./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:37:47,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:37:47,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:37:47,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:37:47,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:37:47,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:37:47,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:37:47,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:37:47,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:37:47,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:37:47,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:37:47,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:37:47,482 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:37:47,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:37:47,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:37:47,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:37:47,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:37:47,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:37:47,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:37:47,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:37:47,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:37:47,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:37:47,486 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:37:47,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:37:47,487 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:37:47,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:37:47,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:37:47,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:37:47,487 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:37:47,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:37:47,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:37:47,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:37:47,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:37:47,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:37:47,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:37:47,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:37:47,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:37:47,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:37:47,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:37:47,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:37:47,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:37:47,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-11-16 23:37:47,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:37:47,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:37:47,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:37:47,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:37:47,757 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:37:47,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-16 23:37:49,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:37:49,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:37:49,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-16 23:37:49,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/981b4b1c0/c344151e0ac3457d89dc6a5612c936d3/FLAG328184930 [2024-11-16 23:37:49,568 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/981b4b1c0/c344151e0ac3457d89dc6a5612c936d3 [2024-11-16 23:37:49,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:37:49,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:37:49,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:37:49,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:37:49,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:37:49,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:49" (1/1) ... [2024-11-16 23:37:49,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308d1411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:49, skipping insertion in model container [2024-11-16 23:37:49,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:37:49" (1/1) ... [2024-11-16 23:37:49,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:37:50,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:37:50,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:37:50,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:37:50,404 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:37:50,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50 WrapperNode [2024-11-16 23:37:50,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:37:50,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:37:50,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:37:50,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:37:50,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,469 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 243 [2024-11-16 23:37:50,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:37:50,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:37:50,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:37:50,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:37:50,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,513 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:37:50,524 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:37:50,524 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:37:50,524 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:37:50,529 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (1/1) ... [2024-11-16 23:37:50,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:37:50,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:37:50,578 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 23:37:50,581 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 23:37:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:37:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-16 23:37:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:37:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:37:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:37:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:37:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:37:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:37:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:37:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:37:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:37:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:37:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:37:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:37:50,634 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 23:37:50,825 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:37:50,827 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:37:51,332 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:37:51,334 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:37:51,384 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:37:51,385 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:37:51,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:37:51 BoogieIcfgContainer [2024-11-16 23:37:51,385 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:37:51,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:37:51,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:37:51,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:37:51,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:37:49" (1/3) ... [2024-11-16 23:37:51,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d8e26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:51, skipping insertion in model container [2024-11-16 23:37:51,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:37:50" (2/3) ... [2024-11-16 23:37:51,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d8e26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:37:51, skipping insertion in model container [2024-11-16 23:37:51,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:37:51" (3/3) ... [2024-11-16 23:37:51,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-11-16 23:37:51,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:37:51,412 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-16 23:37:51,413 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:37:51,570 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:37:51,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 274 transitions, 552 flow [2024-11-16 23:37:51,734 INFO L124 PetriNetUnfolderBase]: 2/273 cut-off events. [2024-11-16 23:37:51,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:51,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 2/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 274 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 203. Up to 2 conditions per place. [2024-11-16 23:37:51,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 274 transitions, 552 flow [2024-11-16 23:37:51,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 273 transitions, 549 flow [2024-11-16 23:37:51,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:37:51,770 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;@679a26fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:37:51,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-16 23:37:51,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:37:51,778 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-16 23:37:51,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:37:51,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:51,779 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] [2024-11-16 23:37:51,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:37:51,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:51,786 INFO L85 PathProgramCache]: Analyzing trace with hash 878877518, now seen corresponding path program 1 times [2024-11-16 23:37:51,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:51,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271434224] [2024-11-16 23:37:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:51,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:52,594 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 23:37:52,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:52,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271434224] [2024-11-16 23:37:52,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271434224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:52,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:52,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:52,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613200973] [2024-11-16 23:37:52,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:52,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:52,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:52,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:53,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 274 [2024-11-16 23:37:53,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 23:37:53,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:53,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 274 [2024-11-16 23:37:53,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:54,024 INFO L124 PetriNetUnfolderBase]: 1377/5040 cut-off events. [2024-11-16 23:37:54,024 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:37:54,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7834 conditions, 5040 events. 1377/5040 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 37781 event pairs, 1344 based on Foata normal form. 36/4711 useless extension candidates. Maximal degree in co-relation 7737. Up to 2785 conditions per place. [2024-11-16 23:37:54,060 INFO L140 encePairwiseOnDemand]: 267/274 looper letters, 92 selfloop transitions, 5 changer transitions 0/271 dead transitions. [2024-11-16 23:37:54,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 271 transitions, 739 flow [2024-11-16 23:37:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2024-11-16 23:37:54,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.698905109489051 [2024-11-16 23:37:54,086 INFO L175 Difference]: Start difference. First operand has 275 places, 273 transitions, 549 flow. Second operand 6 states and 1149 transitions. [2024-11-16 23:37:54,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 271 transitions, 739 flow [2024-11-16 23:37:54,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 271 transitions, 738 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:37:54,096 INFO L231 Difference]: Finished difference. Result has 278 places, 271 transitions, 554 flow [2024-11-16 23:37:54,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=278, PETRI_TRANSITIONS=271} [2024-11-16 23:37:54,105 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 3 predicate places. [2024-11-16 23:37:54,106 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 271 transitions, 554 flow [2024-11-16 23:37:54,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 23:37:54,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:54,107 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] [2024-11-16 23:37:54,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:37:54,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:37:54,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:54,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1978531561, now seen corresponding path program 1 times [2024-11-16 23:37:54,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:54,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848669109] [2024-11-16 23:37:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:54,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:54,526 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 23:37:54,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:54,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848669109] [2024-11-16 23:37:54,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848669109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:54,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:54,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:54,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813474411] [2024-11-16 23:37:54,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:54,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:54,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:54,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:55,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 274 [2024-11-16 23:37:55,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 271 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 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 23:37:55,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:55,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 274 [2024-11-16 23:37:55,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:56,097 INFO L124 PetriNetUnfolderBase]: 762/4119 cut-off events. [2024-11-16 23:37:56,098 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:37:56,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5703 conditions, 4119 events. 762/4119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31735 event pairs, 460 based on Foata normal form. 0/3759 useless extension candidates. Maximal degree in co-relation 5656. Up to 1372 conditions per place. [2024-11-16 23:37:56,119 INFO L140 encePairwiseOnDemand]: 242/274 looper letters, 81 selfloop transitions, 90 changer transitions 0/371 dead transitions. [2024-11-16 23:37:56,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 371 transitions, 1096 flow [2024-11-16 23:37:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-11-16 23:37:56,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424574209245742 [2024-11-16 23:37:56,123 INFO L175 Difference]: Start difference. First operand has 278 places, 271 transitions, 554 flow. Second operand 6 states and 1385 transitions. [2024-11-16 23:37:56,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 371 transitions, 1096 flow [2024-11-16 23:37:56,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 371 transitions, 1086 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:37:56,134 INFO L231 Difference]: Finished difference. Result has 282 places, 354 transitions, 1120 flow [2024-11-16 23:37:56,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1120, PETRI_PLACES=282, PETRI_TRANSITIONS=354} [2024-11-16 23:37:56,136 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 7 predicate places. [2024-11-16 23:37:56,136 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 354 transitions, 1120 flow [2024-11-16 23:37:56,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 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 23:37:56,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:56,138 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 23:37:56,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:37:56,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:37:56,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:56,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2122889898, now seen corresponding path program 1 times [2024-11-16 23:37:56,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:56,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739544632] [2024-11-16 23:37:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:56,460 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 23:37:56,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:56,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739544632] [2024-11-16 23:37:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739544632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:56,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:56,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083052918] [2024-11-16 23:37:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:56,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:56,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:56,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 274 [2024-11-16 23:37:56,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 354 transitions, 1120 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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 23:37:56,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:56,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 274 [2024-11-16 23:37:56,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:37:58,234 INFO L124 PetriNetUnfolderBase]: 2110/7468 cut-off events. [2024-11-16 23:37:58,234 INFO L125 PetriNetUnfolderBase]: For 1549/1553 co-relation queries the response was YES. [2024-11-16 23:37:58,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 7468 events. 2110/7468 cut-off events. For 1549/1553 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 60465 event pairs, 1264 based on Foata normal form. 0/6849 useless extension candidates. Maximal degree in co-relation 13793. Up to 4041 conditions per place. [2024-11-16 23:37:58,275 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 187 selfloop transitions, 123 changer transitions 0/486 dead transitions. [2024-11-16 23:37:58,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 486 transitions, 2164 flow [2024-11-16 23:37:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:37:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:37:58,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2024-11-16 23:37:58,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7889294403892944 [2024-11-16 23:37:58,279 INFO L175 Difference]: Start difference. First operand has 282 places, 354 transitions, 1120 flow. Second operand 6 states and 1297 transitions. [2024-11-16 23:37:58,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 486 transitions, 2164 flow [2024-11-16 23:37:58,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 486 transitions, 2164 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:37:58,298 INFO L231 Difference]: Finished difference. Result has 291 places, 470 transitions, 2072 flow [2024-11-16 23:37:58,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2072, PETRI_PLACES=291, PETRI_TRANSITIONS=470} [2024-11-16 23:37:58,300 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 16 predicate places. [2024-11-16 23:37:58,300 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 470 transitions, 2072 flow [2024-11-16 23:37:58,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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 23:37:58,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:37:58,302 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] [2024-11-16 23:37:58,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:37:58,302 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:37:58,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:37:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 588577324, now seen corresponding path program 1 times [2024-11-16 23:37:58,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:37:58,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052199719] [2024-11-16 23:37:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:37:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:37:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:37:58,728 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 23:37:58,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:37:58,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052199719] [2024-11-16 23:37:58,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052199719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:37:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:37:58,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:37:58,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628369879] [2024-11-16 23:37:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:37:58,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:37:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:37:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:37:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:37:59,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 274 [2024-11-16 23:37:59,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 470 transitions, 2072 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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 23:37:59,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:37:59,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 274 [2024-11-16 23:37:59,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:01,034 INFO L124 PetriNetUnfolderBase]: 2410/8411 cut-off events. [2024-11-16 23:38:01,035 INFO L125 PetriNetUnfolderBase]: For 3681/3691 co-relation queries the response was YES. [2024-11-16 23:38:01,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17859 conditions, 8411 events. 2410/8411 cut-off events. For 3681/3691 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 68661 event pairs, 1292 based on Foata normal form. 0/7766 useless extension candidates. Maximal degree in co-relation 17740. Up to 4365 conditions per place. [2024-11-16 23:38:01,088 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 299 selfloop transitions, 123 changer transitions 0/602 dead transitions. [2024-11-16 23:38:01,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 602 transitions, 3564 flow [2024-11-16 23:38:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:38:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:38:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1297 transitions. [2024-11-16 23:38:01,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7889294403892944 [2024-11-16 23:38:01,093 INFO L175 Difference]: Start difference. First operand has 291 places, 470 transitions, 2072 flow. Second operand 6 states and 1297 transitions. [2024-11-16 23:38:01,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 602 transitions, 3564 flow [2024-11-16 23:38:01,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 602 transitions, 3404 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-11-16 23:38:01,116 INFO L231 Difference]: Finished difference. Result has 300 places, 586 transitions, 3088 flow [2024-11-16 23:38:01,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3088, PETRI_PLACES=300, PETRI_TRANSITIONS=586} [2024-11-16 23:38:01,118 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 25 predicate places. [2024-11-16 23:38:01,118 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 586 transitions, 3088 flow [2024-11-16 23:38:01,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 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 23:38:01,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:01,119 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] [2024-11-16 23:38:01,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:38:01,119 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:01,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash 18542960, now seen corresponding path program 1 times [2024-11-16 23:38:01,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:01,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501242162] [2024-11-16 23:38:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:01,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:01,512 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 23:38:01,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501242162] [2024-11-16 23:38:01,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501242162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:01,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:01,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:38:01,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792178041] [2024-11-16 23:38:01,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:01,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:38:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:38:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:38:01,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 274 [2024-11-16 23:38:01,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 586 transitions, 3088 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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 23:38:01,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:01,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 274 [2024-11-16 23:38:01,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:03,855 INFO L124 PetriNetUnfolderBase]: 2735/9234 cut-off events. [2024-11-16 23:38:03,856 INFO L125 PetriNetUnfolderBase]: For 5327/5391 co-relation queries the response was YES. [2024-11-16 23:38:03,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21733 conditions, 9234 events. 2735/9234 cut-off events. For 5327/5391 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 76035 event pairs, 1246 based on Foata normal form. 0/8561 useless extension candidates. Maximal degree in co-relation 21601. Up to 4881 conditions per place. [2024-11-16 23:38:03,915 INFO L140 encePairwiseOnDemand]: 231/274 looper letters, 360 selfloop transitions, 180 changer transitions 0/769 dead transitions. [2024-11-16 23:38:03,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 769 transitions, 4756 flow [2024-11-16 23:38:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:38:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:38:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1344 transitions. [2024-11-16 23:38:03,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8175182481751825 [2024-11-16 23:38:03,920 INFO L175 Difference]: Start difference. First operand has 300 places, 586 transitions, 3088 flow. Second operand 6 states and 1344 transitions. [2024-11-16 23:38:03,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 769 transitions, 4756 flow [2024-11-16 23:38:03,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 769 transitions, 4360 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-11-16 23:38:03,952 INFO L231 Difference]: Finished difference. Result has 310 places, 753 transitions, 4088 flow [2024-11-16 23:38:03,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=2704, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4088, PETRI_PLACES=310, PETRI_TRANSITIONS=753} [2024-11-16 23:38:03,953 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 35 predicate places. [2024-11-16 23:38:03,953 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 753 transitions, 4088 flow [2024-11-16 23:38:03,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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 23:38:03,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:03,955 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] [2024-11-16 23:38:03,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:38:03,955 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:03,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1302019084, now seen corresponding path program 1 times [2024-11-16 23:38:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143507763] [2024-11-16 23:38:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:03,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:04,453 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 23:38:04,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143507763] [2024-11-16 23:38:04,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143507763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:04,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:04,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:38:04,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928713728] [2024-11-16 23:38:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:04,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:38:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:04,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:38:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:38:05,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 274 [2024-11-16 23:38:05,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 753 transitions, 4088 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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 23:38:05,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:05,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 274 [2024-11-16 23:38:05,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:06,785 INFO L124 PetriNetUnfolderBase]: 3188/10579 cut-off events. [2024-11-16 23:38:06,785 INFO L125 PetriNetUnfolderBase]: For 8592/8683 co-relation queries the response was YES. [2024-11-16 23:38:06,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28025 conditions, 10579 events. 3188/10579 cut-off events. For 8592/8683 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 88658 event pairs, 1284 based on Foata normal form. 0/9884 useless extension candidates. Maximal degree in co-relation 27888. Up to 5368 conditions per place. [2024-11-16 23:38:06,853 INFO L140 encePairwiseOnDemand]: 231/274 looper letters, 513 selfloop transitions, 180 changer transitions 0/936 dead transitions. [2024-11-16 23:38:06,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 936 transitions, 6356 flow [2024-11-16 23:38:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:38:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:38:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1344 transitions. [2024-11-16 23:38:06,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8175182481751825 [2024-11-16 23:38:06,858 INFO L175 Difference]: Start difference. First operand has 310 places, 753 transitions, 4088 flow. Second operand 6 states and 1344 transitions. [2024-11-16 23:38:06,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 936 transitions, 6356 flow [2024-11-16 23:38:07,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 936 transitions, 6302 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-11-16 23:38:07,032 INFO L231 Difference]: Finished difference. Result has 320 places, 920 transitions, 5724 flow [2024-11-16 23:38:07,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4034, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5724, PETRI_PLACES=320, PETRI_TRANSITIONS=920} [2024-11-16 23:38:07,034 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 45 predicate places. [2024-11-16 23:38:07,035 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 920 transitions, 5724 flow [2024-11-16 23:38:07,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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 23:38:07,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:07,036 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, 1] [2024-11-16 23:38:07,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:38:07,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:07,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash 803652184, now seen corresponding path program 1 times [2024-11-16 23:38:07,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:07,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95819637] [2024-11-16 23:38:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:07,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:07,817 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 23:38:07,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:07,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95819637] [2024-11-16 23:38:07,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95819637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:07,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:07,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:07,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913295633] [2024-11-16 23:38:07,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:07,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:07,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:07,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:07,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:09,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:09,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 920 transitions, 5724 flow. Second operand has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:09,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:09,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:09,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:14,324 INFO L124 PetriNetUnfolderBase]: 4094/12842 cut-off events. [2024-11-16 23:38:14,324 INFO L125 PetriNetUnfolderBase]: For 16038/16357 co-relation queries the response was YES. [2024-11-16 23:38:14,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38420 conditions, 12842 events. 4094/12842 cut-off events. For 16038/16357 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 106615 event pairs, 1266 based on Foata normal form. 147/12287 useless extension candidates. Maximal degree in co-relation 38271. Up to 4180 conditions per place. [2024-11-16 23:38:14,419 INFO L140 encePairwiseOnDemand]: 217/274 looper letters, 921 selfloop transitions, 276 changer transitions 0/1417 dead transitions. [2024-11-16 23:38:14,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 1417 transitions, 11034 flow [2024-11-16 23:38:14,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 23:38:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-16 23:38:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5573 transitions. [2024-11-16 23:38:14,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6561101954320697 [2024-11-16 23:38:14,436 INFO L175 Difference]: Start difference. First operand has 320 places, 920 transitions, 5724 flow. Second operand 31 states and 5573 transitions. [2024-11-16 23:38:14,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 1417 transitions, 11034 flow [2024-11-16 23:38:14,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1417 transitions, 10674 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-11-16 23:38:14,692 INFO L231 Difference]: Finished difference. Result has 375 places, 1027 transitions, 7336 flow [2024-11-16 23:38:14,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=5364, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7336, PETRI_PLACES=375, PETRI_TRANSITIONS=1027} [2024-11-16 23:38:14,693 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 100 predicate places. [2024-11-16 23:38:14,694 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 1027 transitions, 7336 flow [2024-11-16 23:38:14,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:14,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:14,695 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, 1] [2024-11-16 23:38:14,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:38:14,696 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:14,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:14,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1614455980, now seen corresponding path program 2 times [2024-11-16 23:38:14,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:14,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61534217] [2024-11-16 23:38:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:14,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:15,327 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 23:38:15,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:15,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61534217] [2024-11-16 23:38:15,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61534217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:15,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:15,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200073756] [2024-11-16 23:38:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:15,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:15,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:15,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:17,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:17,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1027 transitions, 7336 flow. Second operand has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:17,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:17,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:17,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:21,658 INFO L124 PetriNetUnfolderBase]: 5087/15795 cut-off events. [2024-11-16 23:38:21,659 INFO L125 PetriNetUnfolderBase]: For 28888/29218 co-relation queries the response was YES. [2024-11-16 23:38:21,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52619 conditions, 15795 events. 5087/15795 cut-off events. For 28888/29218 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 136810 event pairs, 1290 based on Foata normal form. 37/15050 useless extension candidates. Maximal degree in co-relation 52444. Up to 2883 conditions per place. [2024-11-16 23:38:21,784 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1340 selfloop transitions, 200 changer transitions 0/1760 dead transitions. [2024-11-16 23:38:21,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1760 transitions, 16170 flow [2024-11-16 23:38:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 23:38:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-16 23:38:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3968 transitions. [2024-11-16 23:38:21,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6582614465826144 [2024-11-16 23:38:21,794 INFO L175 Difference]: Start difference. First operand has 375 places, 1027 transitions, 7336 flow. Second operand 22 states and 3968 transitions. [2024-11-16 23:38:21,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1760 transitions, 16170 flow [2024-11-16 23:38:22,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1760 transitions, 15960 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-11-16 23:38:22,034 INFO L231 Difference]: Finished difference. Result has 405 places, 1171 transitions, 9473 flow [2024-11-16 23:38:22,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=7196, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1027, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=868, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9473, PETRI_PLACES=405, PETRI_TRANSITIONS=1171} [2024-11-16 23:38:22,038 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 130 predicate places. [2024-11-16 23:38:22,038 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 1171 transitions, 9473 flow [2024-11-16 23:38:22,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:22,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:22,040 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, 1] [2024-11-16 23:38:22,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:38:22,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:22,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:22,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1093034684, now seen corresponding path program 1 times [2024-11-16 23:38:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:22,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768885862] [2024-11-16 23:38:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:22,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:22,662 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 23:38:22,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768885862] [2024-11-16 23:38:22,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768885862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:22,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:22,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:22,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092851028] [2024-11-16 23:38:22,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:22,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:22,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:22,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:24,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:24,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 1171 transitions, 9473 flow. Second operand has 15 states, 15 states have (on average 160.8) internal successors, (2412), 15 states have internal predecessors, (2412), 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 23:38:24,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:24,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:24,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:29,191 INFO L124 PetriNetUnfolderBase]: 6141/18344 cut-off events. [2024-11-16 23:38:29,191 INFO L125 PetriNetUnfolderBase]: For 47791/48140 co-relation queries the response was YES. [2024-11-16 23:38:29,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67178 conditions, 18344 events. 6141/18344 cut-off events. For 47791/48140 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 162055 event pairs, 854 based on Foata normal form. 93/17679 useless extension candidates. Maximal degree in co-relation 66990. Up to 5066 conditions per place. [2024-11-16 23:38:29,525 INFO L140 encePairwiseOnDemand]: 222/274 looper letters, 1517 selfloop transitions, 209 changer transitions 0/1976 dead transitions. [2024-11-16 23:38:29,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1976 transitions, 20179 flow [2024-11-16 23:38:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 23:38:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-16 23:38:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4005 transitions. [2024-11-16 23:38:29,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6643994691439947 [2024-11-16 23:38:29,537 INFO L175 Difference]: Start difference. First operand has 405 places, 1171 transitions, 9473 flow. Second operand 22 states and 4005 transitions. [2024-11-16 23:38:29,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1976 transitions, 20179 flow [2024-11-16 23:38:29,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1976 transitions, 19908 flow, removed 109 selfloop flow, removed 2 redundant places. [2024-11-16 23:38:29,880 INFO L231 Difference]: Finished difference. Result has 439 places, 1316 transitions, 11528 flow [2024-11-16 23:38:29,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=9270, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11528, PETRI_PLACES=439, PETRI_TRANSITIONS=1316} [2024-11-16 23:38:29,882 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 164 predicate places. [2024-11-16 23:38:29,882 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 1316 transitions, 11528 flow [2024-11-16 23:38:29,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 160.8) internal successors, (2412), 15 states have internal predecessors, (2412), 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 23:38:29,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:29,884 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, 1] [2024-11-16 23:38:29,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:38:29,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:29,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2067172598, now seen corresponding path program 3 times [2024-11-16 23:38:29,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:29,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502176000] [2024-11-16 23:38:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:29,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:30,549 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 23:38:30,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:30,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502176000] [2024-11-16 23:38:30,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502176000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:30,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:30,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:30,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724203972] [2024-11-16 23:38:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:30,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:30,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:30,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:30,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:32,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:32,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 1316 transitions, 11528 flow. Second operand has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:32,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:32,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:32,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:38,342 INFO L124 PetriNetUnfolderBase]: 7132/21279 cut-off events. [2024-11-16 23:38:38,342 INFO L125 PetriNetUnfolderBase]: For 65593/66331 co-relation queries the response was YES. [2024-11-16 23:38:38,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82873 conditions, 21279 events. 7132/21279 cut-off events. For 65593/66331 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 194215 event pairs, 1468 based on Foata normal form. 124/20479 useless extension candidates. Maximal degree in co-relation 82666. Up to 4103 conditions per place. [2024-11-16 23:38:38,538 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1513 selfloop transitions, 248 changer transitions 0/2008 dead transitions. [2024-11-16 23:38:38,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 2008 transitions, 21332 flow [2024-11-16 23:38:38,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:38:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:38:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3784 transitions. [2024-11-16 23:38:38,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6576294751477233 [2024-11-16 23:38:38,543 INFO L175 Difference]: Start difference. First operand has 439 places, 1316 transitions, 11528 flow. Second operand 21 states and 3784 transitions. [2024-11-16 23:38:38,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 2008 transitions, 21332 flow [2024-11-16 23:38:39,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 2008 transitions, 21226 flow, removed 32 selfloop flow, removed 2 redundant places. [2024-11-16 23:38:39,161 INFO L231 Difference]: Finished difference. Result has 471 places, 1430 transitions, 14084 flow [2024-11-16 23:38:39,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=11473, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14084, PETRI_PLACES=471, PETRI_TRANSITIONS=1430} [2024-11-16 23:38:39,163 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 196 predicate places. [2024-11-16 23:38:39,163 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 1430 transitions, 14084 flow [2024-11-16 23:38:39,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:39,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:39,164 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, 1] [2024-11-16 23:38:39,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:38:39,164 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:39,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:39,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2067063368, now seen corresponding path program 2 times [2024-11-16 23:38:39,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:39,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385018584] [2024-11-16 23:38:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:39,707 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 23:38:39,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:39,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385018584] [2024-11-16 23:38:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385018584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:39,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:39,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846351644] [2024-11-16 23:38:39,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:39,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:39,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:39,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:41,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:41,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 1430 transitions, 14084 flow. Second operand has 15 states, 15 states have (on average 160.8) internal successors, (2412), 15 states have internal predecessors, (2412), 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 23:38:41,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:41,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:41,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:38:49,372 INFO L124 PetriNetUnfolderBase]: 8200/23931 cut-off events. [2024-11-16 23:38:49,373 INFO L125 PetriNetUnfolderBase]: For 97059/97674 co-relation queries the response was YES. [2024-11-16 23:38:49,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100693 conditions, 23931 events. 8200/23931 cut-off events. For 97059/97674 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 222459 event pairs, 1085 based on Foata normal form. 161/23186 useless extension candidates. Maximal degree in co-relation 100472. Up to 5996 conditions per place. [2024-11-16 23:38:49,662 INFO L140 encePairwiseOnDemand]: 222/274 looper letters, 1668 selfloop transitions, 219 changer transitions 0/2158 dead transitions. [2024-11-16 23:38:49,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 2158 transitions, 25393 flow [2024-11-16 23:38:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:38:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:38:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3810 transitions. [2024-11-16 23:38:49,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.662148070907195 [2024-11-16 23:38:49,666 INFO L175 Difference]: Start difference. First operand has 471 places, 1430 transitions, 14084 flow. Second operand 21 states and 3810 transitions. [2024-11-16 23:38:49,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 2158 transitions, 25393 flow [2024-11-16 23:38:50,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 2158 transitions, 24965 flow, removed 152 selfloop flow, removed 6 redundant places. [2024-11-16 23:38:50,593 INFO L231 Difference]: Finished difference. Result has 499 places, 1551 transitions, 16274 flow [2024-11-16 23:38:50,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=13709, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=16274, PETRI_PLACES=499, PETRI_TRANSITIONS=1551} [2024-11-16 23:38:50,595 INFO L277 CegarLoopForPetriNet]: 275 programPoint places, 224 predicate places. [2024-11-16 23:38:50,595 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 1551 transitions, 16274 flow [2024-11-16 23:38:50,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 160.8) internal successors, (2412), 15 states have internal predecessors, (2412), 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 23:38:50,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:38:50,596 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, 1] [2024-11-16 23:38:50,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:38:50,596 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:38:50,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:38:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash 257307894, now seen corresponding path program 4 times [2024-11-16 23:38:50,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:38:50,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214859380] [2024-11-16 23:38:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:38:50,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:38:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:38:51,420 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 23:38:51,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:38:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214859380] [2024-11-16 23:38:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214859380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:38:51,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:38:51,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 23:38:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921785838] [2024-11-16 23:38:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:38:51,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 23:38:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:38:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 23:38:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:38:53,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 274 [2024-11-16 23:38:53,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1551 transitions, 16274 flow. Second operand has 15 states, 15 states have (on average 160.86666666666667) internal successors, (2413), 15 states have internal predecessors, (2413), 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 23:38:53,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:38:53,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 274 [2024-11-16 23:38:53,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:39:02,382 INFO L124 PetriNetUnfolderBase]: 9200/27001 cut-off events. [2024-11-16 23:39:02,383 INFO L125 PetriNetUnfolderBase]: For 130005/131152 co-relation queries the response was YES. [2024-11-16 23:39:02,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118330 conditions, 27001 events. 9200/27001 cut-off events. For 130005/131152 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 257872 event pairs, 1777 based on Foata normal form. 188/26109 useless extension candidates. Maximal degree in co-relation 118092. Up to 10222 conditions per place. [2024-11-16 23:39:02,717 INFO L140 encePairwiseOnDemand]: 216/274 looper letters, 1673 selfloop transitions, 277 changer transitions 0/2220 dead transitions. [2024-11-16 23:39:02,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2220 transitions, 26994 flow [2024-11-16 23:39:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:39:02,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:39:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3770 transitions. [2024-11-16 23:39:02,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6551963851233924 [2024-11-16 23:39:02,721 INFO L175 Difference]: Start difference. First operand has 499 places, 1551 transitions, 16274 flow. Second operand 21 states and 3770 transitions. [2024-11-16 23:39:02,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2220 transitions, 26994 flow