./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas.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/pthread-ext/04_incdec_cas.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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:12:43,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:12:43,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:12:43,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:12:43,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:12:43,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:12:43,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:12:43,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:12:43,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:12:43,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:12:43,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:12:43,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:12:43,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:12:43,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:12:43,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:12:43,984 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:12:43,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:12:43,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:12:43,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:12:43,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:12:43,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:12:43,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:12:43,986 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:12:43,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:12:43,987 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:12:43,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:12:43,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:12:43,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:12:43,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:12:43,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:12:43,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:12:43,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:43,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:12:43,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:12:43,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:12:43,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:12:43,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:12:43,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:12:43,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:12:43,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:12:43,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:12:43,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2024-11-16 23:12:44,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:12:44,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:12:44,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:12:44,312 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:12:44,313 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:12:44,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2024-11-16 23:12:45,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:12:46,018 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:12:46,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2024-11-16 23:12:46,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990343fe7/3dee3ba244a64bb4a7bef149b4f04e8c/FLAG3568a5145 [2024-11-16 23:12:46,045 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/990343fe7/3dee3ba244a64bb4a7bef149b4f04e8c [2024-11-16 23:12:46,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:12:46,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:12:46,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:46,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:12:46,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:12:46,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc2688d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46, skipping insertion in model container [2024-11-16 23:12:46,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:12:46,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:46,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:12:46,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:12:46,559 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:12:46,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46 WrapperNode [2024-11-16 23:12:46,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:12:46,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:46,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:12:46,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:12:46,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,632 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 267 [2024-11-16 23:12:46,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:12:46,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:12:46,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:12:46,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:12:46,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,666 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:12:46,690 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:12:46,690 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:12:46,690 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:12:46,692 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (1/1) ... [2024-11-16 23:12:46,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:12:46,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:12:46,733 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 23:12:46,739 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 23:12:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:12:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:12:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:12:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:12:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:12:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:12:46,793 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 23:12:47,031 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:12:47,035 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:12:47,512 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2024-11-16 23:12:47,513 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2024-11-16 23:12:47,513 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2024-11-16 23:12:47,513 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2024-11-16 23:12:47,535 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:12:47,535 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:12:47,919 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:12:47,920 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:12:47,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:47 BoogieIcfgContainer [2024-11-16 23:12:47,921 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:12:47,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:12:47,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:12:47,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:12:47,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:46" (1/3) ... [2024-11-16 23:12:47,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fa741e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:47, skipping insertion in model container [2024-11-16 23:12:47,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:46" (2/3) ... [2024-11-16 23:12:47,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fa741e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:47, skipping insertion in model container [2024-11-16 23:12:47,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:12:47" (3/3) ... [2024-11-16 23:12:47,932 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2024-11-16 23:12:47,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:12:47,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-16 23:12:47,952 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:12:48,081 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:48,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 124 transitions, 252 flow [2024-11-16 23:12:48,203 INFO L124 PetriNetUnfolderBase]: 10/134 cut-off events. [2024-11-16 23:12:48,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:48,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 134 events. 10/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 355 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2024-11-16 23:12:48,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 124 transitions, 252 flow [2024-11-16 23:12:48,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 124 transitions, 252 flow [2024-11-16 23:12:48,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:48,241 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;@260d7407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:48,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-16 23:12:48,255 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:48,255 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-16 23:12:48,255 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:12:48,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:48,256 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:48,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-16 23:12:48,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash 646672280, now seen corresponding path program 1 times [2024-11-16 23:12:48,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:48,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488535989] [2024-11-16 23:12:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:48,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:48,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:48,450 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:48,451 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-16 23:12:48,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-16 23:12:48,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-16 23:12:48,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-16 23:12:48,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-16 23:12:48,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-16 23:12:48,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-11-16 23:12:48,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-16 23:12:48,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-16 23:12:48,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-16 23:12:48,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-16 23:12:48,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-16 23:12:48,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-16 23:12:48,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-16 23:12:48,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-16 23:12:48,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-16 23:12:48,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-16 23:12:48,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-16 23:12:48,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-16 23:12:48,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-16 23:12:48,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-16 23:12:48,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-16 23:12:48,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:12:48,463 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:12:48,468 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:48,468 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:12:48,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:48,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 217 transitions, 444 flow [2024-11-16 23:12:48,737 INFO L124 PetriNetUnfolderBase]: 19/239 cut-off events. [2024-11-16 23:12:48,738 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:12:48,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 239 events. 19/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 923 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 196. Up to 6 conditions per place. [2024-11-16 23:12:48,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 217 transitions, 444 flow [2024-11-16 23:12:48,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 217 transitions, 444 flow [2024-11-16 23:12:48,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:48,753 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;@260d7407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:48,754 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-16 23:12:48,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:48,771 INFO L124 PetriNetUnfolderBase]: 3/77 cut-off events. [2024-11-16 23:12:48,771 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:12:48,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:48,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:48,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-16 23:12:48,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:48,773 INFO L85 PathProgramCache]: Analyzing trace with hash -181546198, now seen corresponding path program 1 times [2024-11-16 23:12:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:48,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955007831] [2024-11-16 23:12:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:48,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:49,182 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 23:12:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:49,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955007831] [2024-11-16 23:12:49,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955007831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:49,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:49,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229633727] [2024-11-16 23:12:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:49,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:49,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:49,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:49,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:49,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 217 [2024-11-16 23:12:49,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 217 transitions, 444 flow. Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 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 23:12:49,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:49,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 217 [2024-11-16 23:12:49,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:49,961 INFO L124 PetriNetUnfolderBase]: 97/735 cut-off events. [2024-11-16 23:12:49,962 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-16 23:12:49,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 735 events. 97/735 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4777 event pairs, 42 based on Foata normal form. 142/802 useless extension candidates. Maximal degree in co-relation 135. Up to 114 conditions per place. [2024-11-16 23:12:49,971 INFO L140 encePairwiseOnDemand]: 179/217 looper letters, 16 selfloop transitions, 0 changer transitions 0/176 dead transitions. [2024-11-16 23:12:49,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 176 transitions, 394 flow [2024-11-16 23:12:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 380 transitions. [2024-11-16 23:12:49,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8755760368663594 [2024-11-16 23:12:49,989 INFO L175 Difference]: Start difference. First operand has 205 places, 217 transitions, 444 flow. Second operand 2 states and 380 transitions. [2024-11-16 23:12:49,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 176 transitions, 394 flow [2024-11-16 23:12:49,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 176 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:49,997 INFO L231 Difference]: Finished difference. Result has 170 places, 176 transitions, 362 flow [2024-11-16 23:12:49,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=362, PETRI_PLACES=170, PETRI_TRANSITIONS=176} [2024-11-16 23:12:50,002 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -35 predicate places. [2024-11-16 23:12:50,003 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 176 transitions, 362 flow [2024-11-16 23:12:50,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 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 23:12:50,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:50,007 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:50,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:12:50,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-16 23:12:50,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1924862138, now seen corresponding path program 1 times [2024-11-16 23:12:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:50,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377929107] [2024-11-16 23:12:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:50,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:50,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:12:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:12:50,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:12:50,058 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:12:50,059 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-16 23:12:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-16 23:12:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-16 23:12:50,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-16 23:12:50,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-16 23:12:50,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-16 23:12:50,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2024-11-16 23:12:50,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-16 23:12:50,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-16 23:12:50,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-16 23:12:50,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-16 23:12:50,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-16 23:12:50,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-16 23:12:50,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-16 23:12:50,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-16 23:12:50,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-16 23:12:50,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-16 23:12:50,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-16 23:12:50,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-16 23:12:50,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-16 23:12:50,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-16 23:12:50,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-16 23:12:50,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-16 23:12:50,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-16 23:12:50,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-16 23:12:50,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-16 23:12:50,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-16 23:12:50,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-16 23:12:50,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-16 23:12:50,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-16 23:12:50,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-16 23:12:50,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-16 23:12:50,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-16 23:12:50,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-16 23:12:50,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-16 23:12:50,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-16 23:12:50,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-16 23:12:50,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-16 23:12:50,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-16 23:12:50,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-16 23:12:50,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-16 23:12:50,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-16 23:12:50,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:12:50,075 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 23:12:50,076 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:12:50,078 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:12:50,300 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:12:50,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 310 transitions, 638 flow [2024-11-16 23:12:50,363 INFO L124 PetriNetUnfolderBase]: 28/344 cut-off events. [2024-11-16 23:12:50,363 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:12:50,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 344 events. 28/344 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1535 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 288. Up to 8 conditions per place. [2024-11-16 23:12:50,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 310 transitions, 638 flow [2024-11-16 23:12:50,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 310 transitions, 638 flow [2024-11-16 23:12:50,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:12:50,378 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;@260d7407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:12:50,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-11-16 23:12:50,383 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:12:50,383 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2024-11-16 23:12:50,383 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:12:50,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:50,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:12:50,384 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-16 23:12:50,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1187516412, now seen corresponding path program 1 times [2024-11-16 23:12:50,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:50,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617652715] [2024-11-16 23:12:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:50,535 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 23:12:50,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:50,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617652715] [2024-11-16 23:12:50,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617652715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:50,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:50,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:12:50,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081451469] [2024-11-16 23:12:50,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:50,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:12:50,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:12:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:12:50,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 310 [2024-11-16 23:12:50,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 310 transitions, 638 flow. Second operand has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 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 23:12:50,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:50,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 310 [2024-11-16 23:12:50,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:52,118 INFO L124 PetriNetUnfolderBase]: 1077/5481 cut-off events. [2024-11-16 23:12:52,119 INFO L125 PetriNetUnfolderBase]: For 463/463 co-relation queries the response was YES. [2024-11-16 23:12:52,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6896 conditions, 5481 events. 1077/5481 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 58549 event pairs, 630 based on Foata normal form. 1108/5996 useless extension candidates. Maximal degree in co-relation 864. Up to 1192 conditions per place. [2024-11-16 23:12:52,182 INFO L140 encePairwiseOnDemand]: 254/310 looper letters, 24 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2024-11-16 23:12:52,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 251 transitions, 568 flow [2024-11-16 23:12:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:12:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:12:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 540 transitions. [2024-11-16 23:12:52,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8709677419354839 [2024-11-16 23:12:52,192 INFO L175 Difference]: Start difference. First operand has 292 places, 310 transitions, 638 flow. Second operand 2 states and 540 transitions. [2024-11-16 23:12:52,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 251 transitions, 568 flow [2024-11-16 23:12:52,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 251 transitions, 566 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:52,201 INFO L231 Difference]: Finished difference. Result has 241 places, 251 transitions, 518 flow [2024-11-16 23:12:52,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=518, PETRI_PLACES=241, PETRI_TRANSITIONS=251} [2024-11-16 23:12:52,204 INFO L277 CegarLoopForPetriNet]: 292 programPoint places, -51 predicate places. [2024-11-16 23:12:52,206 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 251 transitions, 518 flow [2024-11-16 23:12:52,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.0) internal successors, (462), 2 states have internal predecessors, (462), 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 23:12:52,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:52,207 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] [2024-11-16 23:12:52,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:12:52,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-16 23:12:52,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:52,208 INFO L85 PathProgramCache]: Analyzing trace with hash 353127375, now seen corresponding path program 1 times [2024-11-16 23:12:52,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911153530] [2024-11-16 23:12:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:52,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:52,702 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 23:12:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911153530] [2024-11-16 23:12:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911153530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:52,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:52,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:12:52,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407966224] [2024-11-16 23:12:52,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:52,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:12:52,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:52,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:12:52,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:12:53,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 310 [2024-11-16 23:12:53,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 251 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 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 23:12:53,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:53,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 310 [2024-11-16 23:12:53,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:12:58,924 INFO L124 PetriNetUnfolderBase]: 3568/13698 cut-off events. [2024-11-16 23:12:58,925 INFO L125 PetriNetUnfolderBase]: For 835/835 co-relation queries the response was YES. [2024-11-16 23:12:59,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18596 conditions, 13698 events. 3568/13698 cut-off events. For 835/835 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 169311 event pairs, 1250 based on Foata normal form. 0/12085 useless extension candidates. Maximal degree in co-relation 18590. Up to 3428 conditions per place. [2024-11-16 23:12:59,080 INFO L140 encePairwiseOnDemand]: 294/310 looper letters, 76 selfloop transitions, 33 changer transitions 0/325 dead transitions. [2024-11-16 23:12:59,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 325 transitions, 924 flow [2024-11-16 23:12:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:12:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:12:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-11-16 23:12:59,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7655913978494624 [2024-11-16 23:12:59,085 INFO L175 Difference]: Start difference. First operand has 241 places, 251 transitions, 518 flow. Second operand 6 states and 1424 transitions. [2024-11-16 23:12:59,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 325 transitions, 924 flow [2024-11-16 23:12:59,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 325 transitions, 924 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:12:59,105 INFO L231 Difference]: Finished difference. Result has 251 places, 283 transitions, 744 flow [2024-11-16 23:12:59,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=251, PETRI_TRANSITIONS=283} [2024-11-16 23:12:59,106 INFO L277 CegarLoopForPetriNet]: 292 programPoint places, -41 predicate places. [2024-11-16 23:12:59,108 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 283 transitions, 744 flow [2024-11-16 23:12:59,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 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 23:12:59,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:12:59,109 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] [2024-11-16 23:12:59,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:12:59,109 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-16 23:12:59,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:12:59,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1043535060, now seen corresponding path program 1 times [2024-11-16 23:12:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:12:59,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897625512] [2024-11-16 23:12:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:12:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:12:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:12:59,265 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 23:12:59,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:12:59,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897625512] [2024-11-16 23:12:59,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897625512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:12:59,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:12:59,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:12:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699846957] [2024-11-16 23:12:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:12:59,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:12:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:12:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:12:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:12:59,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 310 [2024-11-16 23:12:59,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 283 transitions, 744 flow. Second operand has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 23:12:59,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:12:59,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 310 [2024-11-16 23:12:59,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:03,400 INFO L124 PetriNetUnfolderBase]: 4543/18567 cut-off events. [2024-11-16 23:13:03,400 INFO L125 PetriNetUnfolderBase]: For 3078/3250 co-relation queries the response was YES. [2024-11-16 23:13:03,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28130 conditions, 18567 events. 4543/18567 cut-off events. For 3078/3250 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 240218 event pairs, 758 based on Foata normal form. 85/16331 useless extension candidates. Maximal degree in co-relation 28119. Up to 4114 conditions per place. [2024-11-16 23:13:03,612 INFO L140 encePairwiseOnDemand]: 301/310 looper letters, 104 selfloop transitions, 30 changer transitions 0/361 dead transitions. [2024-11-16 23:13:03,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 361 transitions, 1337 flow [2024-11-16 23:13:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:13:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 23:13:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1204 transitions. [2024-11-16 23:13:03,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7767741935483871 [2024-11-16 23:13:03,616 INFO L175 Difference]: Start difference. First operand has 251 places, 283 transitions, 744 flow. Second operand 5 states and 1204 transitions. [2024-11-16 23:13:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 361 transitions, 1337 flow [2024-11-16 23:13:03,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 361 transitions, 1337 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:03,628 INFO L231 Difference]: Finished difference. Result has 258 places, 312 transitions, 1044 flow [2024-11-16 23:13:03,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1044, PETRI_PLACES=258, PETRI_TRANSITIONS=312} [2024-11-16 23:13:03,629 INFO L277 CegarLoopForPetriNet]: 292 programPoint places, -34 predicate places. [2024-11-16 23:13:03,629 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 312 transitions, 1044 flow [2024-11-16 23:13:03,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 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 23:13:03,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:03,630 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:03,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:13:03,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-16 23:13:03,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash 872446869, now seen corresponding path program 1 times [2024-11-16 23:13:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195879012] [2024-11-16 23:13:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:03,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:03,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:03,674 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:03,674 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2024-11-16 23:13:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2024-11-16 23:13:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2024-11-16 23:13:03,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2024-11-16 23:13:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2024-11-16 23:13:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2024-11-16 23:13:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2024-11-16 23:13:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2024-11-16 23:13:03,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2024-11-16 23:13:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2024-11-16 23:13:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2024-11-16 23:13:03,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2024-11-16 23:13:03,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2024-11-16 23:13:03,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2024-11-16 23:13:03,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2024-11-16 23:13:03,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2024-11-16 23:13:03,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2024-11-16 23:13:03,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2024-11-16 23:13:03,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2024-11-16 23:13:03,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2024-11-16 23:13:03,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2024-11-16 23:13:03,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2024-11-16 23:13:03,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2024-11-16 23:13:03,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2024-11-16 23:13:03,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2024-11-16 23:13:03,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2024-11-16 23:13:03,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2024-11-16 23:13:03,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2024-11-16 23:13:03,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2024-11-16 23:13:03,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2024-11-16 23:13:03,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2024-11-16 23:13:03,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2024-11-16 23:13:03,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2024-11-16 23:13:03,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2024-11-16 23:13:03,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2024-11-16 23:13:03,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2024-11-16 23:13:03,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2024-11-16 23:13:03,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2024-11-16 23:13:03,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2024-11-16 23:13:03,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2024-11-16 23:13:03,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2024-11-16 23:13:03,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2024-11-16 23:13:03,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2024-11-16 23:13:03,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2024-11-16 23:13:03,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2024-11-16 23:13:03,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2024-11-16 23:13:03,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2024-11-16 23:13:03,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:13:03,690 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 23:13:03,691 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:03,691 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:13:03,874 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:03,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 403 transitions, 834 flow [2024-11-16 23:13:03,965 INFO L124 PetriNetUnfolderBase]: 37/449 cut-off events. [2024-11-16 23:13:03,966 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:13:03,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 449 events. 37/449 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2168 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 380. Up to 10 conditions per place. [2024-11-16 23:13:03,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 403 transitions, 834 flow [2024-11-16 23:13:03,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 379 places, 403 transitions, 834 flow [2024-11-16 23:13:03,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:03,983 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;@260d7407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:03,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-16 23:13:03,989 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:03,989 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2024-11-16 23:13:03,989 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:13:03,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:03,990 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:03,990 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-16 23:13:03,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:03,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1747322711, now seen corresponding path program 1 times [2024-11-16 23:13:03,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:03,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72385516] [2024-11-16 23:13:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:03,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:04,117 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 23:13:04,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:04,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72385516] [2024-11-16 23:13:04,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72385516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:04,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:04,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:13:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005191419] [2024-11-16 23:13:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:04,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:13:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:13:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:13:04,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 403 [2024-11-16 23:13:04,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 403 transitions, 834 flow. Second operand has 2 states, 2 states have (on average 298.0) internal successors, (596), 2 states have internal predecessors, (596), 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 23:13:04,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:04,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 403 [2024-11-16 23:13:04,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:11,627 INFO L124 PetriNetUnfolderBase]: 10338/41104 cut-off events. [2024-11-16 23:13:11,627 INFO L125 PetriNetUnfolderBase]: For 5804/5804 co-relation queries the response was YES. [2024-11-16 23:13:11,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54182 conditions, 41104 events. 10338/41104 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 1408. Compared 583782 event pairs, 6804 based on Foata normal form. 8556/45098 useless extension candidates. Maximal degree in co-relation 6932. Up to 11139 conditions per place. [2024-11-16 23:13:12,213 INFO L140 encePairwiseOnDemand]: 329/403 looper letters, 32 selfloop transitions, 0 changer transitions 0/326 dead transitions. [2024-11-16 23:13:12,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 326 transitions, 744 flow [2024-11-16 23:13:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:13:12,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:13:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 700 transitions. [2024-11-16 23:13:12,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8684863523573201 [2024-11-16 23:13:12,216 INFO L175 Difference]: Start difference. First operand has 379 places, 403 transitions, 834 flow. Second operand 2 states and 700 transitions. [2024-11-16 23:13:12,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 326 transitions, 744 flow [2024-11-16 23:13:12,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 326 transitions, 738 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:12,232 INFO L231 Difference]: Finished difference. Result has 312 places, 326 transitions, 674 flow [2024-11-16 23:13:12,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=674, PETRI_PLACES=312, PETRI_TRANSITIONS=326} [2024-11-16 23:13:12,233 INFO L277 CegarLoopForPetriNet]: 379 programPoint places, -67 predicate places. [2024-11-16 23:13:12,233 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 326 transitions, 674 flow [2024-11-16 23:13:12,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 298.0) internal successors, (596), 2 states have internal predecessors, (596), 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 23:13:12,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:12,235 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] [2024-11-16 23:13:12,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:13:12,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-16 23:13:12,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1569950795, now seen corresponding path program 1 times [2024-11-16 23:13:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791990959] [2024-11-16 23:13:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:12,500 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 23:13:12,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:12,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791990959] [2024-11-16 23:13:12,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791990959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:12,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:12,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895599974] [2024-11-16 23:13:12,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:12,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:12,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:12,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:12,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 403 [2024-11-16 23:13:12,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 326 transitions, 674 flow. Second operand has 6 states, 6 states have (on average 287.6666666666667) internal successors, (1726), 6 states have internal predecessors, (1726), 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 23:13:12,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:12,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 403 [2024-11-16 23:13:12,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:39,868 INFO L124 PetriNetUnfolderBase]: 35165/111949 cut-off events. [2024-11-16 23:13:39,868 INFO L125 PetriNetUnfolderBase]: For 8674/8674 co-relation queries the response was YES. [2024-11-16 23:13:41,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156299 conditions, 111949 events. 35165/111949 cut-off events. For 8674/8674 co-relation queries the response was YES. Maximal size of possible extension queue 4099. Compared 1720079 event pairs, 14517 based on Foata normal form. 0/98477 useless extension candidates. Maximal degree in co-relation 156292. Up to 32170 conditions per place. [2024-11-16 23:13:41,789 INFO L140 encePairwiseOnDemand]: 384/403 looper letters, 104 selfloop transitions, 45 changer transitions 0/432 dead transitions. [2024-11-16 23:13:41,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 432 transitions, 1244 flow [2024-11-16 23:13:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-11-16 23:13:41,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.771712158808933 [2024-11-16 23:13:41,795 INFO L175 Difference]: Start difference. First operand has 312 places, 326 transitions, 674 flow. Second operand 6 states and 1866 transitions. [2024-11-16 23:13:41,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 432 transitions, 1244 flow [2024-11-16 23:13:41,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 432 transitions, 1244 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:41,911 INFO L231 Difference]: Finished difference. Result has 322 places, 370 transitions, 978 flow [2024-11-16 23:13:41,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=978, PETRI_PLACES=322, PETRI_TRANSITIONS=370} [2024-11-16 23:13:41,912 INFO L277 CegarLoopForPetriNet]: 379 programPoint places, -57 predicate places. [2024-11-16 23:13:41,912 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 370 transitions, 978 flow [2024-11-16 23:13:41,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.6666666666667) internal successors, (1726), 6 states have internal predecessors, (1726), 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 23:13:41,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:41,914 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] [2024-11-16 23:13:41,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:13:41,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-16 23:13:41,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2034608816, now seen corresponding path program 1 times [2024-11-16 23:13:41,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:41,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76234805] [2024-11-16 23:13:41,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:42,060 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 23:13:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76234805] [2024-11-16 23:13:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76234805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:13:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416254851] [2024-11-16 23:13:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:42,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:13:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:13:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:13:42,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 403 [2024-11-16 23:13:42,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 370 transitions, 978 flow. Second operand has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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 23:13:42,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:42,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 403 [2024-11-16 23:13:42,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand