./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.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 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:40:23,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:40:23,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:40:23,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:40:23,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:40:23,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:40:23,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:40:23,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:40:23,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:40:23,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:40:23,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:40:23,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:40:23,730 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:40:23,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:40:23,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:40:23,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:40:23,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:40:23,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:40:23,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:40:23,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:40:23,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:40:23,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:40:23,737 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:40:23,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:40:23,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:40:23,737 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:40:23,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:40:23,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:40:23,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:40:23,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:40:23,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:40:23,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:23,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:40:23,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:40:23,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:40:23,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:40:23,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:40:23,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:40:23,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:40:23,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:40:23,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:40:23,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2024-11-16 23:40:24,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:40:24,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:40:24,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:40:24,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:40:24,051 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:40:24,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-16 23:40:25,641 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:40:25,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:40:25,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-16 23:40:25,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a6d6bff7/df48ffea45fc400ea341ecbbeecfcdf5/FLAG0e0e6faaf [2024-11-16 23:40:25,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a6d6bff7/df48ffea45fc400ea341ecbbeecfcdf5 [2024-11-16 23:40:25,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:40:26,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:40:26,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:26,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:40:26,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:40:26,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:25" (1/1) ... [2024-11-16 23:40:26,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a85e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26, skipping insertion in model container [2024-11-16 23:40:26,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:25" (1/1) ... [2024-11-16 23:40:26,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:40:26,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:26,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:40:26,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:26,581 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:40:26,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26 WrapperNode [2024-11-16 23:40:26,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:26,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:26,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:40:26,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:40:26,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,641 INFO L138 Inliner]: procedures = 172, calls = 61, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 169 [2024-11-16 23:40:26,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:26,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:40:26,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:40:26,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:40:26,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,674 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:40:26,687 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:40:26,687 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:40:26,687 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:40:26,688 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (1/1) ... [2024-11-16 23:40:26,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:26,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:26,728 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) [2024-11-16 23:40:26,732 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 [2024-11-16 23:40:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:40:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:40:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:40:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:40:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:40:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:40:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:40:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:40:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-16 23:40:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:40:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:40:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:40:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:40:26,787 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:40:26,927 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:40:26,930 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:40:27,285 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L710: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:40:27,287 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L710-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-16 23:40:27,404 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:40:27,405 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:40:27,476 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:40:27,476 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:40:27,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:27 BoogieIcfgContainer [2024-11-16 23:40:27,477 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:40:27,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:40:27,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:40:27,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:40:27,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:40:25" (1/3) ... [2024-11-16 23:40:27,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b59845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:27, skipping insertion in model container [2024-11-16 23:40:27,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:26" (2/3) ... [2024-11-16 23:40:27,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b59845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:27, skipping insertion in model container [2024-11-16 23:40:27,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:27" (3/3) ... [2024-11-16 23:40:27,490 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2024-11-16 23:40:27,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:40:27,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-16 23:40:27,505 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:40:27,576 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:40:27,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 284 transitions, 575 flow [2024-11-16 23:40:27,780 INFO L124 PetriNetUnfolderBase]: 53/431 cut-off events. [2024-11-16 23:40:27,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:40:27,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 431 events. 53/431 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2038 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 245. Up to 6 conditions per place. [2024-11-16 23:40:27,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 284 transitions, 575 flow [2024-11-16 23:40:27,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 284 transitions, 575 flow [2024-11-16 23:40:27,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:27,828 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;@13efa8c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:27,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-16 23:40:27,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:27,842 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-11-16 23:40:27,842 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:27,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:27,848 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] [2024-11-16 23:40:27,848 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:27,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1273659388, now seen corresponding path program 1 times [2024-11-16 23:40:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:27,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194662222] [2024-11-16 23:40:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:28,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194662222] [2024-11-16 23:40:28,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194662222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:28,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:28,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829369988] [2024-11-16 23:40:28,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:28,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:28,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2024-11-16 23:40:28,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 284 transitions, 575 flow. Second operand has 2 states, 2 states have (on average 222.5) internal successors, (445), 2 states have internal predecessors, (445), 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) [2024-11-16 23:40:28,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:28,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2024-11-16 23:40:28,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:28,608 INFO L124 PetriNetUnfolderBase]: 171/1681 cut-off events. [2024-11-16 23:40:28,609 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:28,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 1681 events. 171/1681 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11170 event pairs, 168 based on Foata normal form. 425/1944 useless extension candidates. Maximal degree in co-relation 1884. Up to 379 conditions per place. [2024-11-16 23:40:28,628 INFO L140 encePairwiseOnDemand]: 253/284 looper letters, 28 selfloop transitions, 0 changer transitions 0/245 dead transitions. [2024-11-16 23:40:28,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 245 transitions, 553 flow [2024-11-16 23:40:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 501 transitions. [2024-11-16 23:40:28,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820422535211268 [2024-11-16 23:40:28,652 INFO L175 Difference]: Start difference. First operand has 254 places, 284 transitions, 575 flow. Second operand 2 states and 501 transitions. [2024-11-16 23:40:28,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 245 transitions, 553 flow [2024-11-16 23:40:28,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 245 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:28,665 INFO L231 Difference]: Finished difference. Result has 247 places, 245 transitions, 497 flow [2024-11-16 23:40:28,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=497, PETRI_PLACES=247, PETRI_TRANSITIONS=245} [2024-11-16 23:40:28,671 INFO L277 CegarLoopForPetriNet]: 254 programPoint places, -7 predicate places. [2024-11-16 23:40:28,673 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 245 transitions, 497 flow [2024-11-16 23:40:28,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 222.5) internal successors, (445), 2 states have internal predecessors, (445), 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) [2024-11-16 23:40:28,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:28,673 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:28,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:40:28,674 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:28,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:28,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1254714075, now seen corresponding path program 1 times [2024-11-16 23:40:28,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:28,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194330019] [2024-11-16 23:40:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:28,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:28,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194330019] [2024-11-16 23:40:28,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194330019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:28,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:28,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670213916] [2024-11-16 23:40:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:28,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:28,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:28,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:28,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 284 [2024-11-16 23:40:28,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 245 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-16 23:40:28,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:28,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 284 [2024-11-16 23:40:28,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:29,214 INFO L124 PetriNetUnfolderBase]: 229/2013 cut-off events. [2024-11-16 23:40:29,215 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:29,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2487 conditions, 2013 events. 229/2013 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 13823 event pairs, 187 based on Foata normal form. 1/1820 useless extension candidates. Maximal degree in co-relation 2483. Up to 454 conditions per place. [2024-11-16 23:40:29,229 INFO L140 encePairwiseOnDemand]: 281/284 looper letters, 44 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2024-11-16 23:40:29,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 257 transitions, 613 flow [2024-11-16 23:40:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2024-11-16 23:40:29,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.812206572769953 [2024-11-16 23:40:29,237 INFO L175 Difference]: Start difference. First operand has 247 places, 245 transitions, 497 flow. Second operand 3 states and 692 transitions. [2024-11-16 23:40:29,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 257 transitions, 613 flow [2024-11-16 23:40:29,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 257 transitions, 613 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:29,245 INFO L231 Difference]: Finished difference. Result has 250 places, 245 transitions, 505 flow [2024-11-16 23:40:29,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=505, PETRI_PLACES=250, PETRI_TRANSITIONS=245} [2024-11-16 23:40:29,247 INFO L277 CegarLoopForPetriNet]: 254 programPoint places, -4 predicate places. [2024-11-16 23:40:29,247 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 245 transitions, 505 flow [2024-11-16 23:40:29,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-16 23:40:29,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:29,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:29,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:40:29,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:29,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -330208513, now seen corresponding path program 1 times [2024-11-16 23:40:29,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:29,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756341076] [2024-11-16 23:40:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:29,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:29,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756341076] [2024-11-16 23:40:29,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756341076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:29,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:29,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:29,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252633026] [2024-11-16 23:40:29,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:29,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:29,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:29,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:30,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 284 [2024-11-16 23:40:30,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 245 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 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) [2024-11-16 23:40:30,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:30,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 284 [2024-11-16 23:40:30,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:30,484 INFO L124 PetriNetUnfolderBase]: 349/2222 cut-off events. [2024-11-16 23:40:30,484 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-16 23:40:30,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3000 conditions, 2222 events. 349/2222 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16261 event pairs, 13 based on Foata normal form. 0/2035 useless extension candidates. Maximal degree in co-relation 2994. Up to 587 conditions per place. [2024-11-16 23:40:30,496 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 88 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2024-11-16 23:40:30,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 292 transitions, 785 flow [2024-11-16 23:40:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1312 transitions. [2024-11-16 23:40:30,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699530516431925 [2024-11-16 23:40:30,501 INFO L175 Difference]: Start difference. First operand has 250 places, 245 transitions, 505 flow. Second operand 6 states and 1312 transitions. [2024-11-16 23:40:30,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 292 transitions, 785 flow [2024-11-16 23:40:30,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 292 transitions, 781 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:30,510 INFO L231 Difference]: Finished difference. Result has 252 places, 244 transitions, 509 flow [2024-11-16 23:40:30,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=509, PETRI_PLACES=252, PETRI_TRANSITIONS=244} [2024-11-16 23:40:30,511 INFO L277 CegarLoopForPetriNet]: 254 programPoint places, -2 predicate places. [2024-11-16 23:40:30,512 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 244 transitions, 509 flow [2024-11-16 23:40:30,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 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) [2024-11-16 23:40:30,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:30,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:30,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:40:30,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:30,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 579304105, now seen corresponding path program 1 times [2024-11-16 23:40:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783407978] [2024-11-16 23:40:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:30,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:30,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783407978] [2024-11-16 23:40:30,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783407978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:30,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:30,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185516946] [2024-11-16 23:40:30,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:30,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:30,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:30,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:30,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:30,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2024-11-16 23:40:30,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 244 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2024-11-16 23:40:30,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:30,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2024-11-16 23:40:30,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:31,168 INFO L124 PetriNetUnfolderBase]: 596/3939 cut-off events. [2024-11-16 23:40:31,168 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:40:31,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5198 conditions, 3939 events. 596/3939 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 33380 event pairs, 110 based on Foata normal form. 0/3573 useless extension candidates. Maximal degree in co-relation 5192. Up to 735 conditions per place. [2024-11-16 23:40:31,190 INFO L140 encePairwiseOnDemand]: 269/284 looper letters, 68 selfloop transitions, 10 changer transitions 0/277 dead transitions. [2024-11-16 23:40:31,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 277 transitions, 734 flow [2024-11-16 23:40:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 695 transitions. [2024-11-16 23:40:31,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8157276995305164 [2024-11-16 23:40:31,192 INFO L175 Difference]: Start difference. First operand has 252 places, 244 transitions, 509 flow. Second operand 3 states and 695 transitions. [2024-11-16 23:40:31,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 277 transitions, 734 flow [2024-11-16 23:40:31,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 277 transitions, 724 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:31,198 INFO L231 Difference]: Finished difference. Result has 249 places, 250 transitions, 573 flow [2024-11-16 23:40:31,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=249, PETRI_TRANSITIONS=250} [2024-11-16 23:40:31,199 INFO L277 CegarLoopForPetriNet]: 254 programPoint places, -5 predicate places. [2024-11-16 23:40:31,199 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 250 transitions, 573 flow [2024-11-16 23:40:31,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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) [2024-11-16 23:40:31,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:31,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:31,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:40:31,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:31,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash -814101442, now seen corresponding path program 1 times [2024-11-16 23:40:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405331332] [2024-11-16 23:40:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:31,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:31,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405331332] [2024-11-16 23:40:31,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405331332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:31,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:31,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:31,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028910573] [2024-11-16 23:40:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:31,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:31,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:31,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:31,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:31,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 284 [2024-11-16 23:40:31,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 250 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2024-11-16 23:40:31,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:31,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 284 [2024-11-16 23:40:31,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:31,770 INFO L124 PetriNetUnfolderBase]: 592/3983 cut-off events. [2024-11-16 23:40:31,771 INFO L125 PetriNetUnfolderBase]: For 412/416 co-relation queries the response was YES. [2024-11-16 23:40:31,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5616 conditions, 3983 events. 592/3983 cut-off events. For 412/416 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 33781 event pairs, 409 based on Foata normal form. 4/3621 useless extension candidates. Maximal degree in co-relation 5609. Up to 1109 conditions per place. [2024-11-16 23:40:31,796 INFO L140 encePairwiseOnDemand]: 277/284 looper letters, 57 selfloop transitions, 8 changer transitions 0/271 dead transitions. [2024-11-16 23:40:31,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 271 transitions, 761 flow [2024-11-16 23:40:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2024-11-16 23:40:31,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8086854460093896 [2024-11-16 23:40:31,799 INFO L175 Difference]: Start difference. First operand has 249 places, 250 transitions, 573 flow. Second operand 3 states and 689 transitions. [2024-11-16 23:40:31,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 271 transitions, 761 flow [2024-11-16 23:40:31,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 271 transitions, 735 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:31,810 INFO L231 Difference]: Finished difference. Result has 251 places, 257 transitions, 625 flow [2024-11-16 23:40:31,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=625, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2024-11-16 23:40:31,812 INFO L277 CegarLoopForPetriNet]: 254 programPoint places, -3 predicate places. [2024-11-16 23:40:31,813 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 625 flow [2024-11-16 23:40:31,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 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) [2024-11-16 23:40:31,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:31,814 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:31,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:40:31,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:31,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:31,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1489832655, now seen corresponding path program 1 times [2024-11-16 23:40:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:31,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153664718] [2024-11-16 23:40:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:31,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:40:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:31,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:40:31,895 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:40:31,897 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-16 23:40:31,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-16 23:40:31,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-16 23:40:31,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-16 23:40:31,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-16 23:40:31,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-16 23:40:31,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-16 23:40:31,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-16 23:40:31,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-16 23:40:31,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-16 23:40:31,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-16 23:40:31,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-16 23:40:31,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-16 23:40:31,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-16 23:40:31,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-16 23:40:31,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-16 23:40:31,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-16 23:40:31,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-16 23:40:31,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-16 23:40:31,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-16 23:40:31,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-16 23:40:31,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-16 23:40:31,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-16 23:40:31,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:40:31,906 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 23:40:31,908 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:40:31,909 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:40:31,952 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:40:31,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 340 places, 381 transitions, 778 flow [2024-11-16 23:40:32,046 INFO L124 PetriNetUnfolderBase]: 88/704 cut-off events. [2024-11-16 23:40:32,047 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:40:32,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 704 events. 88/704 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3608 event pairs, 0 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 433. Up to 9 conditions per place. [2024-11-16 23:40:32,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 340 places, 381 transitions, 778 flow [2024-11-16 23:40:32,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 340 places, 381 transitions, 778 flow [2024-11-16 23:40:32,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:32,076 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;@13efa8c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:32,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-16 23:40:32,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:32,081 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-11-16 23:40:32,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:32,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:32,082 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] [2024-11-16 23:40:32,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:40:32,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:32,083 INFO L85 PathProgramCache]: Analyzing trace with hash -129820644, now seen corresponding path program 1 times [2024-11-16 23:40:32,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:32,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882422466] [2024-11-16 23:40:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:32,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:32,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882422466] [2024-11-16 23:40:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882422466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207922276] [2024-11-16 23:40:32,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:32,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:32,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:32,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:32,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 381 [2024-11-16 23:40:32,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 381 transitions, 778 flow. Second operand has 2 states, 2 states have (on average 293.5) internal successors, (587), 2 states have internal predecessors, (587), 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) [2024-11-16 23:40:32,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:32,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 381 [2024-11-16 23:40:32,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:35,781 INFO L124 PetriNetUnfolderBase]: 4723/23935 cut-off events. [2024-11-16 23:40:35,781 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-16 23:40:35,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31498 conditions, 23935 events. 4723/23935 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 289637 event pairs, 4716 based on Foata normal form. 8226/30015 useless extension candidates. Maximal degree in co-relation 29209. Up to 7490 conditions per place. [2024-11-16 23:40:35,966 INFO L140 encePairwiseOnDemand]: 338/381 looper letters, 42 selfloop transitions, 0 changer transitions 0/330 dead transitions. [2024-11-16 23:40:35,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 330 transitions, 760 flow [2024-11-16 23:40:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:35,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 669 transitions. [2024-11-16 23:40:35,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8779527559055118 [2024-11-16 23:40:35,969 INFO L175 Difference]: Start difference. First operand has 340 places, 381 transitions, 778 flow. Second operand 2 states and 669 transitions. [2024-11-16 23:40:35,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 330 transitions, 760 flow [2024-11-16 23:40:35,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 330 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:35,975 INFO L231 Difference]: Finished difference. Result has 333 places, 330 transitions, 676 flow [2024-11-16 23:40:35,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=676, PETRI_PLACES=333, PETRI_TRANSITIONS=330} [2024-11-16 23:40:35,978 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -7 predicate places. [2024-11-16 23:40:35,978 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 330 transitions, 676 flow [2024-11-16 23:40:35,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 293.5) internal successors, (587), 2 states have internal predecessors, (587), 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) [2024-11-16 23:40:35,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:35,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:35,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:40:35,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:40:35,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:35,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1812921726, now seen corresponding path program 1 times [2024-11-16 23:40:35,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:35,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333797194] [2024-11-16 23:40:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:35,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:36,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333797194] [2024-11-16 23:40:36,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333797194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:36,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:36,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:36,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936019221] [2024-11-16 23:40:36,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:36,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:36,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 381 [2024-11-16 23:40:36,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 330 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2024-11-16 23:40:36,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:36,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 381 [2024-11-16 23:40:36,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:39,685 INFO L124 PetriNetUnfolderBase]: 6064/29891 cut-off events. [2024-11-16 23:40:39,685 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-11-16 23:40:39,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39491 conditions, 29891 events. 6064/29891 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 376756 event pairs, 2832 based on Foata normal form. 1/27334 useless extension candidates. Maximal degree in co-relation 39486. Up to 9513 conditions per place. [2024-11-16 23:40:40,046 INFO L140 encePairwiseOnDemand]: 378/381 looper letters, 59 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2024-11-16 23:40:40,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 343 transitions, 824 flow [2024-11-16 23:40:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2024-11-16 23:40:40,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8048993875765529 [2024-11-16 23:40:40,050 INFO L175 Difference]: Start difference. First operand has 333 places, 330 transitions, 676 flow. Second operand 3 states and 920 transitions. [2024-11-16 23:40:40,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 343 transitions, 824 flow [2024-11-16 23:40:40,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 343 transitions, 824 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:40,061 INFO L231 Difference]: Finished difference. Result has 336 places, 331 transitions, 688 flow [2024-11-16 23:40:40,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=336, PETRI_TRANSITIONS=331} [2024-11-16 23:40:40,064 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -4 predicate places. [2024-11-16 23:40:40,064 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 331 transitions, 688 flow [2024-11-16 23:40:40,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2024-11-16 23:40:40,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:40,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:40,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:40:40,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:40:40,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash -454776129, now seen corresponding path program 1 times [2024-11-16 23:40:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:40,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576614807] [2024-11-16 23:40:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:40,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576614807] [2024-11-16 23:40:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576614807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:40,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:40,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:40,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456017432] [2024-11-16 23:40:40,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:40,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:40,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:40,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 381 [2024-11-16 23:40:40,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 331 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2024-11-16 23:40:40,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:40,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 381 [2024-11-16 23:40:40,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:45,617 INFO L124 PetriNetUnfolderBase]: 9377/39145 cut-off events. [2024-11-16 23:40:45,618 INFO L125 PetriNetUnfolderBase]: For 336/336 co-relation queries the response was YES. [2024-11-16 23:40:45,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54166 conditions, 39145 events. 9377/39145 cut-off events. For 336/336 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 494997 event pairs, 4362 based on Foata normal form. 0/35613 useless extension candidates. Maximal degree in co-relation 54159. Up to 11851 conditions per place. [2024-11-16 23:40:45,871 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 150 selfloop transitions, 6 changer transitions 0/426 dead transitions. [2024-11-16 23:40:45,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 426 transitions, 1190 flow [2024-11-16 23:40:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1800 transitions. [2024-11-16 23:40:45,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7874015748031497 [2024-11-16 23:40:45,877 INFO L175 Difference]: Start difference. First operand has 336 places, 331 transitions, 688 flow. Second operand 6 states and 1800 transitions. [2024-11-16 23:40:45,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 426 transitions, 1190 flow [2024-11-16 23:40:45,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 426 transitions, 1188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:40:45,888 INFO L231 Difference]: Finished difference. Result has 339 places, 330 transitions, 696 flow [2024-11-16 23:40:45,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=696, PETRI_PLACES=339, PETRI_TRANSITIONS=330} [2024-11-16 23:40:45,890 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -1 predicate places. [2024-11-16 23:40:45,891 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 330 transitions, 696 flow [2024-11-16 23:40:45,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2024-11-16 23:40:45,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:45,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:45,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:40:45,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:40:45,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:45,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1981947126, now seen corresponding path program 1 times [2024-11-16 23:40:45,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:45,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126167621] [2024-11-16 23:40:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:45,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126167621] [2024-11-16 23:40:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126167621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384809548] [2024-11-16 23:40:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:45,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:45,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:45,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:45,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 381 [2024-11-16 23:40:45,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 330 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 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) [2024-11-16 23:40:45,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:45,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 381 [2024-11-16 23:40:45,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:58,930 INFO L124 PetriNetUnfolderBase]: 30965/112391 cut-off events. [2024-11-16 23:40:58,931 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-16 23:40:59,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160930 conditions, 112391 events. 30965/112391 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1595. Compared 1614230 event pairs, 10342 based on Foata normal form. 0/100672 useless extension candidates. Maximal degree in co-relation 160923. Up to 26160 conditions per place. [2024-11-16 23:40:59,590 INFO L140 encePairwiseOnDemand]: 356/381 looper letters, 108 selfloop transitions, 18 changer transitions 0/389 dead transitions. [2024-11-16 23:40:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 389 transitions, 1077 flow [2024-11-16 23:40:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2024-11-16 23:40:59,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8171478565179353 [2024-11-16 23:40:59,597 INFO L175 Difference]: Start difference. First operand has 339 places, 330 transitions, 696 flow. Second operand 3 states and 934 transitions. [2024-11-16 23:40:59,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 389 transitions, 1077 flow [2024-11-16 23:40:59,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 389 transitions, 1065 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:59,605 INFO L231 Difference]: Finished difference. Result has 338 places, 348 transitions, 842 flow [2024-11-16 23:40:59,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=338, PETRI_TRANSITIONS=348} [2024-11-16 23:40:59,607 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -2 predicate places. [2024-11-16 23:40:59,607 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 348 transitions, 842 flow [2024-11-16 23:40:59,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 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) [2024-11-16 23:40:59,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:59,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:40:59,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:40:59,608 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:40:59,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1055495494, now seen corresponding path program 1 times [2024-11-16 23:40:59,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:59,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044590561] [2024-11-16 23:40:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:40:59,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044590561] [2024-11-16 23:40:59,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044590561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:59,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:59,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765291984] [2024-11-16 23:40:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:59,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:59,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:59,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:59,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 381 [2024-11-16 23:40:59,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 348 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 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) [2024-11-16 23:40:59,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:59,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 381 [2024-11-16 23:40:59,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:14,448 INFO L124 PetriNetUnfolderBase]: 30282/124693 cut-off events. [2024-11-16 23:41:14,448 INFO L125 PetriNetUnfolderBase]: For 20081/20632 co-relation queries the response was YES. [2024-11-16 23:41:14,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191530 conditions, 124693 events. 30282/124693 cut-off events. For 20081/20632 co-relation queries the response was YES. Maximal size of possible extension queue 1752. Compared 1881547 event pairs, 21310 based on Foata normal form. 148/113540 useless extension candidates. Maximal degree in co-relation 191522. Up to 42544 conditions per place. [2024-11-16 23:41:15,293 INFO L140 encePairwiseOnDemand]: 370/381 looper letters, 94 selfloop transitions, 18 changer transitions 0/392 dead transitions. [2024-11-16 23:41:15,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 392 transitions, 1204 flow [2024-11-16 23:41:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-11-16 23:41:15,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8101487314085739 [2024-11-16 23:41:15,297 INFO L175 Difference]: Start difference. First operand has 338 places, 348 transitions, 842 flow. Second operand 3 states and 926 transitions. [2024-11-16 23:41:15,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 392 transitions, 1204 flow [2024-11-16 23:41:15,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 392 transitions, 1154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:15,358 INFO L231 Difference]: Finished difference. Result has 340 places, 364 transitions, 972 flow [2024-11-16 23:41:15,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=340, PETRI_TRANSITIONS=364} [2024-11-16 23:41:15,360 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, 0 predicate places. [2024-11-16 23:41:15,360 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 364 transitions, 972 flow [2024-11-16 23:41:15,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 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) [2024-11-16 23:41:15,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:15,361 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:15,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:41:15,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:41:15,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash 434494962, now seen corresponding path program 1 times [2024-11-16 23:41:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:15,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138642371] [2024-11-16 23:41:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:15,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:15,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138642371] [2024-11-16 23:41:15,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138642371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064280263] [2024-11-16 23:41:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:15,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:15,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:41:15,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:41:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:15,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:41:15,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:15,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:15,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064280263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:15,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:15,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:41:15,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943340141] [2024-11-16 23:41:15,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:15,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:41:15,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:15,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:41:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:41:15,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 381 [2024-11-16 23:41:15,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 364 transitions, 972 flow. Second operand has 10 states, 10 states have (on average 285.5) internal successors, (2855), 10 states have internal predecessors, (2855), 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) [2024-11-16 23:41:15,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:15,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 381 [2024-11-16 23:41:15,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:17,184 INFO L124 PetriNetUnfolderBase]: 2077/8881 cut-off events. [2024-11-16 23:41:17,184 INFO L125 PetriNetUnfolderBase]: For 839/843 co-relation queries the response was YES. [2024-11-16 23:41:17,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13223 conditions, 8881 events. 2077/8881 cut-off events. For 839/843 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 88382 event pairs, 195 based on Foata normal form. 302/8808 useless extension candidates. Maximal degree in co-relation 13214. Up to 1486 conditions per place. [2024-11-16 23:41:17,218 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 138 selfloop transitions, 7 changer transitions 0/349 dead transitions. [2024-11-16 23:41:17,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 349 transitions, 1134 flow [2024-11-16 23:41:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:41:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:41:17,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2694 transitions. [2024-11-16 23:41:17,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7856517935258093 [2024-11-16 23:41:17,224 INFO L175 Difference]: Start difference. First operand has 340 places, 364 transitions, 972 flow. Second operand 9 states and 2694 transitions. [2024-11-16 23:41:17,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 349 transitions, 1134 flow [2024-11-16 23:41:17,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 349 transitions, 1114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:17,234 INFO L231 Difference]: Finished difference. Result has 236 places, 239 transitions, 618 flow [2024-11-16 23:41:17,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=236, PETRI_TRANSITIONS=239} [2024-11-16 23:41:17,235 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -104 predicate places. [2024-11-16 23:41:17,236 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 239 transitions, 618 flow [2024-11-16 23:41:17,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 285.5) internal successors, (2855), 10 states have internal predecessors, (2855), 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) [2024-11-16 23:41:17,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:17,238 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:17,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:41:17,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 23:41:17,439 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:41:17,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1069780722, now seen corresponding path program 1 times [2024-11-16 23:41:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448948692] [2024-11-16 23:41:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:17,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:41:17,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448948692] [2024-11-16 23:41:17,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448948692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:17,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:17,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:17,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104165906] [2024-11-16 23:41:17,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:17,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:17,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:17,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:17,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:17,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 381 [2024-11-16 23:41:17,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 239 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 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) [2024-11-16 23:41:17,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:17,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 381 [2024-11-16 23:41:17,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:17,809 INFO L124 PetriNetUnfolderBase]: 494/3164 cut-off events. [2024-11-16 23:41:17,809 INFO L125 PetriNetUnfolderBase]: For 633/654 co-relation queries the response was YES. [2024-11-16 23:41:17,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4894 conditions, 3164 events. 494/3164 cut-off events. For 633/654 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 25406 event pairs, 318 based on Foata normal form. 7/2896 useless extension candidates. Maximal degree in co-relation 4885. Up to 933 conditions per place. [2024-11-16 23:41:17,828 INFO L140 encePairwiseOnDemand]: 373/381 looper letters, 60 selfloop transitions, 12 changer transitions 0/259 dead transitions. [2024-11-16 23:41:17,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 259 transitions, 818 flow [2024-11-16 23:41:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2024-11-16 23:41:17,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7769028871391076 [2024-11-16 23:41:17,831 INFO L175 Difference]: Start difference. First operand has 236 places, 239 transitions, 618 flow. Second operand 3 states and 888 transitions. [2024-11-16 23:41:17,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 259 transitions, 818 flow [2024-11-16 23:41:17,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 259 transitions, 803 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-16 23:41:17,837 INFO L231 Difference]: Finished difference. Result has 235 places, 247 transitions, 701 flow [2024-11-16 23:41:17,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=701, PETRI_PLACES=235, PETRI_TRANSITIONS=247} [2024-11-16 23:41:17,838 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -105 predicate places. [2024-11-16 23:41:17,838 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 247 transitions, 701 flow [2024-11-16 23:41:17,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 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) [2024-11-16 23:41:17,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:17,839 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:17,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:41:17,840 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:41:17,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:17,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2075532961, now seen corresponding path program 1 times [2024-11-16 23:41:17,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:17,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819902469] [2024-11-16 23:41:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:17,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:17,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:17,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819902469] [2024-11-16 23:41:17,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819902469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:17,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:17,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:17,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757650057] [2024-11-16 23:41:17,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:17,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:17,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:17,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:17,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:17,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 381 [2024-11-16 23:41:17,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 247 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 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) [2024-11-16 23:41:17,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:17,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 381 [2024-11-16 23:41:17,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:18,245 INFO L124 PetriNetUnfolderBase]: 531/3273 cut-off events. [2024-11-16 23:41:18,245 INFO L125 PetriNetUnfolderBase]: For 1735/1800 co-relation queries the response was YES. [2024-11-16 23:41:18,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5499 conditions, 3273 events. 531/3273 cut-off events. For 1735/1800 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 26713 event pairs, 314 based on Foata normal form. 21/3054 useless extension candidates. Maximal degree in co-relation 5490. Up to 999 conditions per place. [2024-11-16 23:41:18,263 INFO L140 encePairwiseOnDemand]: 373/381 looper letters, 67 selfloop transitions, 12 changer transitions 0/268 dead transitions. [2024-11-16 23:41:18,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 268 transitions, 938 flow [2024-11-16 23:41:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2024-11-16 23:41:18,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2024-11-16 23:41:18,267 INFO L175 Difference]: Start difference. First operand has 235 places, 247 transitions, 701 flow. Second operand 3 states and 889 transitions. [2024-11-16 23:41:18,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 268 transitions, 938 flow [2024-11-16 23:41:18,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 268 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:18,274 INFO L231 Difference]: Finished difference. Result has 237 places, 255 transitions, 787 flow [2024-11-16 23:41:18,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=237, PETRI_TRANSITIONS=255} [2024-11-16 23:41:18,274 INFO L277 CegarLoopForPetriNet]: 340 programPoint places, -103 predicate places. [2024-11-16 23:41:18,275 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 255 transitions, 787 flow [2024-11-16 23:41:18,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 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) [2024-11-16 23:41:18,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:18,276 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 23:41:18,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:41:18,276 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-16 23:41:18,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2072575139, now seen corresponding path program 1 times [2024-11-16 23:41:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:18,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424656519] [2024-11-16 23:41:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:18,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:18,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:41:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:18,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:41:18,331 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-16 23:41:18,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-16 23:41:18,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-16 23:41:18,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-16 23:41:18,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-16 23:41:18,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:41:18,336 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:18,336 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:41:18,336 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:41:18,372 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 23:41:18,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 478 transitions, 983 flow [2024-11-16 23:41:18,560 INFO L124 PetriNetUnfolderBase]: 128/1024 cut-off events. [2024-11-16 23:41:18,561 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-16 23:41:18,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 1024 events. 128/1024 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5419 event pairs, 1 based on Foata normal form. 0/840 useless extension candidates. Maximal degree in co-relation 712. Up to 16 conditions per place. [2024-11-16 23:41:18,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 478 transitions, 983 flow [2024-11-16 23:41:18,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 478 transitions, 983 flow [2024-11-16 23:41:18,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:18,580 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;@13efa8c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:18,580 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-16 23:41:18,584 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:18,584 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-11-16 23:41:18,584 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:18,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:18,584 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] [2024-11-16 23:41:18,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-16 23:41:18,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:18,585 INFO L85 PathProgramCache]: Analyzing trace with hash -120774948, now seen corresponding path program 1 times [2024-11-16 23:41:18,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:18,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981902612] [2024-11-16 23:41:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:18,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:18,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981902612] [2024-11-16 23:41:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981902612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:18,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992399724] [2024-11-16 23:41:18,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:18,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:41:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:18,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:41:18,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:41:18,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 478 [2024-11-16 23:41:18,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 478 transitions, 983 flow. Second operand has 2 states, 2 states have (on average 364.5) internal successors, (729), 2 states have internal predecessors, (729), 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) [2024-11-16 23:41:18,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:18,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 478 [2024-11-16 23:41:18,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand