./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.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/pthread-ext/04_incdec_cas-race.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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:06:02,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:06:02,111 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:06:02,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:06:02,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:06:02,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:06:02,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:06:02,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:06:02,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:06:02,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:06:02,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:06:02,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:06:02,142 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:06:02,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:06:02,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:06:02,143 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:06:02,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:06:02,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:06:02,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:06:02,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:06:02,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:06:02,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:06:02,147 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:06:02,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:06:02,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:06:02,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:06:02,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:06:02,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:06:02,149 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:06:02,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:06:02,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:06:02,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:06:02,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:06:02,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:06:02,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:06:02,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:06:02,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:06:02,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:06:02,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:06:02,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:06:02,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:06:02,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2024-11-10 14:06:02,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:06:02,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:06:02,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:06:02,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:06:02,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:06:02,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2024-11-10 14:06:03,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:06:03,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:06:03,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2024-11-10 14:06:03,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e129a4fb7/faf8b258e33a415a8a28e7afdd053ca2/FLAG05eedb52b [2024-11-10 14:06:04,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e129a4fb7/faf8b258e33a415a8a28e7afdd053ca2 [2024-11-10 14:06:04,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:06:04,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:06:04,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:06:04,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:06:04,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:06:04,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1679f5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04, skipping insertion in model container [2024-11-10 14:06:04,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:06:04,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:06:04,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:06:04,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:06:04,565 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:06:04,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04 WrapperNode [2024-11-10 14:06:04,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:06:04,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:06:04,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:06:04,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:06:04,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,624 INFO L138 Inliner]: procedures = 172, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 263 [2024-11-10 14:06:04,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:06:04,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:06:04,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:06:04,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:06:04,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:06:04,676 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:06:04,676 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:06:04,676 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:06:04,681 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (1/1) ... [2024-11-10 14:06:04,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:06:04,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:06:04,710 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 14:06:04,713 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 14:06:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:06:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 14:06:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:06:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:06:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:06:04,761 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 14:06:04,900 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:06:04,902 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:06:05,257 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2024-11-10 14:06:05,257 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L709-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2024-11-10 14:06:05,257 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2024-11-10 14:06:05,257 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2024-11-10 14:06:05,286 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:06:05,287 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:06:05,520 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:06:05,521 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:06:05,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:06:05 BoogieIcfgContainer [2024-11-10 14:06:05,521 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:06:05,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:06:05,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:06:05,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:06:05,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:06:04" (1/3) ... [2024-11-10 14:06:05,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cd77bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:06:05, skipping insertion in model container [2024-11-10 14:06:05,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:06:04" (2/3) ... [2024-11-10 14:06:05,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cd77bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:06:05, skipping insertion in model container [2024-11-10 14:06:05,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:06:05" (3/3) ... [2024-11-10 14:06:05,528 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2024-11-10 14:06:05,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:06:05,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-10 14:06:05,542 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:06:05,635 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:06:05,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 139 transitions, 282 flow [2024-11-10 14:06:05,729 INFO L124 PetriNetUnfolderBase]: 11/149 cut-off events. [2024-11-10 14:06:05,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:06:05,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 11/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 333 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. [2024-11-10 14:06:05,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 139 transitions, 282 flow [2024-11-10 14:06:05,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 139 transitions, 282 flow [2024-11-10 14:06:05,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:06:05,759 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;@6c99f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:06:05,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-10 14:06:05,769 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:06:05,770 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-10 14:06:05,770 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:06:05,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:05,771 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-10 14:06:05,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-10 14:06:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash -336569292, now seen corresponding path program 1 times [2024-11-10 14:06:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:05,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252479591] [2024-11-10 14:06:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:05,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:06:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:05,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:06:05,917 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:06:05,918 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-10 14:06:05,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-10 14:06:05,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-10 14:06:05,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-10 14:06:05,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-10 14:06:05,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-10 14:06:05,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-11-10 14:06:05,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-10 14:06:05,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-10 14:06:05,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-10 14:06:05,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-10 14:06:05,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-10 14:06:05,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-10 14:06:05,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-10 14:06:05,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-10 14:06:05,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-10 14:06:05,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-10 14:06:05,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-10 14:06:05,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-10 14:06:05,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-10 14:06:05,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-10 14:06:05,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-10 14:06:05,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-10 14:06:05,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-10 14:06:05,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-10 14:06:05,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-10 14:06:05,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-10 14:06:05,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-10 14:06:05,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-10 14:06:05,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-10 14:06:05,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-10 14:06:05,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-10 14:06:05,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-10 14:06:05,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-10 14:06:05,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-10 14:06:05,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-10 14:06:05,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-10 14:06:05,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:06:05,929 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 14:06:05,935 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:06:05,935 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:06:06,051 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:06:06,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 247 transitions, 504 flow [2024-11-10 14:06:06,118 INFO L124 PetriNetUnfolderBase]: 21/269 cut-off events. [2024-11-10 14:06:06,118 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:06:06,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 269 events. 21/269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1003 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 226. Up to 6 conditions per place. [2024-11-10 14:06:06,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 247 transitions, 504 flow [2024-11-10 14:06:06,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 247 transitions, 504 flow [2024-11-10 14:06:06,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:06:06,131 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;@6c99f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:06:06,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-10 14:06:06,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:06:06,138 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2024-11-10 14:06:06,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:06:06,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:06,139 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] [2024-11-10 14:06:06,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-10 14:06:06,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 368674573, now seen corresponding path program 1 times [2024-11-10 14:06:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:06,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910075232] [2024-11-10 14:06:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:06:06,252 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 14:06:06,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:06:06,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910075232] [2024-11-10 14:06:06,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910075232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:06:06,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:06:06,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:06:06,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353026405] [2024-11-10 14:06:06,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:06:06,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:06:06,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:06:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:06:06,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:06:06,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 247 [2024-11-10 14:06:06,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 247 transitions, 504 flow. Second operand has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 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 14:06:06,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:06:06,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 247 [2024-11-10 14:06:06,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:06:06,608 INFO L124 PetriNetUnfolderBase]: 72/652 cut-off events. [2024-11-10 14:06:06,608 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-10 14:06:06,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 652 events. 72/652 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3684 event pairs, 20 based on Foata normal form. 82/654 useless extension candidates. Maximal degree in co-relation 201. Up to 73 conditions per place. [2024-11-10 14:06:06,617 INFO L140 encePairwiseOnDemand]: 213/247 looper letters, 14 selfloop transitions, 0 changer transitions 0/210 dead transitions. [2024-11-10 14:06:06,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 210 transitions, 458 flow [2024-11-10 14:06:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:06:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:06:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 446 transitions. [2024-11-10 14:06:06,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.902834008097166 [2024-11-10 14:06:06,632 INFO L175 Difference]: Start difference. First operand has 233 places, 247 transitions, 504 flow. Second operand 2 states and 446 transitions. [2024-11-10 14:06:06,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 210 transitions, 458 flow [2024-11-10 14:06:06,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 210 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:06:06,639 INFO L231 Difference]: Finished difference. Result has 202 places, 210 transitions, 430 flow [2024-11-10 14:06:06,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=430, PETRI_PLACES=202, PETRI_TRANSITIONS=210} [2024-11-10 14:06:06,644 INFO L277 CegarLoopForPetriNet]: 233 programPoint places, -31 predicate places. [2024-11-10 14:06:06,644 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 210 transitions, 430 flow [2024-11-10 14:06:06,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 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 14:06:06,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:06,645 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:06:06,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:06:06,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-10 14:06:06,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:06,647 INFO L85 PathProgramCache]: Analyzing trace with hash -56698773, now seen corresponding path program 1 times [2024-11-10 14:06:06,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476862306] [2024-11-10 14:06:06,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:06,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:06,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:06:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:06,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:06:06,679 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:06:06,679 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-10 14:06:06,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-10 14:06:06,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-10 14:06:06,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-10 14:06:06,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-10 14:06:06,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-10 14:06:06,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2024-11-10 14:06:06,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-10 14:06:06,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-10 14:06:06,684 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-10 14:06:06,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-10 14:06:06,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-10 14:06:06,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-10 14:06:06,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-10 14:06:06,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-10 14:06:06,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-10 14:06:06,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-10 14:06:06,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-10 14:06:06,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-10 14:06:06,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-10 14:06:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-10 14:06:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-10 14:06:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-10 14:06:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-10 14:06:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-10 14:06:06,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:06:06,693 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 14:06:06,694 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:06:06,694 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:06:06,817 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:06:06,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 355 transitions, 728 flow [2024-11-10 14:06:06,896 INFO L124 PetriNetUnfolderBase]: 31/389 cut-off events. [2024-11-10 14:06:06,897 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 14:06:06,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 389 events. 31/389 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1720 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 333. Up to 8 conditions per place. [2024-11-10 14:06:06,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 355 transitions, 728 flow [2024-11-10 14:06:06,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 355 transitions, 728 flow [2024-11-10 14:06:06,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:06:06,909 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;@6c99f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:06:06,909 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-11-10 14:06:06,913 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:06:06,913 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2024-11-10 14:06:06,913 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:06:06,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:06,913 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] [2024-11-10 14:06:06,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-10 14:06:06,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash 670981925, now seen corresponding path program 1 times [2024-11-10 14:06:06,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:06,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472766987] [2024-11-10 14:06:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:06:06,956 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 14:06:06,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:06:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472766987] [2024-11-10 14:06:06,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472766987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:06:06,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:06:06,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:06:06,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530702551] [2024-11-10 14:06:06,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:06:06,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:06:06,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:06:06,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:06:06,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:06:06,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 355 [2024-11-10 14:06:06,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 355 transitions, 728 flow. Second operand has 2 states, 2 states have (on average 285.5) internal successors, (571), 2 states have internal predecessors, (571), 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 14:06:06,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:06:06,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 355 [2024-11-10 14:06:06,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:06:07,787 INFO L124 PetriNetUnfolderBase]: 547/3447 cut-off events. [2024-11-10 14:06:07,787 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2024-11-10 14:06:07,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4116 conditions, 3447 events. 547/3447 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 31715 event pairs, 220 based on Foata normal form. 472/3442 useless extension candidates. Maximal degree in co-relation 736. Up to 548 conditions per place. [2024-11-10 14:06:07,823 INFO L140 encePairwiseOnDemand]: 305/355 looper letters, 21 selfloop transitions, 0 changer transitions 0/302 dead transitions. [2024-11-10 14:06:07,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 302 transitions, 664 flow [2024-11-10 14:06:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:06:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:06:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 639 transitions. [2024-11-10 14:06:07,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-10 14:06:07,826 INFO L175 Difference]: Start difference. First operand has 334 places, 355 transitions, 728 flow. Second operand 2 states and 639 transitions. [2024-11-10 14:06:07,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 302 transitions, 664 flow [2024-11-10 14:06:07,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 302 transitions, 662 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-10 14:06:07,831 INFO L231 Difference]: Finished difference. Result has 289 places, 302 transitions, 620 flow [2024-11-10 14:06:07,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=620, PETRI_PLACES=289, PETRI_TRANSITIONS=302} [2024-11-10 14:06:07,832 INFO L277 CegarLoopForPetriNet]: 334 programPoint places, -45 predicate places. [2024-11-10 14:06:07,832 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 302 transitions, 620 flow [2024-11-10 14:06:07,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 285.5) internal successors, (571), 2 states have internal predecessors, (571), 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 14:06:07,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:07,833 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] [2024-11-10 14:06:07,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:06:07,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-10 14:06:07,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:07,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1700620400, now seen corresponding path program 1 times [2024-11-10 14:06:07,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:07,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779888529] [2024-11-10 14:06:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:07,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:06:08,178 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 14:06:08,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:06:08,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779888529] [2024-11-10 14:06:08,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779888529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:06:08,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:06:08,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:06:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395219967] [2024-11-10 14:06:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:06:08,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:06:08,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:06:08,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:06:08,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:06:08,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 355 [2024-11-10 14:06:08,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 302 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 248.16666666666666) internal successors, (1489), 6 states have internal predecessors, (1489), 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 14:06:08,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:06:08,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 355 [2024-11-10 14:06:08,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:06:17,233 INFO L124 PetriNetUnfolderBase]: 25089/73353 cut-off events. [2024-11-10 14:06:17,233 INFO L125 PetriNetUnfolderBase]: For 1420/1420 co-relation queries the response was YES. [2024-11-10 14:06:17,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108987 conditions, 73353 events. 25089/73353 cut-off events. For 1420/1420 co-relation queries the response was YES. Maximal size of possible extension queue 3544. Compared 1039421 event pairs, 2316 based on Foata normal form. 0/63094 useless extension candidates. Maximal degree in co-relation 108981. Up to 12309 conditions per place. [2024-11-10 14:06:17,996 INFO L140 encePairwiseOnDemand]: 307/355 looper letters, 180 selfloop transitions, 96 changer transitions 0/520 dead transitions. [2024-11-10 14:06:17,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 520 transitions, 1648 flow [2024-11-10 14:06:17,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:06:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:06:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1764 transitions. [2024-11-10 14:06:18,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.828169014084507 [2024-11-10 14:06:18,000 INFO L175 Difference]: Start difference. First operand has 289 places, 302 transitions, 620 flow. Second operand 6 states and 1764 transitions. [2024-11-10 14:06:18,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 520 transitions, 1648 flow [2024-11-10 14:06:18,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 520 transitions, 1648 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:06:18,013 INFO L231 Difference]: Finished difference. Result has 299 places, 398 transitions, 1292 flow [2024-11-10 14:06:18,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=299, PETRI_TRANSITIONS=398} [2024-11-10 14:06:18,015 INFO L277 CegarLoopForPetriNet]: 334 programPoint places, -35 predicate places. [2024-11-10 14:06:18,016 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 398 transitions, 1292 flow [2024-11-10 14:06:18,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.16666666666666) internal successors, (1489), 6 states have internal predecessors, (1489), 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 14:06:18,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:18,017 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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 14:06:18,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:06:18,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-10 14:06:18,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1631819911, now seen corresponding path program 1 times [2024-11-10 14:06:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595638584] [2024-11-10 14:06:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:18,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:06:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:06:18,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:06:18,051 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2024-11-10 14:06:18,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2024-11-10 14:06:18,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2024-11-10 14:06:18,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2024-11-10 14:06:18,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2024-11-10 14:06:18,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2024-11-10 14:06:18,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2024-11-10 14:06:18,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2024-11-10 14:06:18,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2024-11-10 14:06:18,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2024-11-10 14:06:18,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2024-11-10 14:06:18,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2024-11-10 14:06:18,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2024-11-10 14:06:18,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2024-11-10 14:06:18,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2024-11-10 14:06:18,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2024-11-10 14:06:18,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2024-11-10 14:06:18,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2024-11-10 14:06:18,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2024-11-10 14:06:18,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2024-11-10 14:06:18,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2024-11-10 14:06:18,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:06:18,064 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 14:06:18,065 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:06:18,065 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 14:06:18,420 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:06:18,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 463 transitions, 954 flow [2024-11-10 14:06:18,491 INFO L124 PetriNetUnfolderBase]: 41/509 cut-off events. [2024-11-10 14:06:18,491 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 14:06:18,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 509 events. 41/509 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2462 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 440. Up to 10 conditions per place. [2024-11-10 14:06:18,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 463 transitions, 954 flow [2024-11-10 14:06:18,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 463 transitions, 954 flow [2024-11-10 14:06:18,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:06:18,507 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;@6c99f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:06:18,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-10 14:06:18,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:06:18,510 INFO L124 PetriNetUnfolderBase]: 3/75 cut-off events. [2024-11-10 14:06:18,510 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:06:18,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:18,510 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] [2024-11-10 14:06:18,511 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-10 14:06:18,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:18,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1182754004, now seen corresponding path program 1 times [2024-11-10 14:06:18,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:18,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589689934] [2024-11-10 14:06:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:18,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:06:18,526 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 14:06:18,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:06:18,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589689934] [2024-11-10 14:06:18,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589689934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:06:18,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:06:18,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:06:18,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769509024] [2024-11-10 14:06:18,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:06:18,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:06:18,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:06:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:06:18,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:06:18,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 463 [2024-11-10 14:06:18,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 463 transitions, 954 flow. Second operand has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 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 14:06:18,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:06:18,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 463 [2024-11-10 14:06:18,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:06:21,458 INFO L124 PetriNetUnfolderBase]: 3672/18172 cut-off events. [2024-11-10 14:06:21,458 INFO L125 PetriNetUnfolderBase]: For 2166/2166 co-relation queries the response was YES. [2024-11-10 14:06:21,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22592 conditions, 18172 events. 3672/18172 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 225452 event pairs, 1720 based on Foata normal form. 2672/18132 useless extension candidates. Maximal degree in co-relation 4126. Up to 3673 conditions per place. [2024-11-10 14:06:21,692 INFO L140 encePairwiseOnDemand]: 397/463 looper letters, 28 selfloop transitions, 0 changer transitions 0/394 dead transitions. [2024-11-10 14:06:21,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 394 transitions, 872 flow [2024-11-10 14:06:21,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:06:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:06:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 832 transitions. [2024-11-10 14:06:21,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8984881209503239 [2024-11-10 14:06:21,697 INFO L175 Difference]: Start difference. First operand has 435 places, 463 transitions, 954 flow. Second operand 2 states and 832 transitions. [2024-11-10 14:06:21,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 394 transitions, 872 flow [2024-11-10 14:06:21,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 394 transitions, 866 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-10 14:06:21,709 INFO L231 Difference]: Finished difference. Result has 376 places, 394 transitions, 810 flow [2024-11-10 14:06:21,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=810, PETRI_PLACES=376, PETRI_TRANSITIONS=394} [2024-11-10 14:06:21,710 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -59 predicate places. [2024-11-10 14:06:21,710 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 394 transitions, 810 flow [2024-11-10 14:06:21,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 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 14:06:21,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:06:21,711 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] [2024-11-10 14:06:21,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:06:21,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err10ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-10 14:06:21,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:06:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash 940104443, now seen corresponding path program 1 times [2024-11-10 14:06:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:06:21,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760184867] [2024-11-10 14:06:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:06:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:06:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:06:21,978 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 14:06:21,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:06:21,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760184867] [2024-11-10 14:06:21,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760184867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:06:21,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:06:21,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:06:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773773720] [2024-11-10 14:06:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:06:21,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:06:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:06:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:06:21,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:06:22,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 463 [2024-11-10 14:06:22,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 394 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 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 14:06:22,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:06:22,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 463 [2024-11-10 14:06:22,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand