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:34:27,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-11-10 14:34:28,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:34:28,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:34:28,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:34:28,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:34:28,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:34:28,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-10 14:34:29,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:34:29,797 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:34:29,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-10 14:34:29,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31305641e/0932170c09984ddfa16e5c534fc8dd0f/FLAGf9d154a4b [2024-11-10 14:34:29,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31305641e/0932170c09984ddfa16e5c534fc8dd0f [2024-11-10 14:34:29,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:34:29,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:34:29,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:29,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:34:29,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:34:29,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:29" (1/1) ... [2024-11-10 14:34:29,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baf07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:29, skipping insertion in model container [2024-11-10 14:34:29,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:29" (1/1) ... [2024-11-10 14:34:29,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:34:30,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:30,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:34:30,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:30,613 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:34:30,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30 WrapperNode [2024-11-10 14:34:30,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:30,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:30,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:34:30,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:34:30,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,740 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 335 [2024-11-10 14:34:30,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:30,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:34:30,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:34:30,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:34:30,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,783 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:34:30,798 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:34:30,798 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:34:30,799 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:34:30,803 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (1/1) ... [2024-11-10 14:34:30,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:30,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:30,859 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 14:34:30,862 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 14:34:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:34:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:34:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:34:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:34:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:34:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:34:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:34:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:34:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:34:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:34:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:34:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:34:30,918 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 14:34:31,097 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:34:31,101 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:34:31,541 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 14:34:31,541 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 14:34:31,733 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:34:31,733 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:34:31,796 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:34:31,796 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:34:31,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:31 BoogieIcfgContainer [2024-11-10 14:34:31,797 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:34:31,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:34:31,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:34:31,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:34:31,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:34:29" (1/3) ... [2024-11-10 14:34:31,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6377862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:31, skipping insertion in model container [2024-11-10 14:34:31,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:30" (2/3) ... [2024-11-10 14:34:31,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6377862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:31, skipping insertion in model container [2024-11-10 14:34:31,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:31" (3/3) ... [2024-11-10 14:34:31,807 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-11-10 14:34:31,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:34:31,826 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 14:34:31,827 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:34:31,956 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:34:32,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:32,177 INFO L124 PetriNetUnfolderBase]: 48/497 cut-off events. [2024-11-10 14:34:32,177 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:34:32,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 497 events. 48/497 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1715 event pairs, 0 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 256. Up to 8 conditions per place. [2024-11-10 14:34:32,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:32,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:32,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:32,231 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;@22cb7d7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:32,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-10 14:34:32,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:32,261 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-10 14:34:32,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:32,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:32,262 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:32,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:32,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2089243746, now seen corresponding path program 1 times [2024-11-10 14:34:32,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:32,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045762814] [2024-11-10 14:34:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:32,630 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 14:34:32,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:32,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045762814] [2024-11-10 14:34:32,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045762814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:32,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:32,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:32,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067687363] [2024-11-10 14:34:32,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:32,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:32,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:32,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:32,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:32,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 363 [2024-11-10 14:34:32,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 363 transitions, 733 flow. Second operand has 2 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 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 14:34:32,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:32,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 363 [2024-11-10 14:34:32,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:33,032 INFO L124 PetriNetUnfolderBase]: 77/1344 cut-off events. [2024-11-10 14:34:33,034 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:34:33,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1344 events. 77/1344 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8569 event pairs, 64 based on Foata normal form. 253/1482 useless extension candidates. Maximal degree in co-relation 1265. Up to 155 conditions per place. [2024-11-10 14:34:33,047 INFO L140 encePairwiseOnDemand]: 334/363 looper letters, 18 selfloop transitions, 0 changer transitions 1/330 dead transitions. [2024-11-10 14:34:33,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 330 transitions, 703 flow [2024-11-10 14:34:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 675 transitions. [2024-11-10 14:34:33,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9297520661157025 [2024-11-10 14:34:33,067 INFO L175 Difference]: Start difference. First operand has 333 places, 363 transitions, 733 flow. Second operand 2 states and 675 transitions. [2024-11-10 14:34:33,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 330 transitions, 703 flow [2024-11-10 14:34:33,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 330 transitions, 703 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:33,080 INFO L231 Difference]: Finished difference. Result has 330 places, 329 transitions, 665 flow [2024-11-10 14:34:33,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=665, PETRI_PLACES=330, PETRI_TRANSITIONS=329} [2024-11-10 14:34:33,089 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -3 predicate places. [2024-11-10 14:34:33,089 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 329 transitions, 665 flow [2024-11-10 14:34:33,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 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 14:34:33,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:33,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:34:33,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:33,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash -845099032, now seen corresponding path program 1 times [2024-11-10 14:34:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709525049] [2024-11-10 14:34:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:33,308 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 14:34:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:33,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709525049] [2024-11-10 14:34:33,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709525049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:33,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:33,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211367610] [2024-11-10 14:34:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:33,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:33,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 363 [2024-11-10 14:34:33,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 329 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 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 14:34:33,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:33,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 363 [2024-11-10 14:34:33,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:33,575 INFO L124 PetriNetUnfolderBase]: 85/1356 cut-off events. [2024-11-10 14:34:33,576 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:34:33,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 1356 events. 85/1356 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8735 event pairs, 72 based on Foata normal form. 1/1244 useless extension candidates. Maximal degree in co-relation 1537. Up to 178 conditions per place. [2024-11-10 14:34:33,584 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 23 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2024-11-10 14:34:33,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 330 transitions, 717 flow [2024-11-10 14:34:33,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:33,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2024-11-10 14:34:33,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8723599632690542 [2024-11-10 14:34:33,593 INFO L175 Difference]: Start difference. First operand has 330 places, 329 transitions, 665 flow. Second operand 3 states and 950 transitions. [2024-11-10 14:34:33,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 330 transitions, 717 flow [2024-11-10 14:34:33,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 330 transitions, 717 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:33,602 INFO L231 Difference]: Finished difference. Result has 332 places, 330 transitions, 677 flow [2024-11-10 14:34:33,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=332, PETRI_TRANSITIONS=330} [2024-11-10 14:34:33,605 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -1 predicate places. [2024-11-10 14:34:33,605 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 330 transitions, 677 flow [2024-11-10 14:34:33,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 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 14:34:33,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:33,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:33,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:34:33,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:33,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash -598254793, now seen corresponding path program 1 times [2024-11-10 14:34:33,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:33,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118372647] [2024-11-10 14:34:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:33,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:33,826 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 14:34:33,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:33,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118372647] [2024-11-10 14:34:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118372647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974736263] [2024-11-10 14:34:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:33,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:33,832 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 14:34:33,833 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 14:34:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:33,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:33,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:34,078 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 14:34:34,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:34,140 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 14:34:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974736263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:34,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:34,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671914961] [2024-11-10 14:34:34,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:34,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:34,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:34,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:34,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:34,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:34,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 330 transitions, 677 flow. Second operand has 10 states, 10 states have (on average 306.8) internal successors, (3068), 10 states have internal predecessors, (3068), 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 14:34:34,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:34,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:34,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:34,557 INFO L124 PetriNetUnfolderBase]: 85/1365 cut-off events. [2024-11-10 14:34:34,558 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 14:34:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1365 events. 85/1365 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8617 event pairs, 72 based on Foata normal form. 2/1254 useless extension candidates. Maximal degree in co-relation 1563. Up to 178 conditions per place. [2024-11-10 14:34:34,567 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 27 selfloop transitions, 9 changer transitions 0/338 dead transitions. [2024-11-10 14:34:34,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 338 transitions, 767 flow [2024-11-10 14:34:34,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:34,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:34,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2783 transitions. [2024-11-10 14:34:34,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2024-11-10 14:34:34,575 INFO L175 Difference]: Start difference. First operand has 332 places, 330 transitions, 677 flow. Second operand 9 states and 2783 transitions. [2024-11-10 14:34:34,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 338 transitions, 767 flow [2024-11-10 14:34:34,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 338 transitions, 765 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:34,581 INFO L231 Difference]: Finished difference. Result has 342 places, 336 transitions, 725 flow [2024-11-10 14:34:34,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=725, PETRI_PLACES=342, PETRI_TRANSITIONS=336} [2024-11-10 14:34:34,583 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 9 predicate places. [2024-11-10 14:34:34,584 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 336 transitions, 725 flow [2024-11-10 14:34:34,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 306.8) internal successors, (3068), 10 states have internal predecessors, (3068), 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 14:34:34,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:34,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:34,606 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 14:34:34,790 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 14:34:34,791 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:34,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1282604053, now seen corresponding path program 2 times [2024-11-10 14:34:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272253590] [2024-11-10 14:34:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:35,087 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 14:34:35,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:35,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272253590] [2024-11-10 14:34:35,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272253590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:35,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677659759] [2024-11-10 14:34:35,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:35,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:35,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:35,092 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 14:34:35,094 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 14:34:35,201 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:35,202 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:35,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:35,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:35,298 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 14:34:35,331 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 14:34:35,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:35,394 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 14:34:35,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:35,460 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 14:34:35,504 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 14:34:35,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:35,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677659759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:35,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:35,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853958883] [2024-11-10 14:34:35,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:35,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:35,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:35,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 363 [2024-11-10 14:34:35,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 336 transitions, 725 flow. Second operand has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 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 14:34:35,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:35,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 363 [2024-11-10 14:34:35,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:36,717 INFO L124 PetriNetUnfolderBase]: 1305/5034 cut-off events. [2024-11-10 14:34:36,717 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-10 14:34:36,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7659 conditions, 5034 events. 1305/5034 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 44108 event pairs, 1025 based on Foata normal form. 1/4581 useless extension candidates. Maximal degree in co-relation 7651. Up to 2436 conditions per place. [2024-11-10 14:34:36,747 INFO L140 encePairwiseOnDemand]: 351/363 looper letters, 127 selfloop transitions, 11 changer transitions 2/399 dead transitions. [2024-11-10 14:34:36,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 399 transitions, 1131 flow [2024-11-10 14:34:36,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:34:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:34:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2182 transitions. [2024-11-10 14:34:36,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7513774104683195 [2024-11-10 14:34:36,753 INFO L175 Difference]: Start difference. First operand has 342 places, 336 transitions, 725 flow. Second operand 8 states and 2182 transitions. [2024-11-10 14:34:36,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 399 transitions, 1131 flow [2024-11-10 14:34:36,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 399 transitions, 1125 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:36,762 INFO L231 Difference]: Finished difference. Result has 353 places, 343 transitions, 786 flow [2024-11-10 14:34:36,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=786, PETRI_PLACES=353, PETRI_TRANSITIONS=343} [2024-11-10 14:34:36,763 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 20 predicate places. [2024-11-10 14:34:36,764 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 343 transitions, 786 flow [2024-11-10 14:34:36,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 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 14:34:36,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:36,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:36,785 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 14:34:36,970 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 14:34:36,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:36,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1296091615, now seen corresponding path program 1 times [2024-11-10 14:34:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:36,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370994759] [2024-11-10 14:34:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:36,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:37,277 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 14:34:37,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370994759] [2024-11-10 14:34:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370994759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119685488] [2024-11-10 14:34:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:37,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:37,281 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 14:34:37,284 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 14:34:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:37,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:34:37,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:37,458 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 14:34:37,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:37,570 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 14:34:37,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119685488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:37,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:37,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:34:37,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098805065] [2024-11-10 14:34:37,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:37,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:34:37,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:37,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:34:37,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:34:37,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:37,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 343 transitions, 786 flow. Second operand has 18 states, 18 states have (on average 306.94444444444446) internal successors, (5525), 18 states have internal predecessors, (5525), 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 14:34:37,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:37,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:37,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:38,101 INFO L124 PetriNetUnfolderBase]: 88/1376 cut-off events. [2024-11-10 14:34:38,101 INFO L125 PetriNetUnfolderBase]: For 63/67 co-relation queries the response was YES. [2024-11-10 14:34:38,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 1376 events. 88/1376 cut-off events. For 63/67 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8850 event pairs, 74 based on Foata normal form. 4/1269 useless extension candidates. Maximal degree in co-relation 1669. Up to 175 conditions per place. [2024-11-10 14:34:38,112 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 31 selfloop transitions, 21 changer transitions 0/361 dead transitions. [2024-11-10 14:34:38,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 361 transitions, 978 flow [2024-11-10 14:34:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:34:38,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:34:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6461 transitions. [2024-11-10 14:34:38,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475665748393021 [2024-11-10 14:34:38,124 INFO L175 Difference]: Start difference. First operand has 353 places, 343 transitions, 786 flow. Second operand 21 states and 6461 transitions. [2024-11-10 14:34:38,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 361 transitions, 978 flow [2024-11-10 14:34:38,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 361 transitions, 971 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:34:38,131 INFO L231 Difference]: Finished difference. Result has 376 places, 356 transitions, 909 flow [2024-11-10 14:34:38,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=909, PETRI_PLACES=376, PETRI_TRANSITIONS=356} [2024-11-10 14:34:38,132 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 43 predicate places. [2024-11-10 14:34:38,133 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 356 transitions, 909 flow [2024-11-10 14:34:38,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 306.94444444444446) internal successors, (5525), 18 states have internal predecessors, (5525), 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 14:34:38,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:38,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:38,151 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 14:34:38,340 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 14:34:38,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:38,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1479331747, now seen corresponding path program 2 times [2024-11-10 14:34:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188586914] [2024-11-10 14:34:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:38,825 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 14:34:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188586914] [2024-11-10 14:34:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188586914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227602593] [2024-11-10 14:34:38,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:38,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:38,828 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 14:34:38,830 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 14:34:38,942 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:38,943 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:38,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:34:38,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:38,968 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 14:34:38,988 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 14:34:39,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:39,021 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 14:34:39,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:39,061 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 14:34:39,100 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 14:34:39,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:39,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227602593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:39,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:39,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:34:39,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55989161] [2024-11-10 14:34:39,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:39,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:34:39,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:39,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:34:39,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:34:39,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 363 [2024-11-10 14:34:39,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 356 transitions, 909 flow. Second operand has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 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 14:34:39,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:39,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 363 [2024-11-10 14:34:39,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:40,649 INFO L124 PetriNetUnfolderBase]: 1363/5316 cut-off events. [2024-11-10 14:34:40,650 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-10 14:34:40,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8500 conditions, 5316 events. 1363/5316 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 47018 event pairs, 1033 based on Foata normal form. 29/4907 useless extension candidates. Maximal degree in co-relation 8482. Up to 2519 conditions per place. [2024-11-10 14:34:40,684 INFO L140 encePairwiseOnDemand]: 336/363 looper letters, 107 selfloop transitions, 92 changer transitions 0/472 dead transitions. [2024-11-10 14:34:40,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 472 transitions, 1561 flow [2024-11-10 14:34:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:34:40,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:34:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1730 transitions. [2024-11-10 14:34:40,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7943067033976124 [2024-11-10 14:34:40,688 INFO L175 Difference]: Start difference. First operand has 376 places, 356 transitions, 909 flow. Second operand 6 states and 1730 transitions. [2024-11-10 14:34:40,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 472 transitions, 1561 flow [2024-11-10 14:34:40,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 472 transitions, 1537 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:34:40,701 INFO L231 Difference]: Finished difference. Result has 380 places, 440 transitions, 1493 flow [2024-11-10 14:34:40,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1493, PETRI_PLACES=380, PETRI_TRANSITIONS=440} [2024-11-10 14:34:40,703 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 47 predicate places. [2024-11-10 14:34:40,703 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 440 transitions, 1493 flow [2024-11-10 14:34:40,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 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 14:34:40,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:40,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:40,721 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 14:34:40,908 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 14:34:40,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:40,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:40,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1385355220, now seen corresponding path program 1 times [2024-11-10 14:34:40,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:40,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866481767] [2024-11-10 14:34:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:41,299 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 14:34:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:41,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866481767] [2024-11-10 14:34:41,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866481767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:41,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238154521] [2024-11-10 14:34:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:41,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:41,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:41,301 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 14:34:41,304 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 14:34:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:41,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:34:41,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:41,583 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 14:34:41,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:41,812 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 14:34:41,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238154521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:41,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:41,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:34:41,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181579122] [2024-11-10 14:34:41,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:41,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:34:41,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:41,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:34:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:34:41,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:41,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 440 transitions, 1493 flow. Second operand has 23 states, 23 states have (on average 307.04347826086956) internal successors, (7062), 23 states have internal predecessors, (7062), 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 14:34:41,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:41,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:41,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:42,670 INFO L124 PetriNetUnfolderBase]: 222/1997 cut-off events. [2024-11-10 14:34:42,670 INFO L125 PetriNetUnfolderBase]: For 523/599 co-relation queries the response was YES. [2024-11-10 14:34:42,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 1997 events. 222/1997 cut-off events. For 523/599 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14641 event pairs, 72 based on Foata normal form. 3/1859 useless extension candidates. Maximal degree in co-relation 3074. Up to 232 conditions per place. [2024-11-10 14:34:42,685 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 34 selfloop transitions, 30 changer transitions 0/457 dead transitions. [2024-11-10 14:34:42,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 457 transitions, 1743 flow [2024-11-10 14:34:42,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:34:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:34:42,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9217 transitions. [2024-11-10 14:34:42,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463728191000919 [2024-11-10 14:34:42,705 INFO L175 Difference]: Start difference. First operand has 380 places, 440 transitions, 1493 flow. Second operand 30 states and 9217 transitions. [2024-11-10 14:34:42,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 457 transitions, 1743 flow [2024-11-10 14:34:42,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 457 transitions, 1725 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:42,719 INFO L231 Difference]: Finished difference. Result has 413 places, 450 transitions, 1627 flow [2024-11-10 14:34:42,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=1475, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1627, PETRI_PLACES=413, PETRI_TRANSITIONS=450} [2024-11-10 14:34:42,721 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 80 predicate places. [2024-11-10 14:34:42,721 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 450 transitions, 1627 flow [2024-11-10 14:34:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 307.04347826086956) internal successors, (7062), 23 states have internal predecessors, (7062), 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 14:34:42,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:42,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:42,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 14:34:42,926 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 14:34:42,926 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:42,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash -790277607, now seen corresponding path program 2 times [2024-11-10 14:34:42,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:42,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781137259] [2024-11-10 14:34:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:42,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:34:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:43,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:34:43,034 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:34:43,035 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-10 14:34:43,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-10 14:34:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-10 14:34:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-10 14:34:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-10 14:34:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-10 14:34:43,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-10 14:34:43,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-10 14:34:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-10 14:34:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-10 14:34:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-10 14:34:43,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-10 14:34:43,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-10 14:34:43,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:34:43,043 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-10 14:34:43,047 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:34:43,047 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:34:43,110 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:34:43,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:43,213 INFO L124 PetriNetUnfolderBase]: 80/781 cut-off events. [2024-11-10 14:34:43,213 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-10 14:34:43,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 781 events. 80/781 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3484 event pairs, 0 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 499. Up to 12 conditions per place. [2024-11-10 14:34:43,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:43,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:43,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:43,240 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;@22cb7d7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:43,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 14:34:43,250 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:43,250 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-10 14:34:43,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:43,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:43,250 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:43,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:43,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:43,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1386786818, now seen corresponding path program 1 times [2024-11-10 14:34:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:43,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485827015] [2024-11-10 14:34:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:43,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:43,280 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 14:34:43,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:43,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485827015] [2024-11-10 14:34:43,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485827015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:43,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:43,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531014485] [2024-11-10 14:34:43,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:43,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:43,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:43,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:43,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 484 [2024-11-10 14:34:43,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 484 transitions, 984 flow. Second operand has 2 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 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 14:34:43,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:43,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 484 [2024-11-10 14:34:43,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:45,531 INFO L124 PetriNetUnfolderBase]: 1411/11298 cut-off events. [2024-11-10 14:34:45,532 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-10 14:34:45,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13493 conditions, 11298 events. 1411/11298 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 133332 event pairs, 1304 based on Foata normal form. 3521/13979 useless extension candidates. Maximal degree in co-relation 11824. Up to 2143 conditions per place. [2024-11-10 14:34:45,614 INFO L140 encePairwiseOnDemand]: 442/484 looper letters, 28 selfloop transitions, 0 changer transitions 1/436 dead transitions. [2024-11-10 14:34:45,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 436 transitions, 944 flow [2024-11-10 14:34:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 892 transitions. [2024-11-10 14:34:45,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214876033057852 [2024-11-10 14:34:45,617 INFO L175 Difference]: Start difference. First operand has 441 places, 484 transitions, 984 flow. Second operand 2 states and 892 transitions. [2024-11-10 14:34:45,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 436 transitions, 944 flow [2024-11-10 14:34:45,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 436 transitions, 944 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:45,624 INFO L231 Difference]: Finished difference. Result has 436 places, 435 transitions, 886 flow [2024-11-10 14:34:45,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=886, PETRI_PLACES=436, PETRI_TRANSITIONS=435} [2024-11-10 14:34:45,625 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -5 predicate places. [2024-11-10 14:34:45,625 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 435 transitions, 886 flow [2024-11-10 14:34:45,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 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 14:34:45,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:45,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:45,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:34:45,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:45,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:45,627 INFO L85 PathProgramCache]: Analyzing trace with hash -462333464, now seen corresponding path program 1 times [2024-11-10 14:34:45,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:45,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493280735] [2024-11-10 14:34:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:45,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:45,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:45,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:45,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493280735] [2024-11-10 14:34:45,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493280735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:45,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:45,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:45,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541188742] [2024-11-10 14:34:45,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:45,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:45,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:45,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:45,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:45,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 484 [2024-11-10 14:34:45,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 435 transitions, 886 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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 14:34:45,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:45,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 484 [2024-11-10 14:34:45,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:47,608 INFO L124 PetriNetUnfolderBase]: 1580/12281 cut-off events. [2024-11-10 14:34:47,609 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-10 14:34:47,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14743 conditions, 12281 events. 1580/12281 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 146982 event pairs, 1464 based on Foata normal form. 1/11381 useless extension candidates. Maximal degree in co-relation 14738. Up to 2408 conditions per place. [2024-11-10 14:34:47,705 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 33 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-11-10 14:34:47,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 436 transitions, 958 flow [2024-11-10 14:34:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-11-10 14:34:47,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-11-10 14:34:47,709 INFO L175 Difference]: Start difference. First operand has 436 places, 435 transitions, 886 flow. Second operand 3 states and 1251 transitions. [2024-11-10 14:34:47,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 436 transitions, 958 flow [2024-11-10 14:34:47,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 436 transitions, 958 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:47,716 INFO L231 Difference]: Finished difference. Result has 438 places, 436 transitions, 898 flow [2024-11-10 14:34:47,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=438, PETRI_TRANSITIONS=436} [2024-11-10 14:34:47,718 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -3 predicate places. [2024-11-10 14:34:47,718 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 436 transitions, 898 flow [2024-11-10 14:34:47,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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 14:34:47,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:47,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:47,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:34:47,720 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:47,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 143243959, now seen corresponding path program 1 times [2024-11-10 14:34:47,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:47,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950180800] [2024-11-10 14:34:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:47,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:47,797 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 14:34:47,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:47,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950180800] [2024-11-10 14:34:47,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950180800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024491875] [2024-11-10 14:34:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:47,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:47,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:47,800 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 14:34:47,802 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 14:34:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:47,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:47,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:47,927 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 14:34:47,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:47,958 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 14:34:47,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024491875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:47,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:47,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:47,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926367035] [2024-11-10 14:34:47,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:47,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:47,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:47,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:47,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:47,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 484 [2024-11-10 14:34:47,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 436 transitions, 898 flow. Second operand has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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 14:34:47,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:47,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 484 [2024-11-10 14:34:47,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:49,932 INFO L124 PetriNetUnfolderBase]: 1580/12290 cut-off events. [2024-11-10 14:34:49,932 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-11-10 14:34:50,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14771 conditions, 12290 events. 1580/12290 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 147107 event pairs, 1464 based on Foata normal form. 2/11391 useless extension candidates. Maximal degree in co-relation 14764. Up to 2408 conditions per place. [2024-11-10 14:34:50,063 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 37 selfloop transitions, 9 changer transitions 0/444 dead transitions. [2024-11-10 14:34:50,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 444 transitions, 1008 flow [2024-11-10 14:34:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3666 transitions. [2024-11-10 14:34:50,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415977961432507 [2024-11-10 14:34:50,073 INFO L175 Difference]: Start difference. First operand has 438 places, 436 transitions, 898 flow. Second operand 9 states and 3666 transitions. [2024-11-10 14:34:50,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 444 transitions, 1008 flow [2024-11-10 14:34:50,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 444 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:50,082 INFO L231 Difference]: Finished difference. Result has 448 places, 442 transitions, 946 flow [2024-11-10 14:34:50,083 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=946, PETRI_PLACES=448, PETRI_TRANSITIONS=442} [2024-11-10 14:34:50,084 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, 7 predicate places. [2024-11-10 14:34:50,084 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 442 transitions, 946 flow [2024-11-10 14:34:50,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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 14:34:50,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:50,087 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:50,104 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 14:34:50,287 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 14:34:50,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:50,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:50,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1786861931, now seen corresponding path program 2 times [2024-11-10 14:34:50,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:50,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633415544] [2024-11-10 14:34:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:50,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:50,452 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 14:34:50,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:50,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633415544] [2024-11-10 14:34:50,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633415544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:50,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326780854] [2024-11-10 14:34:50,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:50,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:50,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:50,457 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 14:34:50,458 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 14:34:50,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:50,573 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:50,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:50,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:50,633 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 14:34:50,660 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 14:34:50,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:50,696 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 14:34:50,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:50,746 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 14:34:50,781 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 14:34:50,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:50,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326780854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:50,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:50,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144804805] [2024-11-10 14:34:50,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:50,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:50,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:50,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:51,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 484 [2024-11-10 14:34:51,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 442 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 333.125) internal successors, (2665), 8 states have internal predecessors, (2665), 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 14:34:51,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:51,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 484 [2024-11-10 14:34:51,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand