./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f 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_24-evilcollapse_nr.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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:31:04,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:31:04,639 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:31:04,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:31:04,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:31:04,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:31:04,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:31:04,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:31:04,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:31:04,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:31:04,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:31:04,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:31:04,666 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:31:04,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:31:04,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:31:04,669 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:31:04,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:31:04,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:31:04,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:31:04,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:31:04,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:31:04,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:31:04,674 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:31:04,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:31:04,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:31:04,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:31:04,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:31:04,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:31:04,675 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:31:04,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:31:04,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:31:04,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:31:04,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:31:04,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:31:04,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:31:04,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:31:04,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:31:04,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:31:04,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:31:04,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:31:04,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:31:04,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2024-11-10 14:31:04,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:31:04,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:31:04,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:31:04,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:31:04,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:31:04,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-11-10 14:31:06,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:31:06,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:31:06,491 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-11-10 14:31:06,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6412cc397/f4ad48e90b0f42128a81039594b8a211/FLAGa97711274 [2024-11-10 14:31:06,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6412cc397/f4ad48e90b0f42128a81039594b8a211 [2024-11-10 14:31:06,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:31:06,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:31:06,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:31:06,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:31:06,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:31:06,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:31:06" (1/1) ... [2024-11-10 14:31:06,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4632c016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:06, skipping insertion in model container [2024-11-10 14:31:06,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:31:06" (1/1) ... [2024-11-10 14:31:06,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:31:07,153 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,154 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,155 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,157 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:31:07,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:31:07,306 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,314 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,315 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,315 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:31:07,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:31:07,389 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:31:07,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07 WrapperNode [2024-11-10 14:31:07,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:31:07,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:31:07,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:31:07,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:31:07,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,439 INFO L138 Inliner]: procedures = 275, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 317 [2024-11-10 14:31:07,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:31:07,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:31:07,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:31:07,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:31:07,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,468 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:31:07,476 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:31:07,476 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:31:07,476 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:31:07,477 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (1/1) ... [2024-11-10 14:31:07,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:31:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:07,508 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) [2024-11-10 14:31:07,515 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 [2024-11-10 14:31:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-10 14:31:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-10 14:31:07,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:31:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:31:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:31:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:31:07,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:31:07,556 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:31:07,676 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:31:07,678 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:31:08,106 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:31:08,106 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:31:08,135 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:31:08,135 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:31:08,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:31:08 BoogieIcfgContainer [2024-11-10 14:31:08,135 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:31:08,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:31:08,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:31:08,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:31:08,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:31:06" (1/3) ... [2024-11-10 14:31:08,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269e561d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:31:08, skipping insertion in model container [2024-11-10 14:31:08,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:31:07" (2/3) ... [2024-11-10 14:31:08,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269e561d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:31:08, skipping insertion in model container [2024-11-10 14:31:08,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:31:08" (3/3) ... [2024-11-10 14:31:08,141 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2024-11-10 14:31:08,153 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:31:08,153 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 14:31:08,153 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:31:08,256 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:31:08,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 445 transitions, 898 flow [2024-11-10 14:31:08,476 INFO L124 PetriNetUnfolderBase]: 17/443 cut-off events. [2024-11-10 14:31:08,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:08,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 443 events. 17/443 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 825 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 366. Up to 2 conditions per place. [2024-11-10 14:31:08,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 445 transitions, 898 flow [2024-11-10 14:31:08,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 443 transitions, 892 flow [2024-11-10 14:31:08,501 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:31:08,506 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;@75fee048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:31:08,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-10 14:31:08,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:31:08,524 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2024-11-10 14:31:08,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:08,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:08,525 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, 1, 1, 1] [2024-11-10 14:31:08,526 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:08,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:08,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1308260022, now seen corresponding path program 1 times [2024-11-10 14:31:08,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:08,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013282782] [2024-11-10 14:31:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:08,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013282782] [2024-11-10 14:31:09,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013282782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:09,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:09,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467011810] [2024-11-10 14:31:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:09,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:09,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:09,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 445 [2024-11-10 14:31:09,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 443 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 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) [2024-11-10 14:31:09,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:09,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 445 [2024-11-10 14:31:09,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:10,093 INFO L124 PetriNetUnfolderBase]: 450/1958 cut-off events. [2024-11-10 14:31:10,093 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-10 14:31:10,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1958 events. 450/1958 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11952 event pairs, 342 based on Foata normal form. 156/1902 useless extension candidates. Maximal degree in co-relation 2525. Up to 854 conditions per place. [2024-11-10 14:31:10,106 INFO L140 encePairwiseOnDemand]: 423/445 looper letters, 80 selfloop transitions, 10 changer transitions 2/431 dead transitions. [2024-11-10 14:31:10,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 431 transitions, 1048 flow [2024-11-10 14:31:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2160 transitions. [2024-11-10 14:31:10,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8089887640449438 [2024-11-10 14:31:10,124 INFO L175 Difference]: Start difference. First operand has 433 places, 443 transitions, 892 flow. Second operand 6 states and 2160 transitions. [2024-11-10 14:31:10,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 431 transitions, 1048 flow [2024-11-10 14:31:10,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 431 transitions, 1046 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:31:10,134 INFO L231 Difference]: Finished difference. Result has 434 places, 429 transitions, 882 flow [2024-11-10 14:31:10,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=882, PETRI_PLACES=434, PETRI_TRANSITIONS=429} [2024-11-10 14:31:10,139 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 1 predicate places. [2024-11-10 14:31:10,139 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 429 transitions, 882 flow [2024-11-10 14:31:10,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 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) [2024-11-10 14:31:10,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:10,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:10,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:31:10,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:10,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:10,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1160411881, now seen corresponding path program 1 times [2024-11-10 14:31:10,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:10,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679553849] [2024-11-10 14:31:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:10,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:10,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679553849] [2024-11-10 14:31:10,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679553849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:10,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:10,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93388969] [2024-11-10 14:31:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:10,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:10,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:11,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 445 [2024-11-10 14:31:11,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 429 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 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) [2024-11-10 14:31:11,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:11,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 445 [2024-11-10 14:31:11,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:11,315 INFO L124 PetriNetUnfolderBase]: 450/1954 cut-off events. [2024-11-10 14:31:11,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:11,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1954 events. 450/1954 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11891 event pairs, 342 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 2695. Up to 854 conditions per place. [2024-11-10 14:31:11,324 INFO L140 encePairwiseOnDemand]: 433/445 looper letters, 80 selfloop transitions, 10 changer transitions 0/427 dead transitions. [2024-11-10 14:31:11,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 427 transitions, 1058 flow [2024-11-10 14:31:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2150 transitions. [2024-11-10 14:31:11,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052434456928839 [2024-11-10 14:31:11,328 INFO L175 Difference]: Start difference. First operand has 434 places, 429 transitions, 882 flow. Second operand 6 states and 2150 transitions. [2024-11-10 14:31:11,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 427 transitions, 1058 flow [2024-11-10 14:31:11,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 427 transitions, 1038 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:11,335 INFO L231 Difference]: Finished difference. Result has 430 places, 427 transitions, 878 flow [2024-11-10 14:31:11,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=430, PETRI_TRANSITIONS=427} [2024-11-10 14:31:11,337 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -3 predicate places. [2024-11-10 14:31:11,337 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 427 transitions, 878 flow [2024-11-10 14:31:11,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 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) [2024-11-10 14:31:11,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:11,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:11,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:31:11,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:11,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1080269407, now seen corresponding path program 1 times [2024-11-10 14:31:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:11,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167177146] [2024-11-10 14:31:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:11,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:11,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167177146] [2024-11-10 14:31:11,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167177146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:11,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:11,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:31:11,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107468553] [2024-11-10 14:31:11,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:11,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:31:11,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:31:11,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:31:11,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 445 [2024-11-10 14:31:11,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 427 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2024-11-10 14:31:11,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:11,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 445 [2024-11-10 14:31:11,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:11,557 INFO L124 PetriNetUnfolderBase]: 30/735 cut-off events. [2024-11-10 14:31:11,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:11,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 735 events. 30/735 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2658 event pairs, 18 based on Foata normal form. 1/681 useless extension candidates. Maximal degree in co-relation 503. Up to 45 conditions per place. [2024-11-10 14:31:11,560 INFO L140 encePairwiseOnDemand]: 442/445 looper letters, 11 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2024-11-10 14:31:11,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 428 transitions, 906 flow [2024-11-10 14:31:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:31:11,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:31:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2024-11-10 14:31:11,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9610486891385768 [2024-11-10 14:31:11,563 INFO L175 Difference]: Start difference. First operand has 430 places, 427 transitions, 878 flow. Second operand 3 states and 1283 transitions. [2024-11-10 14:31:11,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 428 transitions, 906 flow [2024-11-10 14:31:11,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 428 transitions, 886 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:11,571 INFO L231 Difference]: Finished difference. Result has 428 places, 428 transitions, 870 flow [2024-11-10 14:31:11,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=428, PETRI_TRANSITIONS=428} [2024-11-10 14:31:11,573 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -5 predicate places. [2024-11-10 14:31:11,573 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 428 transitions, 870 flow [2024-11-10 14:31:11,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2024-11-10 14:31:11,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:11,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:11,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:31:11,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:11,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1837986903, now seen corresponding path program 1 times [2024-11-10 14:31:11,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:11,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373982689] [2024-11-10 14:31:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:11,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:11,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373982689] [2024-11-10 14:31:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373982689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:11,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:11,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:11,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013565240] [2024-11-10 14:31:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:11,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:11,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:12,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 445 [2024-11-10 14:31:12,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 428 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 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) [2024-11-10 14:31:12,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:12,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 445 [2024-11-10 14:31:12,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:12,497 INFO L124 PetriNetUnfolderBase]: 451/2073 cut-off events. [2024-11-10 14:31:12,497 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:31:12,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3033 conditions, 2073 events. 451/2073 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12495 event pairs, 342 based on Foata normal form. 0/1861 useless extension candidates. Maximal degree in co-relation 2771. Up to 902 conditions per place. [2024-11-10 14:31:12,552 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 87 selfloop transitions, 5 changer transitions 0/427 dead transitions. [2024-11-10 14:31:12,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 427 transitions, 1052 flow [2024-11-10 14:31:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2145 transitions. [2024-11-10 14:31:12,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8033707865168539 [2024-11-10 14:31:12,557 INFO L175 Difference]: Start difference. First operand has 428 places, 428 transitions, 870 flow. Second operand 6 states and 2145 transitions. [2024-11-10 14:31:12,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 427 transitions, 1052 flow [2024-11-10 14:31:12,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 427 transitions, 1050 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:31:12,564 INFO L231 Difference]: Finished difference. Result has 431 places, 427 transitions, 876 flow [2024-11-10 14:31:12,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=876, PETRI_PLACES=431, PETRI_TRANSITIONS=427} [2024-11-10 14:31:12,566 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -2 predicate places. [2024-11-10 14:31:12,566 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 427 transitions, 876 flow [2024-11-10 14:31:12,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 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) [2024-11-10 14:31:12,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:12,568 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:12,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:31:12,569 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:12,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1849996765, now seen corresponding path program 1 times [2024-11-10 14:31:12,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108777428] [2024-11-10 14:31:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:12,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:12,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:12,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108777428] [2024-11-10 14:31:12,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108777428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:12,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:12,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:31:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387376453] [2024-11-10 14:31:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:12,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:31:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:31:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:31:12,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 445 [2024-11-10 14:31:12,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 427 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2024-11-10 14:31:12,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:12,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 445 [2024-11-10 14:31:12,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:12,721 INFO L124 PetriNetUnfolderBase]: 30/923 cut-off events. [2024-11-10 14:31:12,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:12,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 923 events. 30/923 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2695 event pairs, 18 based on Foata normal form. 2/864 useless extension candidates. Maximal degree in co-relation 582. Up to 49 conditions per place. [2024-11-10 14:31:12,724 INFO L140 encePairwiseOnDemand]: 442/445 looper letters, 11 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2024-11-10 14:31:12,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 428 transitions, 904 flow [2024-11-10 14:31:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:31:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:31:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2024-11-10 14:31:12,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9610486891385768 [2024-11-10 14:31:12,727 INFO L175 Difference]: Start difference. First operand has 431 places, 427 transitions, 876 flow. Second operand 3 states and 1283 transitions. [2024-11-10 14:31:12,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 428 transitions, 904 flow [2024-11-10 14:31:12,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 428 transitions, 894 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:12,732 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 878 flow [2024-11-10 14:31:12,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2024-11-10 14:31:12,734 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -4 predicate places. [2024-11-10 14:31:12,734 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 878 flow [2024-11-10 14:31:12,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2024-11-10 14:31:12,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:12,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:12,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:31:12,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:12,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1273319364, now seen corresponding path program 1 times [2024-11-10 14:31:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:12,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906926840] [2024-11-10 14:31:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:13,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906926840] [2024-11-10 14:31:13,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906926840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:13,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:13,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:13,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130049659] [2024-11-10 14:31:13,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:13,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:13,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:13,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:13,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 445 [2024-11-10 14:31:13,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 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) [2024-11-10 14:31:13,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:13,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 445 [2024-11-10 14:31:13,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:13,770 INFO L124 PetriNetUnfolderBase]: 76/1244 cut-off events. [2024-11-10 14:31:13,771 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:31:13,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1244 events. 76/1244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4793 event pairs, 42 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 1030. Up to 263 conditions per place. [2024-11-10 14:31:13,775 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 54 selfloop transitions, 5 changer transitions 0/427 dead transitions. [2024-11-10 14:31:13,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 427 transitions, 994 flow [2024-11-10 14:31:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2310 transitions. [2024-11-10 14:31:13,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8651685393258427 [2024-11-10 14:31:13,779 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 878 flow. Second operand 6 states and 2310 transitions. [2024-11-10 14:31:13,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 427 transitions, 994 flow [2024-11-10 14:31:13,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 427 transitions, 992 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:31:13,784 INFO L231 Difference]: Finished difference. Result has 432 places, 427 transitions, 884 flow [2024-11-10 14:31:13,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=432, PETRI_TRANSITIONS=427} [2024-11-10 14:31:13,787 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -1 predicate places. [2024-11-10 14:31:13,787 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 427 transitions, 884 flow [2024-11-10 14:31:13,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 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) [2024-11-10 14:31:13,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:13,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:13,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:31:13,789 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:13,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash 986899096, now seen corresponding path program 1 times [2024-11-10 14:31:13,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:13,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566237746] [2024-11-10 14:31:13,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:13,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566237746] [2024-11-10 14:31:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566237746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689968636] [2024-11-10 14:31:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:14,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:14,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 445 [2024-11-10 14:31:14,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 427 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-10 14:31:14,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:14,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 445 [2024-11-10 14:31:14,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:14,747 INFO L124 PetriNetUnfolderBase]: 451/2260 cut-off events. [2024-11-10 14:31:14,747 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:31:14,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3324 conditions, 2260 events. 451/2260 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12789 event pairs, 342 based on Foata normal form. 0/2048 useless extension candidates. Maximal degree in co-relation 2820. Up to 968 conditions per place. [2024-11-10 14:31:14,755 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 87 selfloop transitions, 5 changer transitions 0/426 dead transitions. [2024-11-10 14:31:14,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 426 transitions, 1066 flow [2024-11-10 14:31:14,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2145 transitions. [2024-11-10 14:31:14,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8033707865168539 [2024-11-10 14:31:14,759 INFO L175 Difference]: Start difference. First operand has 432 places, 427 transitions, 884 flow. Second operand 6 states and 2145 transitions. [2024-11-10 14:31:14,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 426 transitions, 1066 flow [2024-11-10 14:31:14,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 426 transitions, 1056 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:14,764 INFO L231 Difference]: Finished difference. Result has 431 places, 426 transitions, 882 flow [2024-11-10 14:31:14,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=882, PETRI_PLACES=431, PETRI_TRANSITIONS=426} [2024-11-10 14:31:14,765 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -2 predicate places. [2024-11-10 14:31:14,765 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 426 transitions, 882 flow [2024-11-10 14:31:14,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 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) [2024-11-10 14:31:14,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:14,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:14,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:31:14,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:14,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1424347084, now seen corresponding path program 1 times [2024-11-10 14:31:14,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:14,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020034269] [2024-11-10 14:31:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:14,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:15,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020034269] [2024-11-10 14:31:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020034269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:15,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:15,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:15,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077013216] [2024-11-10 14:31:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:15,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:15,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:15,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 445 [2024-11-10 14:31:15,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 426 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 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) [2024-11-10 14:31:15,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:15,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 445 [2024-11-10 14:31:15,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:15,749 INFO L124 PetriNetUnfolderBase]: 451/2256 cut-off events. [2024-11-10 14:31:15,749 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:31:15,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 2256 events. 451/2256 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12802 event pairs, 342 based on Foata normal form. 0/2048 useless extension candidates. Maximal degree in co-relation 2836. Up to 952 conditions per place. [2024-11-10 14:31:15,758 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 83 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2024-11-10 14:31:15,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 425 transitions, 1056 flow [2024-11-10 14:31:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:15,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2165 transitions. [2024-11-10 14:31:15,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8108614232209738 [2024-11-10 14:31:15,763 INFO L175 Difference]: Start difference. First operand has 431 places, 426 transitions, 882 flow. Second operand 6 states and 2165 transitions. [2024-11-10 14:31:15,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 425 transitions, 1056 flow [2024-11-10 14:31:15,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 425 transitions, 1046 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:15,768 INFO L231 Difference]: Finished difference. Result has 430 places, 425 transitions, 880 flow [2024-11-10 14:31:15,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=880, PETRI_PLACES=430, PETRI_TRANSITIONS=425} [2024-11-10 14:31:15,769 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -3 predicate places. [2024-11-10 14:31:15,769 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 425 transitions, 880 flow [2024-11-10 14:31:15,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 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) [2024-11-10 14:31:15,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:15,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:15,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:31:15,771 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:15,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1066003623, now seen corresponding path program 1 times [2024-11-10 14:31:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80096145] [2024-11-10 14:31:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:16,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:16,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80096145] [2024-11-10 14:31:16,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80096145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:16,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:16,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:16,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886000298] [2024-11-10 14:31:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:16,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:16,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:16,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:16,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:16,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 445 [2024-11-10 14:31:16,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 425 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 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) [2024-11-10 14:31:16,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:16,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 445 [2024-11-10 14:31:16,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:16,782 INFO L124 PetriNetUnfolderBase]: 451/2252 cut-off events. [2024-11-10 14:31:16,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:31:16,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3300 conditions, 2252 events. 451/2252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12723 event pairs, 342 based on Foata normal form. 0/2048 useless extension candidates. Maximal degree in co-relation 2851. Up to 952 conditions per place. [2024-11-10 14:31:16,793 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 83 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2024-11-10 14:31:16,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 424 transitions, 1054 flow [2024-11-10 14:31:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2165 transitions. [2024-11-10 14:31:16,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8108614232209738 [2024-11-10 14:31:16,797 INFO L175 Difference]: Start difference. First operand has 430 places, 425 transitions, 880 flow. Second operand 6 states and 2165 transitions. [2024-11-10 14:31:16,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 424 transitions, 1054 flow [2024-11-10 14:31:16,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 424 transitions, 1044 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:16,802 INFO L231 Difference]: Finished difference. Result has 429 places, 424 transitions, 878 flow [2024-11-10 14:31:16,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=429, PETRI_TRANSITIONS=424} [2024-11-10 14:31:16,803 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -4 predicate places. [2024-11-10 14:31:16,803 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 424 transitions, 878 flow [2024-11-10 14:31:16,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 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) [2024-11-10 14:31:16,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:16,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:16,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:31:16,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:16,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:16,805 INFO L85 PathProgramCache]: Analyzing trace with hash -671804003, now seen corresponding path program 1 times [2024-11-10 14:31:16,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:16,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634969799] [2024-11-10 14:31:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:16,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:17,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:17,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634969799] [2024-11-10 14:31:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634969799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:17,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:17,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:31:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569376101] [2024-11-10 14:31:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:17,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:31:17,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 445 [2024-11-10 14:31:17,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 424 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 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) [2024-11-10 14:31:17,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:17,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 445 [2024-11-10 14:31:17,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:17,851 INFO L124 PetriNetUnfolderBase]: 451/2248 cut-off events. [2024-11-10 14:31:17,851 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:31:17,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3316 conditions, 2248 events. 451/2248 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12719 event pairs, 342 based on Foata normal form. 0/2048 useless extension candidates. Maximal degree in co-relation 2864. Up to 972 conditions per place. [2024-11-10 14:31:17,860 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 88 selfloop transitions, 5 changer transitions 0/423 dead transitions. [2024-11-10 14:31:17,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 423 transitions, 1062 flow [2024-11-10 14:31:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2140 transitions. [2024-11-10 14:31:17,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8014981273408239 [2024-11-10 14:31:17,864 INFO L175 Difference]: Start difference. First operand has 429 places, 424 transitions, 878 flow. Second operand 6 states and 2140 transitions. [2024-11-10 14:31:17,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 423 transitions, 1062 flow [2024-11-10 14:31:17,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 423 transitions, 1052 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:17,869 INFO L231 Difference]: Finished difference. Result has 428 places, 423 transitions, 876 flow [2024-11-10 14:31:17,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=876, PETRI_PLACES=428, PETRI_TRANSITIONS=423} [2024-11-10 14:31:17,870 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, -5 predicate places. [2024-11-10 14:31:17,870 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 423 transitions, 876 flow [2024-11-10 14:31:17,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 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) [2024-11-10 14:31:17,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:17,871 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:17,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:31:17,871 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:17,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:17,872 INFO L85 PathProgramCache]: Analyzing trace with hash 961900826, now seen corresponding path program 1 times [2024-11-10 14:31:17,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897763886] [2024-11-10 14:31:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:17,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:18,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:18,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897763886] [2024-11-10 14:31:18,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897763886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:18,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785458234] [2024-11-10 14:31:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:18,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:18,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:18,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:18,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:31:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:18,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:31:18,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:18,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:31:18,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:18,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785458234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:31:18,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:31:18,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:31:18,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928127866] [2024-11-10 14:31:18,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:31:18,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:31:18,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:31:18,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:31:18,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 445 [2024-11-10 14:31:18,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 423 transitions, 876 flow. Second operand has 10 states, 10 states have (on average 421.8) internal successors, (4218), 10 states have internal predecessors, (4218), 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) [2024-11-10 14:31:18,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:18,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 445 [2024-11-10 14:31:18,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:18,747 INFO L124 PetriNetUnfolderBase]: 30/1091 cut-off events. [2024-11-10 14:31:18,747 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 14:31:18,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 1091 events. 30/1091 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2031 event pairs, 18 based on Foata normal form. 4/1054 useless extension candidates. Maximal degree in co-relation 575. Up to 49 conditions per place. [2024-11-10 14:31:18,752 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 15 selfloop transitions, 9 changer transitions 0/431 dead transitions. [2024-11-10 14:31:18,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 431 transitions, 942 flow [2024-11-10 14:31:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:31:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:31:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3806 transitions. [2024-11-10 14:31:18,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9503121098626717 [2024-11-10 14:31:18,758 INFO L175 Difference]: Start difference. First operand has 428 places, 423 transitions, 876 flow. Second operand 9 states and 3806 transitions. [2024-11-10 14:31:18,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 431 transitions, 942 flow [2024-11-10 14:31:18,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 431 transitions, 932 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:18,765 INFO L231 Difference]: Finished difference. Result has 434 places, 429 transitions, 916 flow [2024-11-10 14:31:18,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=916, PETRI_PLACES=434, PETRI_TRANSITIONS=429} [2024-11-10 14:31:18,766 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 1 predicate places. [2024-11-10 14:31:18,766 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 429 transitions, 916 flow [2024-11-10 14:31:18,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 421.8) internal successors, (4218), 10 states have internal predecessors, (4218), 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) [2024-11-10 14:31:18,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:18,768 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:18,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 14:31:18,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-10 14:31:18,970 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:18,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash 910307248, now seen corresponding path program 1 times [2024-11-10 14:31:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895673347] [2024-11-10 14:31:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-10 14:31:19,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:19,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895673347] [2024-11-10 14:31:19,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895673347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:19,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816972259] [2024-11-10 14:31:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:19,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:19,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:19,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:19,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:31:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:19,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:31:19,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:19,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:31:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816972259] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:31:20,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:31:20,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-10 14:31:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446272867] [2024-11-10 14:31:20,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:31:20,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 14:31:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 14:31:20,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:31:20,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 445 [2024-11-10 14:31:20,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 429 transitions, 916 flow. Second operand has 19 states, 19 states have (on average 416.5263157894737) internal successors, (7914), 19 states have internal predecessors, (7914), 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) [2024-11-10 14:31:20,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:20,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 445 [2024-11-10 14:31:20,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:21,498 INFO L124 PetriNetUnfolderBase]: 31/2488 cut-off events. [2024-11-10 14:31:21,498 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-11-10 14:31:21,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 2488 events. 31/2488 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2031 event pairs, 18 based on Foata normal form. 13/2460 useless extension candidates. Maximal degree in co-relation 755. Up to 51 conditions per place. [2024-11-10 14:31:21,502 INFO L140 encePairwiseOnDemand]: 434/445 looper letters, 47 selfloop transitions, 68 changer transitions 0/515 dead transitions. [2024-11-10 14:31:21,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 515 transitions, 1592 flow [2024-11-10 14:31:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-10 14:31:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-10 14:31:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 26210 transitions. [2024-11-10 14:31:21,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9349028000713394 [2024-11-10 14:31:21,527 INFO L175 Difference]: Start difference. First operand has 434 places, 429 transitions, 916 flow. Second operand 63 states and 26210 transitions. [2024-11-10 14:31:21,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 515 transitions, 1592 flow [2024-11-10 14:31:21,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 515 transitions, 1550 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-10 14:31:21,535 INFO L231 Difference]: Finished difference. Result has 511 places, 491 transitions, 1430 flow [2024-11-10 14:31:21,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1430, PETRI_PLACES=511, PETRI_TRANSITIONS=491} [2024-11-10 14:31:21,536 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 78 predicate places. [2024-11-10 14:31:21,536 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 491 transitions, 1430 flow [2024-11-10 14:31:21,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 416.5263157894737) internal successors, (7914), 19 states have internal predecessors, (7914), 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) [2024-11-10 14:31:21,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:21,539 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:21,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:31:21,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-10 14:31:21,744 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:21,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1311325769, now seen corresponding path program 2 times [2024-11-10 14:31:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028607455] [2024-11-10 14:31:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:31:23,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:23,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028607455] [2024-11-10 14:31:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028607455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:23,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748414967] [2024-11-10 14:31:23,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:31:23,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:23,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:23,968 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:23,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:31:24,561 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:31:24,562 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:31:24,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:31:24,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:24,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:31:24,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:31:24,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:24,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:31:24,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:24,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:31:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8372 trivial. 0 not checked. [2024-11-10 14:31:24,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:31:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748414967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:24,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:31:24,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:31:24,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447141676] [2024-11-10 14:31:24,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:24,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:24,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:24,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:24,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:31:25,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 445 [2024-11-10 14:31:25,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 491 transitions, 1430 flow. Second operand has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 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) [2024-11-10 14:31:25,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:25,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 445 [2024-11-10 14:31:25,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:26,194 INFO L124 PetriNetUnfolderBase]: 77/2812 cut-off events. [2024-11-10 14:31:26,194 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2024-11-10 14:31:26,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3906 conditions, 2812 events. 77/2812 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4133 event pairs, 42 based on Foata normal form. 0/2729 useless extension candidates. Maximal degree in co-relation 1840. Up to 735 conditions per place. [2024-11-10 14:31:26,206 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 54 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2024-11-10 14:31:26,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 490 transitions, 1546 flow [2024-11-10 14:31:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2310 transitions. [2024-11-10 14:31:26,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8651685393258427 [2024-11-10 14:31:26,211 INFO L175 Difference]: Start difference. First operand has 511 places, 491 transitions, 1430 flow. Second operand 6 states and 2310 transitions. [2024-11-10 14:31:26,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 490 transitions, 1546 flow [2024-11-10 14:31:26,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 490 transitions, 1470 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-10 14:31:26,220 INFO L231 Difference]: Finished difference. Result has 508 places, 490 transitions, 1362 flow [2024-11-10 14:31:26,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1352, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=508, PETRI_TRANSITIONS=490} [2024-11-10 14:31:26,222 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 75 predicate places. [2024-11-10 14:31:26,222 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 490 transitions, 1362 flow [2024-11-10 14:31:26,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 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) [2024-11-10 14:31:26,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:26,227 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:26,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:31:26,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:26,428 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:26,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1575941677, now seen corresponding path program 2 times [2024-11-10 14:31:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:26,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22056604] [2024-11-10 14:31:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:26,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:31:29,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:29,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22056604] [2024-11-10 14:31:29,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22056604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:29,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231801091] [2024-11-10 14:31:29,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:31:29,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:29,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:29,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:29,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:31:29,877 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:31:29,877 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:31:29,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:31:29,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:29,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:31:29,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:31:29,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:29,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:31:30,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:30,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:31:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8372 trivial. 0 not checked. [2024-11-10 14:31:30,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:31:30,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231801091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:30,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:31:30,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:31:30,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518376410] [2024-11-10 14:31:30,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:30,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:30,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:30,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:31:31,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 445 [2024-11-10 14:31:31,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 490 transitions, 1362 flow. Second operand has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 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) [2024-11-10 14:31:31,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:31,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 445 [2024-11-10 14:31:31,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:31,802 INFO L124 PetriNetUnfolderBase]: 77/2811 cut-off events. [2024-11-10 14:31:31,802 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2024-11-10 14:31:31,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 2811 events. 77/2811 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4120 event pairs, 42 based on Foata normal form. 0/2729 useless extension candidates. Maximal degree in co-relation 3037. Up to 735 conditions per place. [2024-11-10 14:31:31,810 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 54 selfloop transitions, 5 changer transitions 0/489 dead transitions. [2024-11-10 14:31:31,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 489 transitions, 1478 flow [2024-11-10 14:31:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2310 transitions. [2024-11-10 14:31:31,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8651685393258427 [2024-11-10 14:31:31,814 INFO L175 Difference]: Start difference. First operand has 508 places, 490 transitions, 1362 flow. Second operand 6 states and 2310 transitions. [2024-11-10 14:31:31,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 489 transitions, 1478 flow [2024-11-10 14:31:31,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 489 transitions, 1468 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:31,825 INFO L231 Difference]: Finished difference. Result has 507 places, 489 transitions, 1360 flow [2024-11-10 14:31:31,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=507, PETRI_TRANSITIONS=489} [2024-11-10 14:31:31,826 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 74 predicate places. [2024-11-10 14:31:31,827 INFO L471 AbstractCegarLoop]: Abstraction has has 507 places, 489 transitions, 1360 flow [2024-11-10 14:31:31,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 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) [2024-11-10 14:31:31,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:31,828 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:31,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:31:32,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:32,029 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:32,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash -548511269, now seen corresponding path program 1 times [2024-11-10 14:31:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511184501] [2024-11-10 14:31:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:31:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:34,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511184501] [2024-11-10 14:31:34,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511184501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:34,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534448700] [2024-11-10 14:31:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:34,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:34,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:34,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:31:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:35,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 5718 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:31:35,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:31:36,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:31:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:31:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534448700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:31:37,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:31:37,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 14:31:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917168390] [2024-11-10 14:31:37,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:31:37,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 14:31:37,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:37,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 14:31:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 14:31:37,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 445 [2024-11-10 14:31:37,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 489 transitions, 1360 flow. Second operand has 34 states, 34 states have (on average 422.1764705882353) internal successors, (14354), 34 states have internal predecessors, (14354), 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) [2024-11-10 14:31:37,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:37,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 445 [2024-11-10 14:31:37,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:39,813 INFO L124 PetriNetUnfolderBase]: 31/4670 cut-off events. [2024-11-10 14:31:39,813 INFO L125 PetriNetUnfolderBase]: For 3870/3870 co-relation queries the response was YES. [2024-11-10 14:31:39,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5481 conditions, 4670 events. 31/4670 cut-off events. For 3870/3870 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2031 event pairs, 18 based on Foata normal form. 24/4655 useless extension candidates. Maximal degree in co-relation 5440. Up to 78 conditions per place. [2024-11-10 14:31:39,823 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 47 selfloop transitions, 135 changer transitions 0/590 dead transitions. [2024-11-10 14:31:39,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 590 transitions, 2488 flow [2024-11-10 14:31:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-10 14:31:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-10 14:31:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 18980 transitions. [2024-11-10 14:31:39,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9478152309612984 [2024-11-10 14:31:39,832 INFO L175 Difference]: Start difference. First operand has 507 places, 489 transitions, 1360 flow. Second operand 45 states and 18980 transitions. [2024-11-10 14:31:39,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 590 transitions, 2488 flow [2024-11-10 14:31:39,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 590 transitions, 2478 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:31:39,843 INFO L231 Difference]: Finished difference. Result has 555 places, 564 transitions, 2224 flow [2024-11-10 14:31:39,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2224, PETRI_PLACES=555, PETRI_TRANSITIONS=564} [2024-11-10 14:31:39,844 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 122 predicate places. [2024-11-10 14:31:39,844 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 564 transitions, 2224 flow [2024-11-10 14:31:39,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 422.1764705882353) internal successors, (14354), 34 states have internal predecessors, (14354), 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) [2024-11-10 14:31:39,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:39,847 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:39,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:31:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 14:31:40,052 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:40,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1009664987, now seen corresponding path program 2 times [2024-11-10 14:31:40,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:40,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717742517] [2024-11-10 14:31:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:49,227 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-10 14:31:49,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:49,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717742517] [2024-11-10 14:31:49,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717742517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:49,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615013887] [2024-11-10 14:31:49,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:31:49,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:49,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:49,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:31:49,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:31:50,384 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:31:50,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:31:50,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:31:50,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:50,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:31:50,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:31:50,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:50,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:31:50,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:31:50,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:31:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39740 trivial. 0 not checked. [2024-11-10 14:31:50,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:31:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615013887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:50,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:31:50,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-10 14:31:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141188634] [2024-11-10 14:31:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:50,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:31:50,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:50,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:31:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 14:31:51,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 445 [2024-11-10 14:31:51,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 564 transitions, 2224 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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) [2024-11-10 14:31:51,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:51,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 445 [2024-11-10 14:31:51,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:54,153 INFO L124 PetriNetUnfolderBase]: 201/5601 cut-off events. [2024-11-10 14:31:54,154 INFO L125 PetriNetUnfolderBase]: For 1341/1341 co-relation queries the response was YES. [2024-11-10 14:31:54,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8051 conditions, 5601 events. 201/5601 cut-off events. For 1341/1341 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9300 event pairs, 54 based on Foata normal form. 0/5458 useless extension candidates. Maximal degree in co-relation 4152. Up to 1548 conditions per place. [2024-11-10 14:31:54,163 INFO L140 encePairwiseOnDemand]: 433/445 looper letters, 71 selfloop transitions, 23 changer transitions 0/599 dead transitions. [2024-11-10 14:31:54,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 560 places, 599 transitions, 2490 flow [2024-11-10 14:31:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:31:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:31:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2351 transitions. [2024-11-10 14:31:54,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8805243445692884 [2024-11-10 14:31:54,165 INFO L175 Difference]: Start difference. First operand has 555 places, 564 transitions, 2224 flow. Second operand 6 states and 2351 transitions. [2024-11-10 14:31:54,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 560 places, 599 transitions, 2490 flow [2024-11-10 14:31:54,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 599 transitions, 2382 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-10 14:31:54,178 INFO L231 Difference]: Finished difference. Result has 547 places, 586 transitions, 2274 flow [2024-11-10 14:31:54,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2274, PETRI_PLACES=547, PETRI_TRANSITIONS=586} [2024-11-10 14:31:54,179 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 114 predicate places. [2024-11-10 14:31:54,179 INFO L471 AbstractCegarLoop]: Abstraction has has 547 places, 586 transitions, 2274 flow [2024-11-10 14:31:54,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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) [2024-11-10 14:31:54,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:54,180 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:54,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:31:54,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 14:31:54,385 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:54,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1581289944, now seen corresponding path program 1 times [2024-11-10 14:31:54,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:54,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601337774] [2024-11-10 14:31:54,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:54,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-10 14:32:02,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:32:02,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601337774] [2024-11-10 14:32:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601337774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:32:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77909090] [2024-11-10 14:32:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:02,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:32:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:32:02,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:32:02,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:32:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:05,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 11639 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 14:32:05,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:32:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-10 14:32:06,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:32:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-10 14:32:08,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77909090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:32:08,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:32:08,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-10 14:32:08,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717868774] [2024-11-10 14:32:08,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:32:08,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-10 14:32:08,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:32:08,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-10 14:32:08,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 14:32:08,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 445 [2024-11-10 14:32:08,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 586 transitions, 2274 flow. Second operand has 63 states, 63 states have (on average 422.14285714285717) internal successors, (26595), 63 states have internal predecessors, (26595), 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) [2024-11-10 14:32:08,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:32:08,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 445 [2024-11-10 14:32:08,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:32:15,870 INFO L124 PetriNetUnfolderBase]: 187/9858 cut-off events. [2024-11-10 14:32:15,870 INFO L125 PetriNetUnfolderBase]: For 15538/15542 co-relation queries the response was YES. [2024-11-10 14:32:15,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12201 conditions, 9858 events. 187/9858 cut-off events. For 15538/15542 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9871 event pairs, 55 based on Foata normal form. 45/9733 useless extension candidates. Maximal degree in co-relation 10829. Up to 168 conditions per place. [2024-11-10 14:32:15,888 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 92 selfloop transitions, 270 changer transitions 0/792 dead transitions. [2024-11-10 14:32:15,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 792 transitions, 5184 flow [2024-11-10 14:32:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-10 14:32:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-11-10 14:32:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 37947 transitions. [2024-11-10 14:32:15,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9474906367041198 [2024-11-10 14:32:15,911 INFO L175 Difference]: Start difference. First operand has 547 places, 586 transitions, 2274 flow. Second operand 90 states and 37947 transitions. [2024-11-10 14:32:15,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 792 transitions, 5184 flow [2024-11-10 14:32:15,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 792 transitions, 5184 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:32:15,935 INFO L231 Difference]: Finished difference. Result has 652 places, 724 transitions, 4266 flow [2024-11-10 14:32:15,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=2274, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4266, PETRI_PLACES=652, PETRI_TRANSITIONS=724} [2024-11-10 14:32:15,938 INFO L277 CegarLoopForPetriNet]: 433 programPoint places, 219 predicate places. [2024-11-10 14:32:15,938 INFO L471 AbstractCegarLoop]: Abstraction has has 652 places, 724 transitions, 4266 flow [2024-11-10 14:32:15,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 422.14285714285717) internal successors, (26595), 63 states have internal predecessors, (26595), 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) [2024-11-10 14:32:15,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:32:15,944 INFO L204 CegarLoopForPetriNet]: trace histogram [62, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:32:15,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 14:32:16,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:32:16,145 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr3ASSERT_VIOLATIONDATA_RACE === [fErr3ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr0ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:32:16,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:32:16,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1110422406, now seen corresponding path program 1 times [2024-11-10 14:32:16,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:32:16,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864678139] [2024-11-10 14:32:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:16,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:32:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:32:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 161345 backedges. 0 proven. 82055 refuted. 0 times theorem prover too weak. 79290 trivial. 0 not checked. [2024-11-10 14:32:28,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:32:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864678139] [2024-11-10 14:32:28,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864678139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:32:28,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125763075] [2024-11-10 14:32:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:32:28,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:32:28,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:32:28,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:32:28,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process