./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --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/weaver/parallel-barrier-loop.wvr.c -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 a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:44:44,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:44:44,867 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:44:44,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:44:44,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:44:44,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:44:44,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:44:44,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:44:44,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:44:44,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:44:44,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:44:44,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:44:44,913 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:44:44,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:44:44,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:44:44,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:44:44,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:44:44,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:44:44,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:44:44,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:44:44,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:44:44,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:44:44,921 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:44:44,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:44:44,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:44:44,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:44:44,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:44:44,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:44:44,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:44:44,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:44:44,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:44:44,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:44:44,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:44:44,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:44:44,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:44:44,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:44:44,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:44:44,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:44:44,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:44:44,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:44:44,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:44:44,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2024-11-16 23:44:45,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:44:45,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:44:45,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:44:45,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:44:45,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:44:45,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-11-16 23:44:46,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:44:46,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:44:46,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2024-11-16 23:44:46,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/796e35fcb/5dc9a571bf1a4846ac5e561083457cd5/FLAG1811b75e0 [2024-11-16 23:44:47,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/796e35fcb/5dc9a571bf1a4846ac5e561083457cd5 [2024-11-16 23:44:47,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:44:47,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:44:47,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:44:47,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:44:47,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:44:47,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79886c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47, skipping insertion in model container [2024-11-16 23:44:47,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:44:47,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:44:47,498 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:44:47,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:44:47,563 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:44:47,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47 WrapperNode [2024-11-16 23:44:47,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:44:47,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:44:47,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:44:47,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:44:47,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,605 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 305 [2024-11-16 23:44:47,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:44:47,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:44:47,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:44:47,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:44:47,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:44:47,649 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:44:47,649 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:44:47,649 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:44:47,653 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (1/1) ... [2024-11-16 23:44:47,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:44:47,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:44:47,689 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 23:44:47,692 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 23:44:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:44:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 23:44:47,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 23:44:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 23:44:47,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 23:44:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-16 23:44:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-16 23:44:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-16 23:44:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-16 23:44:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:44:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-16 23:44:47,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-16 23:44:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-16 23:44:47,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-16 23:44:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:44:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:44:47,747 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 23:44:47,874 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:44:47,876 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:44:48,334 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:44:48,334 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:44:48,387 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:44:48,388 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:44:48,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:44:48 BoogieIcfgContainer [2024-11-16 23:44:48,389 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:44:48,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:44:48,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:44:48,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:44:48,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:44:47" (1/3) ... [2024-11-16 23:44:48,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100b3772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:48, skipping insertion in model container [2024-11-16 23:44:48,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:47" (2/3) ... [2024-11-16 23:44:48,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100b3772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:48, skipping insertion in model container [2024-11-16 23:44:48,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:44:48" (3/3) ... [2024-11-16 23:44:48,397 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2024-11-16 23:44:48,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:44:48,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-16 23:44:48,411 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:44:48,543 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-16 23:44:48,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 408 transitions, 882 flow [2024-11-16 23:44:48,798 INFO L124 PetriNetUnfolderBase]: 22/394 cut-off events. [2024-11-16 23:44:48,799 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:44:48,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 394 events. 22/394 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 929 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 335. Up to 3 conditions per place. [2024-11-16 23:44:48,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 405 places, 408 transitions, 882 flow [2024-11-16 23:44:48,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 377 transitions, 799 flow [2024-11-16 23:44:48,834 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:44:48,841 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;@354685e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:44:48,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-16 23:44:48,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:44:48,857 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-16 23:44:48,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:44:48,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:48,858 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:48,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:44:48,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash 953505756, now seen corresponding path program 1 times [2024-11-16 23:44:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:48,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497520044] [2024-11-16 23:44:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:49,100 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 23:44:49,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497520044] [2024-11-16 23:44:49,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497520044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:49,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:49,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:49,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573656131] [2024-11-16 23:44:49,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:49,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:44:49,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 377 transitions, 799 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:44:49,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:49,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:44:49,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:56,374 INFO L124 PetriNetUnfolderBase]: 7436/38733 cut-off events. [2024-11-16 23:44:56,374 INFO L125 PetriNetUnfolderBase]: For 4083/4083 co-relation queries the response was YES. [2024-11-16 23:44:56,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51805 conditions, 38733 events. 7436/38733 cut-off events. For 4083/4083 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 529971 event pairs, 4596 based on Foata normal form. 3874/35793 useless extension candidates. Maximal degree in co-relation 50913. Up to 9448 conditions per place. [2024-11-16 23:44:56,838 INFO L140 encePairwiseOnDemand]: 396/412 looper letters, 48 selfloop transitions, 2 changer transitions 1/363 dead transitions. [2024-11-16 23:44:56,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 363 transitions, 871 flow [2024-11-16 23:44:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:56,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2024-11-16 23:44:56,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8673139158576052 [2024-11-16 23:44:56,862 INFO L175 Difference]: Start difference. First operand has 375 places, 377 transitions, 799 flow. Second operand 3 states and 1072 transitions. [2024-11-16 23:44:56,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 363 transitions, 871 flow [2024-11-16 23:44:56,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 363 transitions, 842 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-16 23:44:56,913 INFO L231 Difference]: Finished difference. Result has 365 places, 362 transitions, 744 flow [2024-11-16 23:44:56,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=365, PETRI_TRANSITIONS=362} [2024-11-16 23:44:56,922 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -10 predicate places. [2024-11-16 23:44:56,922 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 362 transitions, 744 flow [2024-11-16 23:44:56,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:44:56,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:56,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:56,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:44:56,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:44:56,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:56,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1448821897, now seen corresponding path program 1 times [2024-11-16 23:44:56,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:56,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477679818] [2024-11-16 23:44:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:56,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:56,996 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 23:44:56,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:56,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477679818] [2024-11-16 23:44:56,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477679818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:56,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:56,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:56,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911475962] [2024-11-16 23:44:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:56,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:57,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:57,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:57,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:57,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:44:57,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 362 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:44:57,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:57,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:44:57,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:02,326 INFO L124 PetriNetUnfolderBase]: 7436/39583 cut-off events. [2024-11-16 23:45:02,327 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-11-16 23:45:02,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49802 conditions, 39583 events. 7436/39583 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 547008 event pairs, 4596 based on Foata normal form. 0/32443 useless extension candidates. Maximal degree in co-relation 49747. Up to 9478 conditions per place. [2024-11-16 23:45:03,007 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2024-11-16 23:45:03,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 361 transitions, 842 flow [2024-11-16 23:45:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:03,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:03,011 INFO L175 Difference]: Start difference. First operand has 365 places, 362 transitions, 744 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:03,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 361 transitions, 842 flow [2024-11-16 23:45:03,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 361 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:03,020 INFO L231 Difference]: Finished difference. Result has 363 places, 361 transitions, 742 flow [2024-11-16 23:45:03,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=363, PETRI_TRANSITIONS=361} [2024-11-16 23:45:03,022 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -12 predicate places. [2024-11-16 23:45:03,022 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 361 transitions, 742 flow [2024-11-16 23:45:03,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:03,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:03,023 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:03,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:45:03,024 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:03,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash -782517689, now seen corresponding path program 1 times [2024-11-16 23:45:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:03,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197340789] [2024-11-16 23:45:03,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:03,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:03,092 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 23:45:03,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:03,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197340789] [2024-11-16 23:45:03,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197340789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:03,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638314419] [2024-11-16 23:45:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:03,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:03,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:03,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:03,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 361 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:03,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:03,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:03,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:08,087 INFO L124 PetriNetUnfolderBase]: 7676/38535 cut-off events. [2024-11-16 23:45:08,088 INFO L125 PetriNetUnfolderBase]: For 1288/1288 co-relation queries the response was YES. [2024-11-16 23:45:08,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48904 conditions, 38535 events. 7676/38535 cut-off events. For 1288/1288 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 525283 event pairs, 4596 based on Foata normal form. 0/31649 useless extension candidates. Maximal degree in co-relation 48842. Up to 9708 conditions per place. [2024-11-16 23:45:08,427 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2024-11-16 23:45:08,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 360 transitions, 840 flow [2024-11-16 23:45:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:08,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:08,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:08,430 INFO L175 Difference]: Start difference. First operand has 363 places, 361 transitions, 742 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:08,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 360 transitions, 840 flow [2024-11-16 23:45:08,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 360 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:08,438 INFO L231 Difference]: Finished difference. Result has 362 places, 360 transitions, 740 flow [2024-11-16 23:45:08,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=362, PETRI_TRANSITIONS=360} [2024-11-16 23:45:08,439 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -13 predicate places. [2024-11-16 23:45:08,440 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 360 transitions, 740 flow [2024-11-16 23:45:08,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:08,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:08,442 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:08,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:45:08,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:08,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:08,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1470922902, now seen corresponding path program 1 times [2024-11-16 23:45:08,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:08,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879286767] [2024-11-16 23:45:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:08,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:08,504 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 23:45:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879286767] [2024-11-16 23:45:08,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879286767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:08,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:08,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:08,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285743544] [2024-11-16 23:45:08,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:08,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:08,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:08,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:08,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:08,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:08,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 360 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:08,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:08,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:08,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:13,875 INFO L124 PetriNetUnfolderBase]: 7676/38807 cut-off events. [2024-11-16 23:45:13,875 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2024-11-16 23:45:14,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49186 conditions, 38807 events. 7676/38807 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 529270 event pairs, 4596 based on Foata normal form. 0/31588 useless extension candidates. Maximal degree in co-relation 49117. Up to 9718 conditions per place. [2024-11-16 23:45:14,160 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2024-11-16 23:45:14,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 359 transitions, 838 flow [2024-11-16 23:45:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:14,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:14,163 INFO L175 Difference]: Start difference. First operand has 362 places, 360 transitions, 740 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:14,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 359 transitions, 838 flow [2024-11-16 23:45:14,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 359 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:14,169 INFO L231 Difference]: Finished difference. Result has 361 places, 359 transitions, 738 flow [2024-11-16 23:45:14,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=361, PETRI_TRANSITIONS=359} [2024-11-16 23:45:14,170 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -14 predicate places. [2024-11-16 23:45:14,171 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 359 transitions, 738 flow [2024-11-16 23:45:14,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:14,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:14,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:14,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:45:14,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:14,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -275829353, now seen corresponding path program 1 times [2024-11-16 23:45:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373848058] [2024-11-16 23:45:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:14,228 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 23:45:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373848058] [2024-11-16 23:45:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373848058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:14,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602879705] [2024-11-16 23:45:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:14,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:14,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:14,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:14,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:14,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 359 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:14,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:14,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:14,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:19,082 INFO L124 PetriNetUnfolderBase]: 7436/38568 cut-off events. [2024-11-16 23:45:19,082 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2024-11-16 23:45:19,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48735 conditions, 38568 events. 7436/38568 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 528422 event pairs, 4596 based on Foata normal form. 0/31806 useless extension candidates. Maximal degree in co-relation 48659. Up to 9450 conditions per place. [2024-11-16 23:45:19,400 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2024-11-16 23:45:19,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 358 transitions, 836 flow [2024-11-16 23:45:19,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:19,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:19,403 INFO L175 Difference]: Start difference. First operand has 361 places, 359 transitions, 738 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:19,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 358 transitions, 836 flow [2024-11-16 23:45:19,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 358 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:19,408 INFO L231 Difference]: Finished difference. Result has 360 places, 358 transitions, 736 flow [2024-11-16 23:45:19,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=360, PETRI_TRANSITIONS=358} [2024-11-16 23:45:19,409 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -15 predicate places. [2024-11-16 23:45:19,409 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 358 transitions, 736 flow [2024-11-16 23:45:19,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:19,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:19,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:19,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:45:19,411 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:19,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1428353690, now seen corresponding path program 1 times [2024-11-16 23:45:19,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:19,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525543447] [2024-11-16 23:45:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:19,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:19,455 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 23:45:19,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525543447] [2024-11-16 23:45:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525543447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:19,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:19,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657729867] [2024-11-16 23:45:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:19,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:19,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:19,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:19,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:19,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:19,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 358 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:19,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:19,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:19,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:24,710 INFO L124 PetriNetUnfolderBase]: 7436/39249 cut-off events. [2024-11-16 23:45:24,711 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2024-11-16 23:45:24,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49444 conditions, 39249 events. 7436/39249 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 541594 event pairs, 4596 based on Foata normal form. 0/32120 useless extension candidates. Maximal degree in co-relation 49361. Up to 9478 conditions per place. [2024-11-16 23:45:24,988 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2024-11-16 23:45:24,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 357 transitions, 834 flow [2024-11-16 23:45:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:24,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:24,991 INFO L175 Difference]: Start difference. First operand has 360 places, 358 transitions, 736 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:24,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 357 transitions, 834 flow [2024-11-16 23:45:24,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 357 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:24,996 INFO L231 Difference]: Finished difference. Result has 359 places, 357 transitions, 734 flow [2024-11-16 23:45:24,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=359, PETRI_TRANSITIONS=357} [2024-11-16 23:45:24,997 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -16 predicate places. [2024-11-16 23:45:24,997 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 357 transitions, 734 flow [2024-11-16 23:45:24,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:24,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:24,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:45:24,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 572048823, now seen corresponding path program 1 times [2024-11-16 23:45:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:24,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423996179] [2024-11-16 23:45:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:25,047 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 23:45:25,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:25,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423996179] [2024-11-16 23:45:25,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423996179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:25,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:25,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:25,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399633908] [2024-11-16 23:45:25,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:25,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:25,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:25,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:25,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:25,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 357 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:25,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:25,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:25,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:45:29,948 INFO L124 PetriNetUnfolderBase]: 7676/38233 cut-off events. [2024-11-16 23:45:29,948 INFO L125 PetriNetUnfolderBase]: For 1302/1302 co-relation queries the response was YES. [2024-11-16 23:45:30,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48586 conditions, 38233 events. 7676/38233 cut-off events. For 1302/1302 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 521924 event pairs, 4596 based on Foata normal form. 0/31406 useless extension candidates. Maximal degree in co-relation 48496. Up to 9716 conditions per place. [2024-11-16 23:45:30,208 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2024-11-16 23:45:30,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 356 transitions, 832 flow [2024-11-16 23:45:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:45:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:45:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2024-11-16 23:45:30,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2024-11-16 23:45:30,210 INFO L175 Difference]: Start difference. First operand has 359 places, 357 transitions, 734 flow. Second operand 3 states and 1059 transitions. [2024-11-16 23:45:30,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 356 transitions, 832 flow [2024-11-16 23:45:30,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 356 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:45:30,214 INFO L231 Difference]: Finished difference. Result has 358 places, 356 transitions, 732 flow [2024-11-16 23:45:30,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=358, PETRI_TRANSITIONS=356} [2024-11-16 23:45:30,216 INFO L277 CegarLoopForPetriNet]: 375 programPoint places, -17 predicate places. [2024-11-16 23:45:30,216 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 356 transitions, 732 flow [2024-11-16 23:45:30,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:30,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:45:30,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:45:30,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:45:30,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-16 23:45:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:45:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash -364037770, now seen corresponding path program 1 times [2024-11-16 23:45:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:45:30,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720975227] [2024-11-16 23:45:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:45:30,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:45:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:45:30,267 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 23:45:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:45:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720975227] [2024-11-16 23:45:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720975227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:45:30,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:45:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:45:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762142865] [2024-11-16 23:45:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:45:30,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:45:30,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:45:30,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:45:30,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:45:30,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2024-11-16 23:45:30,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 356 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 23:45:30,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:45:30,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2024-11-16 23:45:30,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand