./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-deagle/airline-10.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-deagle/airline-10.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 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:47:17,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:47:17,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:47:17,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:47:17,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:47:17,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:47:17,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:47:17,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:47:17,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:47:17,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:47:17,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:47:17,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:47:17,593 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:47:17,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:47:17,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:47:17,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:47:17,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:47:17,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:47:17,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:47:17,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:47:17,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:47:17,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:47:17,603 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:47:17,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:47:17,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:47:17,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:47:17,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:47:17,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:47:17,604 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:47:17,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:47:17,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:47:17,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:47:17,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:47:17,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:47:17,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:47:17,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:47:17,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:47:17,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:47:17,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:47:17,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:47:17,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:47:17,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a [2024-11-16 23:47:17,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:47:17,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:47:17,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:47:17,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:47:17,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:47:17,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/airline-10.i [2024-11-16 23:47:19,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:47:19,530 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:47:19,531 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/airline-10.i [2024-11-16 23:47:19,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1fe49ea/53c8d4119c3f484b9a2294bacd4d22f8/FLAGba260beba [2024-11-16 23:47:19,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1fe49ea/53c8d4119c3f484b9a2294bacd4d22f8 [2024-11-16 23:47:19,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:47:19,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:47:19,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:47:19,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:47:19,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:47:19,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:19" (1/1) ... [2024-11-16 23:47:19,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d60a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:19, skipping insertion in model container [2024-11-16 23:47:19,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:19" (1/1) ... [2024-11-16 23:47:19,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:47:19,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:47:20,002 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:47:20,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:47:20,095 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:47:20,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20 WrapperNode [2024-11-16 23:47:20,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:47:20,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:47:20,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:47:20,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:47:20,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,148 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-16 23:47:20,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:47:20,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:47:20,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:47:20,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:47:20,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:47:20,191 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:47:20,192 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:47:20,192 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:47:20,193 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (1/1) ... [2024-11-16 23:47:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:47:20,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:20,234 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 23:47:20,237 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 23:47:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:47:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:47:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 23:47:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:47:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:47:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2024-11-16 23:47:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2024-11-16 23:47:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:47:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:47:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 23:47:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:47:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:47:20,294 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 23:47:20,453 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:47:20,455 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:47:20,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: havoc main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset; [2024-11-16 23:47:20,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L736-1: SUMMARY for call ULTIMATE.dealloc(main_~#salethreads~0#1.base, main_~#salethreads~0#1.offset); srcloc: null [2024-11-16 23:47:20,646 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:47:20,646 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:47:20,691 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:47:20,692 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:47:20,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:47:20 BoogieIcfgContainer [2024-11-16 23:47:20,692 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:47:20,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:47:20,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:47:20,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:47:20,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:47:19" (1/3) ... [2024-11-16 23:47:20,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334e7fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:20, skipping insertion in model container [2024-11-16 23:47:20,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:20" (2/3) ... [2024-11-16 23:47:20,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334e7fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:20, skipping insertion in model container [2024-11-16 23:47:20,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:47:20" (3/3) ... [2024-11-16 23:47:20,704 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-10.i [2024-11-16 23:47:20,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:47:20,722 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-16 23:47:20,723 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:47:20,780 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:47:20,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 101 transitions, 209 flow [2024-11-16 23:47:20,890 INFO L124 PetriNetUnfolderBase]: 11/148 cut-off events. [2024-11-16 23:47:20,890 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:47:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 11/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 305 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 72. Up to 4 conditions per place. [2024-11-16 23:47:20,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 101 transitions, 209 flow [2024-11-16 23:47:20,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 101 transitions, 209 flow [2024-11-16 23:47:20,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:47:20,915 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;@63d8ae9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:47:20,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-16 23:47:20,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:47:20,921 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-16 23:47:20,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:47:20,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:20,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:20,923 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:20,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash -668704510, now seen corresponding path program 1 times [2024-11-16 23:47:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:20,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617825903] [2024-11-16 23:47:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:20,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:21,127 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 23:47:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:21,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617825903] [2024-11-16 23:47:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617825903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:21,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:21,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:47:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112539862] [2024-11-16 23:47:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:21,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:47:21,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:47:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:47:21,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 101 [2024-11-16 23:47:21,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 101 transitions, 209 flow. Second operand has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 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 23:47:21,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:21,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 101 [2024-11-16 23:47:21,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:21,266 INFO L124 PetriNetUnfolderBase]: 3/131 cut-off events. [2024-11-16 23:47:21,266 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-16 23:47:21,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 3/131 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 9/124 useless extension candidates. Maximal degree in co-relation 66. Up to 8 conditions per place. [2024-11-16 23:47:21,270 INFO L140 encePairwiseOnDemand]: 92/101 looper letters, 7 selfloop transitions, 0 changer transitions 0/90 dead transitions. [2024-11-16 23:47:21,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 201 flow [2024-11-16 23:47:21,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:47:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:47:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2024-11-16 23:47:21,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9108910891089109 [2024-11-16 23:47:21,286 INFO L175 Difference]: Start difference. First operand has 97 places, 101 transitions, 209 flow. Second operand 2 states and 184 transitions. [2024-11-16 23:47:21,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 201 flow [2024-11-16 23:47:21,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 201 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:21,294 INFO L231 Difference]: Finished difference. Result has 91 places, 90 transitions, 187 flow [2024-11-16 23:47:21,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=187, PETRI_PLACES=91, PETRI_TRANSITIONS=90} [2024-11-16 23:47:21,306 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -6 predicate places. [2024-11-16 23:47:21,306 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 90 transitions, 187 flow [2024-11-16 23:47:21,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 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 23:47:21,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:21,308 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] [2024-11-16 23:47:21,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:47:21,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:21,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1948147323, now seen corresponding path program 1 times [2024-11-16 23:47:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934913323] [2024-11-16 23:47:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:21,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:21,449 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 23:47:21,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:21,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934913323] [2024-11-16 23:47:21,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934913323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:21,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:21,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:47:21,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599028862] [2024-11-16 23:47:21,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:21,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:21,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:21,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:21,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 101 [2024-11-16 23:47:21,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 90 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 23:47:21,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:21,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 101 [2024-11-16 23:47:21,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:21,572 INFO L124 PetriNetUnfolderBase]: 10/180 cut-off events. [2024-11-16 23:47:21,573 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:47:21,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 180 events. 10/180 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 467 event pairs, 0 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 209. Up to 23 conditions per place. [2024-11-16 23:47:21,575 INFO L140 encePairwiseOnDemand]: 98/101 looper letters, 13 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-11-16 23:47:21,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 221 flow [2024-11-16 23:47:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-16 23:47:21,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8250825082508251 [2024-11-16 23:47:21,582 INFO L175 Difference]: Start difference. First operand has 91 places, 90 transitions, 187 flow. Second operand 3 states and 250 transitions. [2024-11-16 23:47:21,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 221 flow [2024-11-16 23:47:21,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 221 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:21,586 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 195 flow [2024-11-16 23:47:21,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=94, PETRI_TRANSITIONS=90} [2024-11-16 23:47:21,588 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -3 predicate places. [2024-11-16 23:47:21,588 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 195 flow [2024-11-16 23:47:21,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 23:47:21,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:21,589 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] [2024-11-16 23:47:21,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:47:21,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:21,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:21,591 INFO L85 PathProgramCache]: Analyzing trace with hash 842382204, now seen corresponding path program 1 times [2024-11-16 23:47:21,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:21,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647998051] [2024-11-16 23:47:21,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:21,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:22,159 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 23:47:22,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:22,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647998051] [2024-11-16 23:47:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647998051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:22,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:47:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134105715] [2024-11-16 23:47:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:22,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:47:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:47:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:22,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 101 [2024-11-16 23:47:22,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:47:22,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:22,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 101 [2024-11-16 23:47:22,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:22,449 INFO L124 PetriNetUnfolderBase]: 32/202 cut-off events. [2024-11-16 23:47:22,450 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:47:22,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 202 events. 32/202 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 659 event pairs, 2 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 294. Up to 55 conditions per place. [2024-11-16 23:47:22,452 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 28 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2024-11-16 23:47:22,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 97 transitions, 275 flow [2024-11-16 23:47:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:47:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:47:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-11-16 23:47:22,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6996699669966997 [2024-11-16 23:47:22,459 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 195 flow. Second operand 6 states and 424 transitions. [2024-11-16 23:47:22,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 97 transitions, 275 flow [2024-11-16 23:47:22,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:22,463 INFO L231 Difference]: Finished difference. Result has 96 places, 89 transitions, 199 flow [2024-11-16 23:47:22,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=96, PETRI_TRANSITIONS=89} [2024-11-16 23:47:22,465 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -1 predicate places. [2024-11-16 23:47:22,466 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 89 transitions, 199 flow [2024-11-16 23:47:22,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.0) internal successors, (402), 6 states have internal predecessors, (402), 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 23:47:22,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:22,466 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] [2024-11-16 23:47:22,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:47:22,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:22,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1646775817, now seen corresponding path program 1 times [2024-11-16 23:47:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:22,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401328692] [2024-11-16 23:47:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:22,514 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 23:47:22,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401328692] [2024-11-16 23:47:22,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401328692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:22,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:22,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:22,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707772582] [2024-11-16 23:47:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:22,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:22,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:22,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2024-11-16 23:47:22,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 89 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 23:47:22,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:22,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2024-11-16 23:47:22,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:22,568 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2024-11-16 23:47:22,568 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2024-11-16 23:47:22,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 159 events. 1/159 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 297 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 184. Up to 7 conditions per place. [2024-11-16 23:47:22,571 INFO L140 encePairwiseOnDemand]: 98/101 looper letters, 8 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-11-16 23:47:22,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 89 transitions, 222 flow [2024-11-16 23:47:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-16 23:47:22,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382838283828383 [2024-11-16 23:47:22,573 INFO L175 Difference]: Start difference. First operand has 96 places, 89 transitions, 199 flow. Second operand 3 states and 254 transitions. [2024-11-16 23:47:22,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 89 transitions, 222 flow [2024-11-16 23:47:22,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 89 transitions, 212 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:47:22,576 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 191 flow [2024-11-16 23:47:22,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-11-16 23:47:22,578 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -5 predicate places. [2024-11-16 23:47:22,579 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 191 flow [2024-11-16 23:47:22,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 23:47:22,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:22,581 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 23:47:22,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:47:22,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:22,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1982139777, now seen corresponding path program 1 times [2024-11-16 23:47:22,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:22,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911771236] [2024-11-16 23:47:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:22,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:22,626 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 23:47:22,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:22,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911771236] [2024-11-16 23:47:22,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911771236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:22,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:22,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:22,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954703519] [2024-11-16 23:47:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:22,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:22,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:22,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:22,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 101 [2024-11-16 23:47:22,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 23:47:22,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:22,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 101 [2024-11-16 23:47:22,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:22,676 INFO L124 PetriNetUnfolderBase]: 8/233 cut-off events. [2024-11-16 23:47:22,677 INFO L125 PetriNetUnfolderBase]: For 13/21 co-relation queries the response was YES. [2024-11-16 23:47:22,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 233 events. 8/233 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 806 event pairs, 4 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 277. Up to 25 conditions per place. [2024-11-16 23:47:22,680 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 12 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2024-11-16 23:47:22,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 232 flow [2024-11-16 23:47:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-11-16 23:47:22,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316831683168316 [2024-11-16 23:47:22,682 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 191 flow. Second operand 3 states and 252 transitions. [2024-11-16 23:47:22,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 232 flow [2024-11-16 23:47:22,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:22,685 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 215 flow [2024-11-16 23:47:22,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=93, PETRI_TRANSITIONS=90} [2024-11-16 23:47:22,686 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -4 predicate places. [2024-11-16 23:47:22,688 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 215 flow [2024-11-16 23:47:22,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 23:47:22,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:22,688 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:22,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:47:22,689 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:47:22,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -296956765, now seen corresponding path program 1 times [2024-11-16 23:47:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:22,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330002865] [2024-11-16 23:47:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:22,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:47:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:22,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:47:22,767 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:47:22,768 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-16 23:47:22,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-16 23:47:22,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-16 23:47:22,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-16 23:47:22,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-16 23:47:22,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-16 23:47:22,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-16 23:47:22,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-16 23:47:22,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-16 23:47:22,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-16 23:47:22,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-16 23:47:22,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-16 23:47:22,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-16 23:47:22,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-16 23:47:22,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-16 23:47:22,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:47:22,777 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-16 23:47:22,781 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:47:22,782 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:47:22,806 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:47:22,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 122 transitions, 260 flow [2024-11-16 23:47:22,840 INFO L124 PetriNetUnfolderBase]: 22/263 cut-off events. [2024-11-16 23:47:22,840 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:47:22,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 263 events. 22/263 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 615 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 150. Up to 8 conditions per place. [2024-11-16 23:47:22,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 122 transitions, 260 flow [2024-11-16 23:47:22,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 122 transitions, 260 flow [2024-11-16 23:47:22,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:47:22,847 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;@63d8ae9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:47:22,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-16 23:47:22,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:47:22,850 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-16 23:47:22,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:47:22,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:22,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:22,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:22,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1178199294, now seen corresponding path program 1 times [2024-11-16 23:47:22,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:22,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371551259] [2024-11-16 23:47:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:22,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:22,865 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 23:47:22,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:22,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371551259] [2024-11-16 23:47:22,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371551259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:22,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:22,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:47:22,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612231473] [2024-11-16 23:47:22,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:22,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:47:22,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:22,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:47:22,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:47:22,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 122 [2024-11-16 23:47:22,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 122 transitions, 260 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 23:47:22,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:22,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 122 [2024-11-16 23:47:22,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:22,928 INFO L124 PetriNetUnfolderBase]: 19/261 cut-off events. [2024-11-16 23:47:22,929 INFO L125 PetriNetUnfolderBase]: For 38/44 co-relation queries the response was YES. [2024-11-16 23:47:22,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 261 events. 19/261 cut-off events. For 38/44 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 750 event pairs, 4 based on Foata normal form. 22/249 useless extension candidates. Maximal degree in co-relation 147. Up to 30 conditions per place. [2024-11-16 23:47:22,932 INFO L140 encePairwiseOnDemand]: 111/122 looper letters, 11 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2024-11-16 23:47:22,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 109 transitions, 256 flow [2024-11-16 23:47:22,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:47:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:47:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2024-11-16 23:47:22,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016393442622951 [2024-11-16 23:47:22,934 INFO L175 Difference]: Start difference. First operand has 117 places, 122 transitions, 260 flow. Second operand 2 states and 220 transitions. [2024-11-16 23:47:22,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 109 transitions, 256 flow [2024-11-16 23:47:22,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 109 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:22,937 INFO L231 Difference]: Finished difference. Result has 109 places, 109 transitions, 234 flow [2024-11-16 23:47:22,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=234, PETRI_PLACES=109, PETRI_TRANSITIONS=109} [2024-11-16 23:47:22,938 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -8 predicate places. [2024-11-16 23:47:22,938 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 109 transitions, 234 flow [2024-11-16 23:47:22,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 23:47:22,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:22,939 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] [2024-11-16 23:47:22,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:47:22,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:22,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:22,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2015790853, now seen corresponding path program 1 times [2024-11-16 23:47:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660101449] [2024-11-16 23:47:22,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:22,966 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 23:47:22,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:22,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660101449] [2024-11-16 23:47:22,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660101449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:22,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:22,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:47:22,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687080193] [2024-11-16 23:47:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:22,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:22,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:22,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:22,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:22,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2024-11-16 23:47:22,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 23:47:22,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:22,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2024-11-16 23:47:22,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:23,076 INFO L124 PetriNetUnfolderBase]: 59/513 cut-off events. [2024-11-16 23:47:23,077 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-16 23:47:23,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 513 events. 59/513 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2534 event pairs, 10 based on Foata normal form. 1/449 useless extension candidates. Maximal degree in co-relation 624. Up to 94 conditions per place. [2024-11-16 23:47:23,081 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 18 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-11-16 23:47:23,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 112 transitions, 280 flow [2024-11-16 23:47:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:23,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-16 23:47:23,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.819672131147541 [2024-11-16 23:47:23,083 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 234 flow. Second operand 3 states and 300 transitions. [2024-11-16 23:47:23,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 112 transitions, 280 flow [2024-11-16 23:47:23,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 112 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:47:23,087 INFO L231 Difference]: Finished difference. Result has 112 places, 110 transitions, 246 flow [2024-11-16 23:47:23,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=112, PETRI_TRANSITIONS=110} [2024-11-16 23:47:23,089 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -5 predicate places. [2024-11-16 23:47:23,090 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 110 transitions, 246 flow [2024-11-16 23:47:23,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 23:47:23,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:23,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:23,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:47:23,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:23,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:23,095 INFO L85 PathProgramCache]: Analyzing trace with hash 550981692, now seen corresponding path program 1 times [2024-11-16 23:47:23,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:23,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748288013] [2024-11-16 23:47:23,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:23,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:23,437 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 23:47:23,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:23,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748288013] [2024-11-16 23:47:23,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748288013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:23,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:23,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:47:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014187547] [2024-11-16 23:47:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:23,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:47:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:47:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:47:23,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 122 [2024-11-16 23:47:23,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 23:47:23,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:23,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 122 [2024-11-16 23:47:23,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:23,698 INFO L124 PetriNetUnfolderBase]: 179/635 cut-off events. [2024-11-16 23:47:23,698 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-16 23:47:23,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 635 events. 179/635 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3490 event pairs, 12 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 969. Up to 208 conditions per place. [2024-11-16 23:47:23,703 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 41 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-11-16 23:47:23,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 125 transitions, 368 flow [2024-11-16 23:47:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:47:23,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:47:23,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2024-11-16 23:47:23,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7185792349726776 [2024-11-16 23:47:23,708 INFO L175 Difference]: Start difference. First operand has 112 places, 110 transitions, 246 flow. Second operand 6 states and 526 transitions. [2024-11-16 23:47:23,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 125 transitions, 368 flow [2024-11-16 23:47:23,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 125 transitions, 366 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:47:23,711 INFO L231 Difference]: Finished difference. Result has 115 places, 109 transitions, 252 flow [2024-11-16 23:47:23,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=115, PETRI_TRANSITIONS=109} [2024-11-16 23:47:23,713 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2024-11-16 23:47:23,713 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 109 transitions, 252 flow [2024-11-16 23:47:23,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 23:47:23,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:23,714 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] [2024-11-16 23:47:23,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:47:23,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:23,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:23,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1219687510, now seen corresponding path program 1 times [2024-11-16 23:47:23,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:23,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904860542] [2024-11-16 23:47:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:23,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:23,746 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 23:47:23,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:23,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904860542] [2024-11-16 23:47:23,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904860542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:23,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:23,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057046462] [2024-11-16 23:47:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:23,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:23,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:23,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:23,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2024-11-16 23:47:23,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 109 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 23:47:23,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:23,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2024-11-16 23:47:23,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:23,852 INFO L124 PetriNetUnfolderBase]: 56/788 cut-off events. [2024-11-16 23:47:23,852 INFO L125 PetriNetUnfolderBase]: For 124/390 co-relation queries the response was YES. [2024-11-16 23:47:23,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 788 events. 56/788 cut-off events. For 124/390 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5088 event pairs, 11 based on Foata normal form. 0/669 useless extension candidates. Maximal degree in co-relation 959. Up to 59 conditions per place. [2024-11-16 23:47:23,858 INFO L140 encePairwiseOnDemand]: 114/122 looper letters, 22 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2024-11-16 23:47:23,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 120 transitions, 341 flow [2024-11-16 23:47:23,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2024-11-16 23:47:23,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8442622950819673 [2024-11-16 23:47:23,860 INFO L175 Difference]: Start difference. First operand has 115 places, 109 transitions, 252 flow. Second operand 3 states and 309 transitions. [2024-11-16 23:47:23,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 120 transitions, 341 flow [2024-11-16 23:47:23,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 120 transitions, 331 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:47:23,863 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 294 flow [2024-11-16 23:47:23,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2024-11-16 23:47:23,864 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -3 predicate places. [2024-11-16 23:47:23,864 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 294 flow [2024-11-16 23:47:23,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 23:47:23,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:23,864 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 23:47:23,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:47:23,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:23,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash 287637838, now seen corresponding path program 1 times [2024-11-16 23:47:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120003188] [2024-11-16 23:47:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:23,891 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 23:47:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:23,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120003188] [2024-11-16 23:47:23,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120003188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:23,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:23,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:47:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36092158] [2024-11-16 23:47:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:23,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:47:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:47:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:47:23,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2024-11-16 23:47:23,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 23:47:23,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:23,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2024-11-16 23:47:23,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:24,126 INFO L124 PetriNetUnfolderBase]: 273/1975 cut-off events. [2024-11-16 23:47:24,126 INFO L125 PetriNetUnfolderBase]: For 391/908 co-relation queries the response was YES. [2024-11-16 23:47:24,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 1975 events. 273/1975 cut-off events. For 391/908 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17167 event pairs, 94 based on Foata normal form. 1/1697 useless extension candidates. Maximal degree in co-relation 2757. Up to 395 conditions per place. [2024-11-16 23:47:24,137 INFO L140 encePairwiseOnDemand]: 111/122 looper letters, 27 selfloop transitions, 8 changer transitions 0/128 dead transitions. [2024-11-16 23:47:24,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 128 transitions, 409 flow [2024-11-16 23:47:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:47:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:47:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-16 23:47:24,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2024-11-16 23:47:24,139 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 294 flow. Second operand 3 states and 306 transitions. [2024-11-16 23:47:24,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 128 transitions, 409 flow [2024-11-16 23:47:24,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 128 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:24,143 INFO L231 Difference]: Finished difference. Result has 116 places, 123 transitions, 352 flow [2024-11-16 23:47:24,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=116, PETRI_TRANSITIONS=123} [2024-11-16 23:47:24,143 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -1 predicate places. [2024-11-16 23:47:24,144 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 123 transitions, 352 flow [2024-11-16 23:47:24,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 23:47:24,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:24,144 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:24,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:47:24,145 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:24,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1263110698, now seen corresponding path program 1 times [2024-11-16 23:47:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:24,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523823621] [2024-11-16 23:47:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:24,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:24,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:24,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523823621] [2024-11-16 23:47:24,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523823621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:47:24,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478257898] [2024-11-16 23:47:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:47:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:47:24,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:47:24,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:47:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:24,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:47:24,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:47:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:24,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:47:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:47:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478257898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:47:24,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:47:24,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:47:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292776901] [2024-11-16 23:47:24,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:47:24,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:47:24,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:47:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:47:24,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2024-11-16 23:47:24,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 123 transitions, 352 flow. Second operand has 10 states, 10 states have (on average 92.4) internal successors, (924), 10 states have internal predecessors, (924), 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 23:47:24,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:24,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2024-11-16 23:47:24,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:24,726 INFO L124 PetriNetUnfolderBase]: 158/747 cut-off events. [2024-11-16 23:47:24,726 INFO L125 PetriNetUnfolderBase]: For 356/423 co-relation queries the response was YES. [2024-11-16 23:47:24,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 747 events. 158/747 cut-off events. For 356/423 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5241 event pairs, 24 based on Foata normal form. 38/739 useless extension candidates. Maximal degree in co-relation 1338. Up to 100 conditions per place. [2024-11-16 23:47:24,731 INFO L140 encePairwiseOnDemand]: 117/122 looper letters, 47 selfloop transitions, 7 changer transitions 0/120 dead transitions. [2024-11-16 23:47:24,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 120 transitions, 510 flow [2024-11-16 23:47:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:47:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:47:24,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 850 transitions. [2024-11-16 23:47:24,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7741347905282332 [2024-11-16 23:47:24,735 INFO L175 Difference]: Start difference. First operand has 116 places, 123 transitions, 352 flow. Second operand 9 states and 850 transitions. [2024-11-16 23:47:24,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 120 transitions, 510 flow [2024-11-16 23:47:24,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 120 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:47:24,739 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 262 flow [2024-11-16 23:47:24,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-11-16 23:47:24,740 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -28 predicate places. [2024-11-16 23:47:24,740 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 262 flow [2024-11-16 23:47:24,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 92.4) internal successors, (924), 10 states have internal predecessors, (924), 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 23:47:24,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:24,741 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:24,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:47:24,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 23:47:24,943 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:24,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash -587135053, now seen corresponding path program 1 times [2024-11-16 23:47:24,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977703665] [2024-11-16 23:47:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:47:25,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:25,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977703665] [2024-11-16 23:47:25,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977703665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:47:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065401347] [2024-11-16 23:47:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:47:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:25,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:47:25,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:47:25,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 122 [2024-11-16 23:47:25,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:47:25,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:25,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 122 [2024-11-16 23:47:25,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:25,138 INFO L124 PetriNetUnfolderBase]: 29/292 cut-off events. [2024-11-16 23:47:25,139 INFO L125 PetriNetUnfolderBase]: For 44/46 co-relation queries the response was YES. [2024-11-16 23:47:25,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 292 events. 29/292 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1377 event pairs, 4 based on Foata normal form. 8/283 useless extension candidates. Maximal degree in co-relation 458. Up to 29 conditions per place. [2024-11-16 23:47:25,141 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 23 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-11-16 23:47:25,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 98 transitions, 365 flow [2024-11-16 23:47:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:47:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 23:47:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2024-11-16 23:47:25,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8245901639344262 [2024-11-16 23:47:25,144 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 262 flow. Second operand 5 states and 503 transitions. [2024-11-16 23:47:25,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 98 transitions, 365 flow [2024-11-16 23:47:25,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 98 transitions, 350 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-16 23:47:25,147 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 282 flow [2024-11-16 23:47:25,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=282, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-11-16 23:47:25,147 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -27 predicate places. [2024-11-16 23:47:25,148 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 282 flow [2024-11-16 23:47:25,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:47:25,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:25,148 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:25,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:47:25,149 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:25,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash 134168077, now seen corresponding path program 1 times [2024-11-16 23:47:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253852483] [2024-11-16 23:47:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:47:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:47:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:47:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253852483] [2024-11-16 23:47:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253852483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:47:25,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:47:25,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:47:25,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368809560] [2024-11-16 23:47:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:47:25,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:47:25,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:47:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:47:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:47:25,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 122 [2024-11-16 23:47:25,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:47:25,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:47:25,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 122 [2024-11-16 23:47:25,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:47:25,291 INFO L124 PetriNetUnfolderBase]: 22/262 cut-off events. [2024-11-16 23:47:25,292 INFO L125 PetriNetUnfolderBase]: For 107/115 co-relation queries the response was YES. [2024-11-16 23:47:25,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 262 events. 22/262 cut-off events. For 107/115 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1075 event pairs, 4 based on Foata normal form. 12/265 useless extension candidates. Maximal degree in co-relation 447. Up to 33 conditions per place. [2024-11-16 23:47:25,293 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 19 selfloop transitions, 7 changer transitions 0/95 dead transitions. [2024-11-16 23:47:25,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 363 flow [2024-11-16 23:47:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:47:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 23:47:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2024-11-16 23:47:25,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8180327868852459 [2024-11-16 23:47:25,295 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 282 flow. Second operand 5 states and 499 transitions. [2024-11-16 23:47:25,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 363 flow [2024-11-16 23:47:25,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 95 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:47:25,298 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 316 flow [2024-11-16 23:47:25,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=316, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2024-11-16 23:47:25,299 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -22 predicate places. [2024-11-16 23:47:25,299 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 316 flow [2024-11-16 23:47:25,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 23:47:25,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:47:25,300 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:25,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:47:25,300 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr2ASSERT_VIOLATIONDATA_RACE === [salethreadErr3ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE, salethreadErr0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-16 23:47:25,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:47:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -798320203, now seen corresponding path program 1 times [2024-11-16 23:47:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:47:25,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88771341] [2024-11-16 23:47:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:47:25,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:47:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:25,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:47:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:47:25,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:47:25,331 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:47:25,331 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-16 23:47:25,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-16 23:47:25,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-16 23:47:25,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-16 23:47:25,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2024-11-16 23:47:25,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-16 23:47:25,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-16 23:47:25,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-16 23:47:25,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-16 23:47:25,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-16 23:47:25,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-16 23:47:25,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-16 23:47:25,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:47:25,335 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:47:25,392 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-16 23:47:25,392 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:47:25,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:47:25 BasicIcfg [2024-11-16 23:47:25,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:47:25,398 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:47:25,398 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:47:25,398 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:47:25,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:47:20" (3/4) ... [2024-11-16 23:47:25,400 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 23:47:25,465 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:47:25,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:47:25,466 INFO L158 Benchmark]: Toolchain (without parser) took 5899.02ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 126.9MB in the beginning and 138.5MB in the end (delta: -11.5MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,466 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:47:25,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.98ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 104.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.39ms. Allocated memory is still 184.5MB. Free memory was 104.6MB in the beginning and 102.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,467 INFO L158 Benchmark]: Boogie Preprocessor took 40.29ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 100.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,467 INFO L158 Benchmark]: IcfgBuilder took 501.12ms. Allocated memory is still 184.5MB. Free memory was 100.9MB in the beginning and 81.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,467 INFO L158 Benchmark]: TraceAbstraction took 4701.49ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 80.4MB in the beginning and 150.0MB in the end (delta: -69.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,468 INFO L158 Benchmark]: Witness Printer took 67.29ms. Allocated memory is still 299.9MB. Free memory was 150.0MB in the beginning and 138.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 23:47:25,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.98ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 104.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.39ms. Allocated memory is still 184.5MB. Free memory was 104.6MB in the beginning and 102.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.29ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 100.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 501.12ms. Allocated memory is still 184.5MB. Free memory was 100.9MB in the beginning and 81.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4701.49ms. Allocated memory was 184.5MB in the beginning and 299.9MB in the end (delta: 115.3MB). Free memory was 80.4MB in the beginning and 150.0MB in the end (delta: -69.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 67.29ms. Allocated memory is still 299.9MB. Free memory was 150.0MB in the beginning and 138.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, numberOfSeatsSold=0, stopSales=0] [L736] 0 pthread_t salethreads[10]; VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, numOfTickets=0, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L738] 0 numOfTickets = 10 VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, i=0, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 10 VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, i=0, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=49, \old(argv)={51:50}, argc=49, i=0, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={51:50}, argc=49, i=0, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={51:50}, arg={0:0}, argc=49, i=1, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 10 VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={51:50}, arg={0:0}, argc=49, i=1, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={51:50}, arg={0:0}, argc=49, i=1, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={51:50}, arg={0:0}, argc=49, i=1, numOfTickets=10, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (10 - (((10 / 10) == 0) ? 1 : (10 / 10)))) VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=10, numberOfSeatsSold=0, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=10, numberOfSeatsSold=1, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=10, numberOfSeatsSold=1, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 113 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 13 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 131 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 546 IncrementalHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 18 mSDtfsCounter, 546 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=5, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 815 SizeOfPredicates, 2 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 24/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-16 23:47:25,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE