./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:03:43,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:03:43,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:03:43,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:03:43,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:03:43,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:03:43,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:03:43,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:03:43,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:03:43,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:03:43,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:03:43,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:03:43,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:03:43,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:03:43,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:03:43,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:03:43,690 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2025-03-08 22:03:43,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:03:43,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:03:43,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:03:43,908 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:03:43,909 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:03:43,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2025-03-08 22:03:45,028 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0199d3/6655ebb15ab144f59fc2ab26dd37196f/FLAG0eff131ec [2025-03-08 22:03:45,304 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:03:45,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2025-03-08 22:03:45,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0199d3/6655ebb15ab144f59fc2ab26dd37196f/FLAG0eff131ec [2025-03-08 22:03:45,339 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c0199d3/6655ebb15ab144f59fc2ab26dd37196f [2025-03-08 22:03:45,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:03:45,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:03:45,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:03:45,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:03:45,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:03:45,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f564414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45, skipping insertion in model container [2025-03-08 22:03:45,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:03:45,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:03:45,720 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:03:45,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:03:45,836 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:03:45,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45 WrapperNode [2025-03-08 22:03:45,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:03:45,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:03:45,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:03:45,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:03:45,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,893 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 429 [2025-03-08 22:03:45,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:03:45,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:03:45,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:03:45,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:03:45,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,926 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:03:45,943 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:03:45,943 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:03:45,943 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:03:45,944 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (1/1) ... [2025-03-08 22:03:45,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:03:45,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:03:45,975 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) [2025-03-08 22:03:45,979 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 [2025-03-08 22:03:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:03:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-08 22:03:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:03:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 22:03:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 22:03:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:03:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:03:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:03:45,999 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:03:46,118 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:03:46,119 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:03:46,532 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-08 22:03:46,532 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1270-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-08 22:03:46,694 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:03:46,694 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:03:46,735 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:03:46,735 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:03:46,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:03:46 BoogieIcfgContainer [2025-03-08 22:03:46,737 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:03:46,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:03:46,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:03:46,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:03:46,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:03:45" (1/3) ... [2025-03-08 22:03:46,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ef24c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:03:46, skipping insertion in model container [2025-03-08 22:03:46,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:03:45" (2/3) ... [2025-03-08 22:03:46,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ef24c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:03:46, skipping insertion in model container [2025-03-08 22:03:46,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:03:46" (3/3) ... [2025-03-08 22:03:46,745 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2025-03-08 22:03:46,756 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:03:46,757 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_94-alloc_region_racing.i that has 2 procedures, 439 locations, 1 initial locations, 11 loop locations, and 29 error locations. [2025-03-08 22:03:46,758 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:03:46,834 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:03:46,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 468 transitions, 943 flow [2025-03-08 22:03:47,061 INFO L124 PetriNetUnfolderBase]: 44/687 cut-off events. [2025-03-08 22:03:47,062 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:03:47,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 687 events. 44/687 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2370 event pairs, 0 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 384. Up to 8 conditions per place. [2025-03-08 22:03:47,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 468 transitions, 943 flow [2025-03-08 22:03:47,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 468 transitions, 943 flow [2025-03-08 22:03:47,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:03:47,108 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;@3bb1bc01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:03:47,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2025-03-08 22:03:47,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:03:47,115 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-03-08 22:03:47,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:03:47,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:47,116 INFO L206 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] [2025-03-08 22:03:47,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:03:47,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:47,120 INFO L85 PathProgramCache]: Analyzing trace with hash -954260488, now seen corresponding path program 1 times [2025-03-08 22:03:47,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:47,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160725275] [2025-03-08 22:03:47,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:47,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:47,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-08 22:03:47,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-08 22:03:47,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:47,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:47,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:47,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160725275] [2025-03-08 22:03:47,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160725275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:47,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:47,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751938266] [2025-03-08 22:03:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:47,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:47,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:47,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:47,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:48,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 468 [2025-03-08 22:03:48,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 468 transitions, 943 flow. Second operand has 6 states, 6 states have (on average 295.3333333333333) internal successors, (1772), 6 states have internal predecessors, (1772), 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) [2025-03-08 22:03:48,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:48,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 468 [2025-03-08 22:03:48,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:50,661 INFO L124 PetriNetUnfolderBase]: 3778/14407 cut-off events. [2025-03-08 22:03:50,661 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:03:50,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21896 conditions, 14407 events. 3778/14407 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 134968 event pairs, 3600 based on Foata normal form. 1065/14336 useless extension candidates. Maximal degree in co-relation 21506. Up to 7479 conditions per place. [2025-03-08 22:03:50,733 INFO L140 encePairwiseOnDemand]: 437/468 looper letters, 141 selfloop transitions, 5 changer transitions 0/438 dead transitions. [2025-03-08 22:03:50,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 438 transitions, 1175 flow [2025-03-08 22:03:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1936 transitions. [2025-03-08 22:03:50,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6894586894586895 [2025-03-08 22:03:50,755 INFO L175 Difference]: Start difference. First operand has 442 places, 468 transitions, 943 flow. Second operand 6 states and 1936 transitions. [2025-03-08 22:03:50,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 438 transitions, 1175 flow [2025-03-08 22:03:50,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 438 transitions, 1175 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:03:50,772 INFO L231 Difference]: Finished difference. Result has 442 places, 438 transitions, 893 flow [2025-03-08 22:03:50,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=442, PETRI_TRANSITIONS=438} [2025-03-08 22:03:50,779 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 0 predicate places. [2025-03-08 22:03:50,780 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 438 transitions, 893 flow [2025-03-08 22:03:50,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.3333333333333) internal successors, (1772), 6 states have internal predecessors, (1772), 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) [2025-03-08 22:03:50,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:50,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:50,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:03:50,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:03:50,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1337988860, now seen corresponding path program 1 times [2025-03-08 22:03:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248249085] [2025-03-08 22:03:50,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:50,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 22:03:50,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 22:03:50,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:50,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:51,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:51,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248249085] [2025-03-08 22:03:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248249085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:51,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:51,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:51,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916261765] [2025-03-08 22:03:51,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:51,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:51,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:51,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:51,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:51,766 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 468 [2025-03-08 22:03:51,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 438 transitions, 893 flow. Second operand has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 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) [2025-03-08 22:03:51,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:51,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 468 [2025-03-08 22:03:51,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:53,803 INFO L124 PetriNetUnfolderBase]: 1984/12340 cut-off events. [2025-03-08 22:03:53,804 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-08 22:03:53,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16215 conditions, 12340 events. 1984/12340 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 122055 event pairs, 1166 based on Foata normal form. 0/11170 useless extension candidates. Maximal degree in co-relation 16157. Up to 3409 conditions per place. [2025-03-08 22:03:53,862 INFO L140 encePairwiseOnDemand]: 431/468 looper letters, 138 selfloop transitions, 107 changer transitions 0/583 dead transitions. [2025-03-08 22:03:53,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 583 transitions, 1676 flow [2025-03-08 22:03:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:53,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2293 transitions. [2025-03-08 22:03:53,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8165954415954416 [2025-03-08 22:03:53,869 INFO L175 Difference]: Start difference. First operand has 442 places, 438 transitions, 893 flow. Second operand 6 states and 2293 transitions. [2025-03-08 22:03:53,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 583 transitions, 1676 flow [2025-03-08 22:03:53,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 583 transitions, 1666 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:03:53,881 INFO L231 Difference]: Finished difference. Result has 446 places, 538 transitions, 1571 flow [2025-03-08 22:03:53,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1571, PETRI_PLACES=446, PETRI_TRANSITIONS=538} [2025-03-08 22:03:53,883 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 4 predicate places. [2025-03-08 22:03:53,883 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 538 transitions, 1571 flow [2025-03-08 22:03:53,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 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) [2025-03-08 22:03:53,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:53,884 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:53,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:03:53,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:03:53,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1556820666, now seen corresponding path program 1 times [2025-03-08 22:03:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465793196] [2025-03-08 22:03:53,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:53,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-08 22:03:53,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-08 22:03:53,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:53,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:54,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:54,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465793196] [2025-03-08 22:03:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465793196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:54,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:54,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:54,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584893601] [2025-03-08 22:03:54,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:54,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:54,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:54,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:54,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:54,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 468 [2025-03-08 22:03:54,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 538 transitions, 1571 flow. Second operand has 6 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 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) [2025-03-08 22:03:54,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:54,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 468 [2025-03-08 22:03:54,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:03:57,338 INFO L124 PetriNetUnfolderBase]: 5534/21076 cut-off events. [2025-03-08 22:03:57,339 INFO L125 PetriNetUnfolderBase]: For 3368/3414 co-relation queries the response was YES. [2025-03-08 22:03:57,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36250 conditions, 21076 events. 5534/21076 cut-off events. For 3368/3414 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 214603 event pairs, 3888 based on Foata normal form. 0/19214 useless extension candidates. Maximal degree in co-relation 35729. Up to 10652 conditions per place. [2025-03-08 22:03:57,422 INFO L140 encePairwiseOnDemand]: 415/468 looper letters, 277 selfloop transitions, 171 changer transitions 0/742 dead transitions. [2025-03-08 22:03:57,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 742 transitions, 3067 flow [2025-03-08 22:03:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:03:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:03:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2132 transitions. [2025-03-08 22:03:57,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2025-03-08 22:03:57,426 INFO L175 Difference]: Start difference. First operand has 446 places, 538 transitions, 1571 flow. Second operand 6 states and 2132 transitions. [2025-03-08 22:03:57,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 742 transitions, 3067 flow [2025-03-08 22:03:57,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 742 transitions, 3067 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:03:57,449 INFO L231 Difference]: Finished difference. Result has 455 places, 702 transitions, 2867 flow [2025-03-08 22:03:57,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=1569, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2867, PETRI_PLACES=455, PETRI_TRANSITIONS=702} [2025-03-08 22:03:57,450 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 13 predicate places. [2025-03-08 22:03:57,451 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 702 transitions, 2867 flow [2025-03-08 22:03:57,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 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) [2025-03-08 22:03:57,452 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:03:57,452 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:03:57,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:03:57,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:03:57,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:03:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash -931587478, now seen corresponding path program 1 times [2025-03-08 22:03:57,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:03:57,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695460029] [2025-03-08 22:03:57,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:03:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:03:57,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 22:03:57,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 22:03:57,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:03:57,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:03:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:03:57,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:03:57,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695460029] [2025-03-08 22:03:57,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695460029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:03:57,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:03:57,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:03:57,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44881989] [2025-03-08 22:03:57,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:03:57,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:03:57,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:03:57,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:03:57,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:03:58,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 468 [2025-03-08 22:03:58,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 702 transitions, 2867 flow. Second operand has 6 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 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) [2025-03-08 22:03:58,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:03:58,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 468 [2025-03-08 22:03:58,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:04:01,457 INFO L124 PetriNetUnfolderBase]: 5975/22582 cut-off events. [2025-03-08 22:04:01,457 INFO L125 PetriNetUnfolderBase]: For 7286/7344 co-relation queries the response was YES. [2025-03-08 22:04:01,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43539 conditions, 22582 events. 5975/22582 cut-off events. For 7286/7344 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 230493 event pairs, 3928 based on Foata normal form. 0/20655 useless extension candidates. Maximal degree in co-relation 42994. Up to 11147 conditions per place. [2025-03-08 22:04:01,541 INFO L140 encePairwiseOnDemand]: 415/468 looper letters, 437 selfloop transitions, 171 changer transitions 0/906 dead transitions. [2025-03-08 22:04:01,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 906 transitions, 5003 flow [2025-03-08 22:04:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:04:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:04:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2132 transitions. [2025-03-08 22:04:01,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2025-03-08 22:04:01,545 INFO L175 Difference]: Start difference. First operand has 455 places, 702 transitions, 2867 flow. Second operand 6 states and 2132 transitions. [2025-03-08 22:04:01,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 906 transitions, 5003 flow [2025-03-08 22:04:01,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 906 transitions, 4811 flow, removed 96 selfloop flow, removed 0 redundant places. [2025-03-08 22:04:01,568 INFO L231 Difference]: Finished difference. Result has 464 places, 866 transitions, 4291 flow [2025-03-08 22:04:01,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=2673, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4291, PETRI_PLACES=464, PETRI_TRANSITIONS=866} [2025-03-08 22:04:01,569 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 22 predicate places. [2025-03-08 22:04:01,570 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 866 transitions, 4291 flow [2025-03-08 22:04:01,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.6666666666667) internal successors, (1798), 6 states have internal predecessors, (1798), 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) [2025-03-08 22:04:01,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:01,571 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:04:01,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:04:01,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:04:01,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1604639203, now seen corresponding path program 1 times [2025-03-08 22:04:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:01,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930898195] [2025-03-08 22:04:01,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:04:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:01,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-08 22:04:01,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-08 22:04:01,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:04:01,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:04:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:04:01,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930898195] [2025-03-08 22:04:01,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930898195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:04:01,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:04:01,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:04:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245980355] [2025-03-08 22:04:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:04:01,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:04:01,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:04:01,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:04:01,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:04:02,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 468 [2025-03-08 22:04:02,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 866 transitions, 4291 flow. Second operand has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 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) [2025-03-08 22:04:02,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:04:02,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 468 [2025-03-08 22:04:02,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:04:05,398 INFO L124 PetriNetUnfolderBase]: 6423/23833 cut-off events. [2025-03-08 22:04:05,398 INFO L125 PetriNetUnfolderBase]: For 13476/13596 co-relation queries the response was YES. [2025-03-08 22:04:05,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51689 conditions, 23833 events. 6423/23833 cut-off events. For 13476/13596 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 244404 event pairs, 3909 based on Foata normal form. 0/21826 useless extension candidates. Maximal degree in co-relation 51064. Up to 12188 conditions per place. [2025-03-08 22:04:05,501 INFO L140 encePairwiseOnDemand]: 421/468 looper letters, 613 selfloop transitions, 166 changer transitions 0/1071 dead transitions. [2025-03-08 22:04:05,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1071 transitions, 7091 flow [2025-03-08 22:04:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:04:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:04:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2112 transitions. [2025-03-08 22:04:05,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7521367521367521 [2025-03-08 22:04:05,506 INFO L175 Difference]: Start difference. First operand has 464 places, 866 transitions, 4291 flow. Second operand 6 states and 2112 transitions. [2025-03-08 22:04:05,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 1071 transitions, 7091 flow [2025-03-08 22:04:05,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1071 transitions, 6579 flow, removed 256 selfloop flow, removed 0 redundant places. [2025-03-08 22:04:05,544 INFO L231 Difference]: Finished difference. Result has 474 places, 1031 transitions, 5697 flow [2025-03-08 22:04:05,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=3779, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5697, PETRI_PLACES=474, PETRI_TRANSITIONS=1031} [2025-03-08 22:04:05,546 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 32 predicate places. [2025-03-08 22:04:05,546 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 1031 transitions, 5697 flow [2025-03-08 22:04:05,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 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) [2025-03-08 22:04:05,547 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:05,547 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:04:05,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:04:05,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-08 22:04:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1775784113, now seen corresponding path program 1 times [2025-03-08 22:04:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:05,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602573994] [2025-03-08 22:04:05,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:04:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:05,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 22:04:05,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 22:04:05,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:04:05,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:04:05,593 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:04:05,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-08 22:04:05,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-08 22:04:05,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:04:05,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:04:05,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:04:05,651 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:04:05,651 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2025-03-08 22:04:05,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2025-03-08 22:04:05,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2025-03-08 22:04:05,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2025-03-08 22:04:05,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2025-03-08 22:04:05,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 22:04:05,657 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 22:04:05,659 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:04:05,659 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:04:05,740 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:04:05,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 594 places, 632 transitions, 1280 flow [2025-03-08 22:04:05,971 INFO L124 PetriNetUnfolderBase]: 74/1097 cut-off events. [2025-03-08 22:04:05,972 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-08 22:04:05,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 1097 events. 74/1097 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5066 event pairs, 0 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 689. Up to 12 conditions per place. [2025-03-08 22:04:05,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 594 places, 632 transitions, 1280 flow [2025-03-08 22:04:05,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 632 transitions, 1280 flow [2025-03-08 22:04:05,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:04:05,999 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;@3bb1bc01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:04:05,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-03-08 22:04:06,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:04:06,003 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-03-08 22:04:06,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:04:06,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:04:06,004 INFO L206 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] [2025-03-08 22:04:06,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-08 22:04:06,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:04:06,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1490093456, now seen corresponding path program 1 times [2025-03-08 22:04:06,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:04:06,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381511980] [2025-03-08 22:04:06,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:04:06,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:04:06,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-08 22:04:06,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-08 22:04:06,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:04:06,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:04:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:04:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:04:06,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381511980] [2025-03-08 22:04:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381511980] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:04:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:04:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:04:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941621419] [2025-03-08 22:04:06,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:04:06,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:04:06,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:04:06,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:04:06,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:04:06,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 632 [2025-03-08 22:04:06,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 632 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 394.3333333333333) internal successors, (2366), 6 states have internal predecessors, (2366), 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) [2025-03-08 22:04:06,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:04:06,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 632 [2025-03-08 22:04:06,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand