./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:10:37,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:10:37,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:10:37,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:10:37,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:10:37,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:10:37,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:10:37,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:10:37,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:10:37,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:10:37,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:10:37,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:10:37,354 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:10:37,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:10:37,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:10:37,356 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:10:37,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:10:37,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:10:37,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:10:37,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:10:37,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:10:37,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:10:37,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:10:37,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:10:37,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:10:37,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:10:37,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:10:37,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:10:37,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:10:37,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:10:37,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-10-14 17:10:37,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:10:37,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:10:37,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:10:37,583 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:10:37,586 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:10:37,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-14 17:10:39,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:10:39,264 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:10:39,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-14 17:10:39,288 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1282a4e61/5a55720a61c04988b62a0869fc74429f/FLAG83ab7537a [2024-10-14 17:10:39,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1282a4e61/5a55720a61c04988b62a0869fc74429f [2024-10-14 17:10:39,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:10:39,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:10:39,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:10:39,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:10:39,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:10:39,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333063d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39, skipping insertion in model container [2024-10-14 17:10:39,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:10:39,753 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,754 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,756 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,757 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:10:39,811 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:10:39,849 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,850 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,851 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,851 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-14 17:10:39,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:10:39,909 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:10:39,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39 WrapperNode [2024-10-14 17:10:39,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:10:39,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:10:39,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:10:39,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:10:39,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,979 INFO L138 Inliner]: procedures = 278, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 315 [2024-10-14 17:10:39,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:10:39,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:10:39,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:10:39,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:10:39,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:39,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:10:40,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:10:40,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:10:40,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:10:40,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (1/1) ... [2024-10-14 17:10:40,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:10:40,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:40,084 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) [2024-10-14 17:10:40,091 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 [2024-10-14 17:10:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:10:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-14 17:10:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:10:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-14 17:10:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:10:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:10:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:10:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:10:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:10:40,142 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:10:40,264 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:10:40,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:10:40,802 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:10:40,802 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:10:40,850 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:10:40,851 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 17:10:40,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:10:40 BoogieIcfgContainer [2024-10-14 17:10:40,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:10:40,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:10:40,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:10:40,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:10:40,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:10:39" (1/3) ... [2024-10-14 17:10:40,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a677d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:10:40, skipping insertion in model container [2024-10-14 17:10:40,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:10:39" (2/3) ... [2024-10-14 17:10:40,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a677d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:10:40, skipping insertion in model container [2024-10-14 17:10:40,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:10:40" (3/3) ... [2024-10-14 17:10:40,865 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-10-14 17:10:40,878 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:10:40,878 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-10-14 17:10:40,878 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:10:40,946 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:10:40,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 340 transitions, 687 flow [2024-10-14 17:10:41,090 INFO L124 PetriNetUnfolderBase]: 27/372 cut-off events. [2024-10-14 17:10:41,090 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:10:41,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 372 events. 27/372 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 956 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 187. Up to 4 conditions per place. [2024-10-14 17:10:41,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 318 places, 340 transitions, 687 flow [2024-10-14 17:10:41,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 340 transitions, 687 flow [2024-10-14 17:10:41,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:10:41,120 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;@12814c5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:10:41,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-10-14 17:10:41,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:10:41,132 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2024-10-14 17:10:41,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:10:41,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:41,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:41,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:41,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1046704025, now seen corresponding path program 1 times [2024-10-14 17:10:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903383086] [2024-10-14 17:10:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:41,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:41,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:41,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903383086] [2024-10-14 17:10:41,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903383086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:41,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:41,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:41,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562323140] [2024-10-14 17:10:41,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:41,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:41,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:42,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 340 [2024-10-14 17:10:42,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 340 transitions, 687 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-10-14 17:10:42,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:42,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 340 [2024-10-14 17:10:42,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:42,738 INFO L124 PetriNetUnfolderBase]: 319/1534 cut-off events. [2024-10-14 17:10:42,738 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-14 17:10:42,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2224 conditions, 1534 events. 319/1534 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10078 event pairs, 288 based on Foata normal form. 182/1586 useless extension candidates. Maximal degree in co-relation 1972. Up to 674 conditions per place. [2024-10-14 17:10:42,756 INFO L140 encePairwiseOnDemand]: 309/340 looper letters, 80 selfloop transitions, 10 changer transitions 0/317 dead transitions. [2024-10-14 17:10:42,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 317 transitions, 821 flow [2024-10-14 17:10:42,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1479 transitions. [2024-10-14 17:10:42,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-10-14 17:10:42,790 INFO L175 Difference]: Start difference. First operand has 318 places, 340 transitions, 687 flow. Second operand 6 states and 1479 transitions. [2024-10-14 17:10:42,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 317 transitions, 821 flow [2024-10-14 17:10:42,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 317 transitions, 821 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:10:42,806 INFO L231 Difference]: Finished difference. Result has 319 places, 317 transitions, 661 flow [2024-10-14 17:10:42,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=661, PETRI_PLACES=319, PETRI_TRANSITIONS=317} [2024-10-14 17:10:42,817 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 1 predicate places. [2024-10-14 17:10:42,818 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 317 transitions, 661 flow [2024-10-14 17:10:42,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-10-14 17:10:42,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:42,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:42,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:10:42,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:42,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash 533804622, now seen corresponding path program 1 times [2024-10-14 17:10:42,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:42,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206467457] [2024-10-14 17:10:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:42,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:42,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206467457] [2024-10-14 17:10:42,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206467457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:42,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:42,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:10:42,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088010382] [2024-10-14 17:10:42,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:42,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:10:42,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:10:42,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:10:42,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 340 [2024-10-14 17:10:42,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 317 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:42,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:42,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 340 [2024-10-14 17:10:42,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:43,039 INFO L124 PetriNetUnfolderBase]: 15/497 cut-off events. [2024-10-14 17:10:43,043 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-14 17:10:43,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 497 events. 15/497 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1670 event pairs, 8 based on Foata normal form. 1/454 useless extension candidates. Maximal degree in co-relation 334. Up to 34 conditions per place. [2024-10-14 17:10:43,045 INFO L140 encePairwiseOnDemand]: 337/340 looper letters, 15 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2024-10-14 17:10:43,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 318 transitions, 697 flow [2024-10-14 17:10:43,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:10:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:10:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-10-14 17:10:43,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2024-10-14 17:10:43,051 INFO L175 Difference]: Start difference. First operand has 319 places, 317 transitions, 661 flow. Second operand 3 states and 930 transitions. [2024-10-14 17:10:43,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 318 transitions, 697 flow [2024-10-14 17:10:43,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 318 transitions, 677 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:43,062 INFO L231 Difference]: Finished difference. Result has 317 places, 318 transitions, 653 flow [2024-10-14 17:10:43,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=317, PETRI_TRANSITIONS=318} [2024-10-14 17:10:43,064 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -1 predicate places. [2024-10-14 17:10:43,067 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 318 transitions, 653 flow [2024-10-14 17:10:43,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:43,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:43,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:43,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:10:43,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:43,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1393514690, now seen corresponding path program 1 times [2024-10-14 17:10:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:43,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070425928] [2024-10-14 17:10:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:43,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:43,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070425928] [2024-10-14 17:10:43,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070425928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:43,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:43,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:43,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275758850] [2024-10-14 17:10:43,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:43,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:43,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 340 [2024-10-14 17:10:43,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 318 transitions, 653 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-10-14 17:10:43,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:43,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 340 [2024-10-14 17:10:43,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:44,066 INFO L124 PetriNetUnfolderBase]: 320/1656 cut-off events. [2024-10-14 17:10:44,066 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-10-14 17:10:44,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2397 conditions, 1656 events. 320/1656 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10837 event pairs, 288 based on Foata normal form. 0/1522 useless extension candidates. Maximal degree in co-relation 2201. Up to 708 conditions per place. [2024-10-14 17:10:44,074 INFO L140 encePairwiseOnDemand]: 328/340 looper letters, 80 selfloop transitions, 10 changer transitions 0/316 dead transitions. [2024-10-14 17:10:44,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 316 transitions, 829 flow [2024-10-14 17:10:44,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1460 transitions. [2024-10-14 17:10:44,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-10-14 17:10:44,078 INFO L175 Difference]: Start difference. First operand has 317 places, 318 transitions, 653 flow. Second operand 6 states and 1460 transitions. [2024-10-14 17:10:44,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 316 transitions, 829 flow [2024-10-14 17:10:44,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 316 transitions, 827 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:44,084 INFO L231 Difference]: Finished difference. Result has 319 places, 316 transitions, 667 flow [2024-10-14 17:10:44,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=667, PETRI_PLACES=319, PETRI_TRANSITIONS=316} [2024-10-14 17:10:44,085 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 1 predicate places. [2024-10-14 17:10:44,087 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 316 transitions, 667 flow [2024-10-14 17:10:44,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-10-14 17:10:44,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:44,089 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] [2024-10-14 17:10:44,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:10:44,089 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:44,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 37529182, now seen corresponding path program 1 times [2024-10-14 17:10:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:44,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551843712] [2024-10-14 17:10:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:44,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:44,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551843712] [2024-10-14 17:10:44,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551843712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:44,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:44,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:44,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843111827] [2024-10-14 17:10:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:44,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:44,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:44,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 340 [2024-10-14 17:10:44,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 316 transitions, 667 flow. Second operand has 6 states, 6 states have (on average 229.66666666666666) internal successors, (1378), 6 states have internal predecessors, (1378), 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) [2024-10-14 17:10:44,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:44,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 340 [2024-10-14 17:10:44,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:44,866 INFO L124 PetriNetUnfolderBase]: 320/1654 cut-off events. [2024-10-14 17:10:44,866 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-14 17:10:44,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2418 conditions, 1654 events. 320/1654 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10826 event pairs, 288 based on Foata normal form. 0/1522 useless extension candidates. Maximal degree in co-relation 2101. Up to 722 conditions per place. [2024-10-14 17:10:44,872 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 87 selfloop transitions, 5 changer transitions 0/315 dead transitions. [2024-10-14 17:10:44,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 315 transitions, 849 flow [2024-10-14 17:10:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1455 transitions. [2024-10-14 17:10:44,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7132352941176471 [2024-10-14 17:10:44,876 INFO L175 Difference]: Start difference. First operand has 319 places, 316 transitions, 667 flow. Second operand 6 states and 1455 transitions. [2024-10-14 17:10:44,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 315 transitions, 849 flow [2024-10-14 17:10:44,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 315 transitions, 829 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:44,880 INFO L231 Difference]: Finished difference. Result has 318 places, 315 transitions, 655 flow [2024-10-14 17:10:44,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=318, PETRI_TRANSITIONS=315} [2024-10-14 17:10:44,881 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-10-14 17:10:44,881 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 315 transitions, 655 flow [2024-10-14 17:10:44,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.66666666666666) internal successors, (1378), 6 states have internal predecessors, (1378), 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) [2024-10-14 17:10:44,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:44,882 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] [2024-10-14 17:10:44,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:10:44,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:44,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:44,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1074277269, now seen corresponding path program 1 times [2024-10-14 17:10:44,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:44,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51866920] [2024-10-14 17:10:44,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:44,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:44,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:44,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51866920] [2024-10-14 17:10:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51866920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:44,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:44,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:10:44,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409189326] [2024-10-14 17:10:44,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:44,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:10:44,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:44,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:10:44,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:10:44,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 340 [2024-10-14 17:10:44,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 315 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:44,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:44,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 340 [2024-10-14 17:10:44,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:44,993 INFO L124 PetriNetUnfolderBase]: 15/679 cut-off events. [2024-10-14 17:10:44,994 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-14 17:10:44,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 679 events. 15/679 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1618 event pairs, 8 based on Foata normal form. 2/635 useless extension candidates. Maximal degree in co-relation 525. Up to 38 conditions per place. [2024-10-14 17:10:44,996 INFO L140 encePairwiseOnDemand]: 337/340 looper letters, 15 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2024-10-14 17:10:44,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 316 transitions, 691 flow [2024-10-14 17:10:44,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:10:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:10:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-10-14 17:10:44,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2024-10-14 17:10:44,998 INFO L175 Difference]: Start difference. First operand has 318 places, 315 transitions, 655 flow. Second operand 3 states and 930 transitions. [2024-10-14 17:10:44,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 316 transitions, 691 flow [2024-10-14 17:10:45,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 316 transitions, 681 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:45,002 INFO L231 Difference]: Finished difference. Result has 316 places, 316 transitions, 657 flow [2024-10-14 17:10:45,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=316, PETRI_TRANSITIONS=316} [2024-10-14 17:10:45,003 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -2 predicate places. [2024-10-14 17:10:45,003 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 316 transitions, 657 flow [2024-10-14 17:10:45,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:45,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:45,004 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] [2024-10-14 17:10:45,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:10:45,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:45,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:45,005 INFO L85 PathProgramCache]: Analyzing trace with hash 529499373, now seen corresponding path program 1 times [2024-10-14 17:10:45,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:45,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936535453] [2024-10-14 17:10:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:45,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:45,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:45,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936535453] [2024-10-14 17:10:45,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936535453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:45,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:45,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:45,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336725580] [2024-10-14 17:10:45,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:45,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:45,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:45,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:45,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 340 [2024-10-14 17:10:45,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 316 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 256.5) internal successors, (1539), 6 states have internal predecessors, (1539), 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) [2024-10-14 17:10:45,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:45,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 340 [2024-10-14 17:10:45,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:45,859 INFO L124 PetriNetUnfolderBase]: 83/993 cut-off events. [2024-10-14 17:10:45,859 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-10-14 17:10:45,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 993 events. 83/993 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3666 event pairs, 64 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 882. Up to 311 conditions per place. [2024-10-14 17:10:45,862 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 62 selfloop transitions, 5 changer transitions 0/315 dead transitions. [2024-10-14 17:10:45,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 315 transitions, 789 flow [2024-10-14 17:10:45,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1580 transitions. [2024-10-14 17:10:45,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7745098039215687 [2024-10-14 17:10:45,865 INFO L175 Difference]: Start difference. First operand has 316 places, 316 transitions, 657 flow. Second operand 6 states and 1580 transitions. [2024-10-14 17:10:45,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 315 transitions, 789 flow [2024-10-14 17:10:45,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 315 transitions, 787 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:45,871 INFO L231 Difference]: Finished difference. Result has 319 places, 315 transitions, 663 flow [2024-10-14 17:10:45,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=663, PETRI_PLACES=319, PETRI_TRANSITIONS=315} [2024-10-14 17:10:45,873 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 1 predicate places. [2024-10-14 17:10:45,874 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 315 transitions, 663 flow [2024-10-14 17:10:45,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 256.5) internal successors, (1539), 6 states have internal predecessors, (1539), 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) [2024-10-14 17:10:45,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:45,875 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] [2024-10-14 17:10:45,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:10:45,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:45,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash -286938861, now seen corresponding path program 1 times [2024-10-14 17:10:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:45,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939254395] [2024-10-14 17:10:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:45,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:46,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939254395] [2024-10-14 17:10:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939254395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:46,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:46,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377771001] [2024-10-14 17:10:46,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:46,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:46,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:46,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:46,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 340 [2024-10-14 17:10:46,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 315 transitions, 663 flow. Second operand has 6 states, 6 states have (on average 232.33333333333334) internal successors, (1394), 6 states have internal predecessors, (1394), 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) [2024-10-14 17:10:46,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:46,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 340 [2024-10-14 17:10:46,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:46,799 INFO L124 PetriNetUnfolderBase]: 320/1834 cut-off events. [2024-10-14 17:10:46,800 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-14 17:10:46,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2683 conditions, 1834 events. 320/1834 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10752 event pairs, 288 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2245. Up to 788 conditions per place. [2024-10-14 17:10:46,806 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 87 selfloop transitions, 5 changer transitions 0/314 dead transitions. [2024-10-14 17:10:46,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 314 transitions, 845 flow [2024-10-14 17:10:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1455 transitions. [2024-10-14 17:10:46,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7132352941176471 [2024-10-14 17:10:46,809 INFO L175 Difference]: Start difference. First operand has 319 places, 315 transitions, 663 flow. Second operand 6 states and 1455 transitions. [2024-10-14 17:10:46,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 314 transitions, 845 flow [2024-10-14 17:10:46,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 314 transitions, 835 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:46,816 INFO L231 Difference]: Finished difference. Result has 318 places, 314 transitions, 661 flow [2024-10-14 17:10:46,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=661, PETRI_PLACES=318, PETRI_TRANSITIONS=314} [2024-10-14 17:10:46,817 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-10-14 17:10:46,817 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 314 transitions, 661 flow [2024-10-14 17:10:46,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.33333333333334) internal successors, (1394), 6 states have internal predecessors, (1394), 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) [2024-10-14 17:10:46,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:46,818 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] [2024-10-14 17:10:46,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:10:46,818 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:46,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1564661826, now seen corresponding path program 1 times [2024-10-14 17:10:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335138962] [2024-10-14 17:10:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:47,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335138962] [2024-10-14 17:10:47,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335138962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:47,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:47,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:47,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167015408] [2024-10-14 17:10:47,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:47,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:47,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:47,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:47,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 340 [2024-10-14 17:10:47,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 314 transitions, 661 flow. Second operand has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2024-10-14 17:10:47,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:47,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 340 [2024-10-14 17:10:47,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:47,562 INFO L124 PetriNetUnfolderBase]: 320/1830 cut-off events. [2024-10-14 17:10:47,563 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-14 17:10:47,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 1830 events. 320/1830 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10697 event pairs, 288 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2261. Up to 772 conditions per place. [2024-10-14 17:10:47,568 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 83 selfloop transitions, 5 changer transitions 0/313 dead transitions. [2024-10-14 17:10:47,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 313 transitions, 835 flow [2024-10-14 17:10:47,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1475 transitions. [2024-10-14 17:10:47,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7230392156862745 [2024-10-14 17:10:47,571 INFO L175 Difference]: Start difference. First operand has 318 places, 314 transitions, 661 flow. Second operand 6 states and 1475 transitions. [2024-10-14 17:10:47,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 313 transitions, 835 flow [2024-10-14 17:10:47,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 313 transitions, 825 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:47,575 INFO L231 Difference]: Finished difference. Result has 317 places, 313 transitions, 659 flow [2024-10-14 17:10:47,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=317, PETRI_TRANSITIONS=313} [2024-10-14 17:10:47,576 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -1 predicate places. [2024-10-14 17:10:47,576 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 313 transitions, 659 flow [2024-10-14 17:10:47,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2024-10-14 17:10:47,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:47,578 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] [2024-10-14 17:10:47,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:10:47,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:47,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2005201315, now seen corresponding path program 1 times [2024-10-14 17:10:47,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:47,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473821757] [2024-10-14 17:10:47,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:47,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:47,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:47,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473821757] [2024-10-14 17:10:47,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473821757] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:47,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:47,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:47,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358612357] [2024-10-14 17:10:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:47,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:47,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:47,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:48,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 340 [2024-10-14 17:10:48,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 313 transitions, 659 flow. Second operand has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2024-10-14 17:10:48,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:48,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 340 [2024-10-14 17:10:48,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:48,421 INFO L124 PetriNetUnfolderBase]: 320/1826 cut-off events. [2024-10-14 17:10:48,422 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-14 17:10:48,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 1826 events. 320/1826 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10698 event pairs, 288 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2276. Up to 772 conditions per place. [2024-10-14 17:10:48,428 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 83 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2024-10-14 17:10:48,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 312 transitions, 833 flow [2024-10-14 17:10:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1475 transitions. [2024-10-14 17:10:48,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7230392156862745 [2024-10-14 17:10:48,431 INFO L175 Difference]: Start difference. First operand has 317 places, 313 transitions, 659 flow. Second operand 6 states and 1475 transitions. [2024-10-14 17:10:48,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 312 transitions, 833 flow [2024-10-14 17:10:48,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 312 transitions, 823 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:48,435 INFO L231 Difference]: Finished difference. Result has 316 places, 312 transitions, 657 flow [2024-10-14 17:10:48,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=316, PETRI_TRANSITIONS=312} [2024-10-14 17:10:48,436 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -2 predicate places. [2024-10-14 17:10:48,436 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 312 transitions, 657 flow [2024-10-14 17:10:48,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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) [2024-10-14 17:10:48,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:48,437 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] [2024-10-14 17:10:48,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:10:48,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:48,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:48,438 INFO L85 PathProgramCache]: Analyzing trace with hash 42858567, now seen corresponding path program 1 times [2024-10-14 17:10:48,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:48,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15842480] [2024-10-14 17:10:48,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:48,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15842480] [2024-10-14 17:10:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15842480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:10:48,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:10:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070143396] [2024-10-14 17:10:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:48,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:48,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:49,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 340 [2024-10-14 17:10:49,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 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) [2024-10-14 17:10:49,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:49,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 340 [2024-10-14 17:10:49,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:49,327 INFO L124 PetriNetUnfolderBase]: 320/1822 cut-off events. [2024-10-14 17:10:49,328 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-14 17:10:49,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1822 events. 320/1822 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10732 event pairs, 288 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2289. Up to 792 conditions per place. [2024-10-14 17:10:49,334 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 88 selfloop transitions, 5 changer transitions 0/311 dead transitions. [2024-10-14 17:10:49,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 311 transitions, 841 flow [2024-10-14 17:10:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:10:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:10:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1450 transitions. [2024-10-14 17:10:49,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2024-10-14 17:10:49,338 INFO L175 Difference]: Start difference. First operand has 316 places, 312 transitions, 657 flow. Second operand 6 states and 1450 transitions. [2024-10-14 17:10:49,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 311 transitions, 841 flow [2024-10-14 17:10:49,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 311 transitions, 831 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:49,343 INFO L231 Difference]: Finished difference. Result has 315 places, 311 transitions, 655 flow [2024-10-14 17:10:49,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=315, PETRI_TRANSITIONS=311} [2024-10-14 17:10:49,345 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -3 predicate places. [2024-10-14 17:10:49,345 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 311 transitions, 655 flow [2024-10-14 17:10:49,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 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) [2024-10-14 17:10:49,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:49,346 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] [2024-10-14 17:10:49,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:10:49,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:49,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1553123684, now seen corresponding path program 1 times [2024-10-14 17:10:49,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79634185] [2024-10-14 17:10:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:49,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:49,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79634185] [2024-10-14 17:10:49,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79634185] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:49,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800554741] [2024-10-14 17:10:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:49,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:49,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:49,466 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) [2024-10-14 17:10:49,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:10:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:49,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:10:49,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:49,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:10:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:10:49,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800554741] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:10:49,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:10:49,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:10:49,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476781509] [2024-10-14 17:10:49,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:10:49,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:10:49,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:49,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:10:49,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:10:49,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 340 [2024-10-14 17:10:49,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 311 transitions, 655 flow. Second operand has 10 states, 10 states have (on average 302.8) internal successors, (3028), 10 states have internal predecessors, (3028), 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) [2024-10-14 17:10:49,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:49,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 340 [2024-10-14 17:10:49,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:50,037 INFO L124 PetriNetUnfolderBase]: 15/843 cut-off events. [2024-10-14 17:10:50,037 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-14 17:10:50,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 843 events. 15/843 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1052 event pairs, 8 based on Foata normal form. 4/821 useless extension candidates. Maximal degree in co-relation 731. Up to 38 conditions per place. [2024-10-14 17:10:50,039 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 19 selfloop transitions, 9 changer transitions 0/319 dead transitions. [2024-10-14 17:10:50,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 319 transitions, 729 flow [2024-10-14 17:10:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:10:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:10:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2739 transitions. [2024-10-14 17:10:50,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8950980392156863 [2024-10-14 17:10:50,043 INFO L175 Difference]: Start difference. First operand has 315 places, 311 transitions, 655 flow. Second operand 9 states and 2739 transitions. [2024-10-14 17:10:50,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 319 transitions, 729 flow [2024-10-14 17:10:50,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 719 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:10:50,047 INFO L231 Difference]: Finished difference. Result has 321 places, 317 transitions, 695 flow [2024-10-14 17:10:50,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=695, PETRI_PLACES=321, PETRI_TRANSITIONS=317} [2024-10-14 17:10:50,048 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 3 predicate places. [2024-10-14 17:10:50,048 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 317 transitions, 695 flow [2024-10-14 17:10:50,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 302.8) internal successors, (3028), 10 states have internal predecessors, (3028), 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) [2024-10-14 17:10:50,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:50,050 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:50,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 17:10:50,254 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 [2024-10-14 17:10:50,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:50,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2010027821, now seen corresponding path program 1 times [2024-10-14 17:10:50,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:50,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69876038] [2024-10-14 17:10:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-14 17:10:50,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:50,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69876038] [2024-10-14 17:10:50,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69876038] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:50,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012173581] [2024-10-14 17:10:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:50,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:50,533 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) [2024-10-14 17:10:50,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:10:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:50,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 1298 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 17:10:50,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-14 17:10:50,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:10:50,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012173581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:50,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:10:50,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-14 17:10:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432889781] [2024-10-14 17:10:50,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:50,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:10:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:50,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:10:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:10:50,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 340 [2024-10-14 17:10:50,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 317 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:50,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:50,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 340 [2024-10-14 17:10:50,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:50,997 INFO L124 PetriNetUnfolderBase]: 45/1117 cut-off events. [2024-10-14 17:10:50,997 INFO L125 PetriNetUnfolderBase]: For 17/21 co-relation queries the response was YES. [2024-10-14 17:10:50,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 1117 events. 45/1117 cut-off events. For 17/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2862 event pairs, 24 based on Foata normal form. 2/1050 useless extension candidates. Maximal degree in co-relation 809. Up to 77 conditions per place. [2024-10-14 17:10:51,000 INFO L140 encePairwiseOnDemand]: 337/340 looper letters, 22 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2024-10-14 17:10:51,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 325 transitions, 759 flow [2024-10-14 17:10:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:10:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:10:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-10-14 17:10:51,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9186274509803921 [2024-10-14 17:10:51,003 INFO L175 Difference]: Start difference. First operand has 321 places, 317 transitions, 695 flow. Second operand 3 states and 937 transitions. [2024-10-14 17:10:51,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 325 transitions, 759 flow [2024-10-14 17:10:51,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 325 transitions, 753 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:51,007 INFO L231 Difference]: Finished difference. Result has 323 places, 317 transitions, 697 flow [2024-10-14 17:10:51,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=323, PETRI_TRANSITIONS=317} [2024-10-14 17:10:51,009 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 5 predicate places. [2024-10-14 17:10:51,009 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 317 transitions, 697 flow [2024-10-14 17:10:51,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 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) [2024-10-14 17:10:51,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:51,010 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:51,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:10:51,210 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 [2024-10-14 17:10:51,211 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:51,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 363398740, now seen corresponding path program 2 times [2024-10-14 17:10:51,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:51,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482146200] [2024-10-14 17:10:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:51,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-14 17:10:51,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:51,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482146200] [2024-10-14 17:10:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482146200] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447157006] [2024-10-14 17:10:51,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:10:51,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:51,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:51,475 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) [2024-10-14 17:10:51,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:10:51,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:10:51,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:10:51,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 17:10:51,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:51,757 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 11 treesize of output 7 [2024-10-14 17:10:51,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:10:51,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:51,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:10:51,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:51,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:10:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-14 17:10:51,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:10:51,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447157006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:51,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:10:51,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-10-14 17:10:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911377362] [2024-10-14 17:10:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:51,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:10:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:10:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 17:10:52,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 340 [2024-10-14 17:10:52,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 317 transitions, 697 flow. Second operand has 8 states, 8 states have (on average 229.125) internal successors, (1833), 8 states have internal predecessors, (1833), 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) [2024-10-14 17:10:52,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:52,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 340 [2024-10-14 17:10:52,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:52,800 INFO L124 PetriNetUnfolderBase]: 628/3123 cut-off events. [2024-10-14 17:10:52,801 INFO L125 PetriNetUnfolderBase]: For 90/106 co-relation queries the response was YES. [2024-10-14 17:10:52,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 3123 events. 628/3123 cut-off events. For 90/106 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19812 event pairs, 468 based on Foata normal form. 2/2890 useless extension candidates. Maximal degree in co-relation 4154. Up to 1044 conditions per place. [2024-10-14 17:10:52,810 INFO L140 encePairwiseOnDemand]: 330/340 looper letters, 168 selfloop transitions, 10 changer transitions 0/398 dead transitions. [2024-10-14 17:10:52,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 398 transitions, 1218 flow [2024-10-14 17:10:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:10:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:10:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1963 transitions. [2024-10-14 17:10:52,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7216911764705882 [2024-10-14 17:10:52,814 INFO L175 Difference]: Start difference. First operand has 323 places, 317 transitions, 697 flow. Second operand 8 states and 1963 transitions. [2024-10-14 17:10:52,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 398 transitions, 1218 flow [2024-10-14 17:10:52,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 398 transitions, 1212 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:10:52,818 INFO L231 Difference]: Finished difference. Result has 333 places, 323 transitions, 751 flow [2024-10-14 17:10:52,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=751, PETRI_PLACES=333, PETRI_TRANSITIONS=323} [2024-10-14 17:10:52,820 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 15 predicate places. [2024-10-14 17:10:52,820 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 323 transitions, 751 flow [2024-10-14 17:10:52,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 229.125) internal successors, (1833), 8 states have internal predecessors, (1833), 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) [2024-10-14 17:10:52,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:52,821 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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] [2024-10-14 17:10:52,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:10:53,022 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 [2024-10-14 17:10:53,023 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:53,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:53,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1673117149, now seen corresponding path program 1 times [2024-10-14 17:10:53,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:53,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167764793] [2024-10-14 17:10:53,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:53,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-10-14 17:10:53,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:53,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167764793] [2024-10-14 17:10:53,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167764793] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:53,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983108799] [2024-10-14 17:10:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:53,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:53,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:53,343 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) [2024-10-14 17:10:53,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:10:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:53,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:10:53,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:54,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:10:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:54,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983108799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:10:54,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:10:54,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-14 17:10:54,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189477206] [2024-10-14 17:10:54,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:10:54,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 17:10:54,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:54,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 17:10:54,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-14 17:10:54,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 340 [2024-10-14 17:10:54,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 323 transitions, 751 flow. Second operand has 19 states, 19 states have (on average 297.57894736842104) internal successors, (5654), 19 states have internal predecessors, (5654), 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) [2024-10-14 17:10:54,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:54,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 340 [2024-10-14 17:10:54,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:55,687 INFO L124 PetriNetUnfolderBase]: 24/2347 cut-off events. [2024-10-14 17:10:55,687 INFO L125 PetriNetUnfolderBase]: For 85/87 co-relation queries the response was YES. [2024-10-14 17:10:55,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 2347 events. 24/2347 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1852 event pairs, 9 based on Foata normal form. 13/2323 useless extension candidates. Maximal degree in co-relation 2274. Up to 52 conditions per place. [2024-10-14 17:10:55,692 INFO L140 encePairwiseOnDemand]: 329/340 looper letters, 51 selfloop transitions, 68 changer transitions 0/409 dead transitions. [2024-10-14 17:10:55,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 409 transitions, 1399 flow [2024-10-14 17:10:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-14 17:10:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-14 17:10:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 18717 transitions. [2024-10-14 17:10:55,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8738095238095238 [2024-10-14 17:10:55,711 INFO L175 Difference]: Start difference. First operand has 333 places, 323 transitions, 751 flow. Second operand 63 states and 18717 transitions. [2024-10-14 17:10:55,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 409 transitions, 1399 flow [2024-10-14 17:10:55,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 409 transitions, 1392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:10:55,716 INFO L231 Difference]: Finished difference. Result has 409 places, 385 transitions, 1264 flow [2024-10-14 17:10:55,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1264, PETRI_PLACES=409, PETRI_TRANSITIONS=385} [2024-10-14 17:10:55,717 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 91 predicate places. [2024-10-14 17:10:55,717 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 385 transitions, 1264 flow [2024-10-14 17:10:55,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 297.57894736842104) internal successors, (5654), 19 states have internal predecessors, (5654), 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) [2024-10-14 17:10:55,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:55,719 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-14 17:10:55,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:10:55,923 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 [2024-10-14 17:10:55,924 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:10:55,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1703762583, now seen corresponding path program 2 times [2024-10-14 17:10:55,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:55,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541338349] [2024-10-14 17:10:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:55,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 8259 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2024-10-14 17:10:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541338349] [2024-10-14 17:10:58,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541338349] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16671262] [2024-10-14 17:10:58,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:10:58,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:58,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:58,283 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) [2024-10-14 17:10:58,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:10:58,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:10:58,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:10:58,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 17:10:58,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:58,940 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 [2024-10-14 17:10:58,954 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 [2024-10-14 17:10:58,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:58,975 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 [2024-10-14 17:10:59,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:59,002 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 [2024-10-14 17:10:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8259 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8255 trivial. 0 not checked. [2024-10-14 17:10:59,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:10:59,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16671262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:59,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:10:59,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:10:59,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640256353] [2024-10-14 17:10:59,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:59,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:59,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:59,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:10:59,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 340 [2024-10-14 17:10:59,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 385 transitions, 1264 flow. Second operand has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 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) [2024-10-14 17:10:59,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:59,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 340 [2024-10-14 17:10:59,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:01,572 INFO L124 PetriNetUnfolderBase]: 735/4721 cut-off events. [2024-10-14 17:11:01,572 INFO L125 PetriNetUnfolderBase]: For 680/698 co-relation queries the response was YES. [2024-10-14 17:11:01,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7658 conditions, 4721 events. 735/4721 cut-off events. For 680/698 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 21922 event pairs, 290 based on Foata normal form. 43/4557 useless extension candidates. Maximal degree in co-relation 5611. Up to 1913 conditions per place. [2024-10-14 17:11:01,668 INFO L140 encePairwiseOnDemand]: 305/340 looper letters, 127 selfloop transitions, 123 changer transitions 0/533 dead transitions. [2024-10-14 17:11:01,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 533 transitions, 2074 flow [2024-10-14 17:11:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:11:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:11:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1590 transitions. [2024-10-14 17:11:01,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794117647058824 [2024-10-14 17:11:01,670 INFO L175 Difference]: Start difference. First operand has 409 places, 385 transitions, 1264 flow. Second operand 6 states and 1590 transitions. [2024-10-14 17:11:01,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 533 transitions, 2074 flow [2024-10-14 17:11:01,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 533 transitions, 1998 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-14 17:11:01,683 INFO L231 Difference]: Finished difference. Result has 412 places, 501 transitions, 1992 flow [2024-10-14 17:11:01,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1992, PETRI_PLACES=412, PETRI_TRANSITIONS=501} [2024-10-14 17:11:01,683 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 94 predicate places. [2024-10-14 17:11:01,683 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 501 transitions, 1992 flow [2024-10-14 17:11:01,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 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) [2024-10-14 17:11:01,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:01,685 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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] [2024-10-14 17:11:01,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 17:11:01,888 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 [2024-10-14 17:11:01,890 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:11:01,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash -669663978, now seen corresponding path program 1 times [2024-10-14 17:11:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:01,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062785817] [2024-10-14 17:11:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8250 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-14 17:11:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062785817] [2024-10-14 17:11:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062785817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:11:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55562094] [2024-10-14 17:11:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:03,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:11:03,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:11:03,204 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) [2024-10-14 17:11:03,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:11:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:04,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 5500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 17:11:04,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:11:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8250 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2024-10-14 17:11:05,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:11:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 8250 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2024-10-14 17:11:05,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55562094] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:11:05,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:11:05,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2024-10-14 17:11:05,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134715127] [2024-10-14 17:11:05,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:11:05,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-14 17:11:05,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:05,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-14 17:11:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 17:11:06,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 340 [2024-10-14 17:11:06,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 501 transitions, 1992 flow. Second operand has 35 states, 35 states have (on average 297.51428571428573) internal successors, (10413), 35 states have internal predecessors, (10413), 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) [2024-10-14 17:11:06,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:06,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 340 [2024-10-14 17:11:06,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:09,337 INFO L124 PetriNetUnfolderBase]: 304/5683 cut-off events. [2024-10-14 17:11:09,337 INFO L125 PetriNetUnfolderBase]: For 3713/3714 co-relation queries the response was YES. [2024-10-14 17:11:09,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7895 conditions, 5683 events. 304/5683 cut-off events. For 3713/3714 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10709 event pairs, 0 based on Foata normal form. 34/5613 useless extension candidates. Maximal degree in co-relation 4927. Up to 370 conditions per place. [2024-10-14 17:11:09,350 INFO L140 encePairwiseOnDemand]: 329/340 looper letters, 73 selfloop transitions, 140 changer transitions 0/603 dead transitions. [2024-10-14 17:11:09,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 603 transitions, 3179 flow [2024-10-14 17:11:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-14 17:11:09,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-10-14 17:11:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 14566 transitions. [2024-10-14 17:11:09,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8743097238895559 [2024-10-14 17:11:09,366 INFO L175 Difference]: Start difference. First operand has 412 places, 501 transitions, 1992 flow. Second operand 49 states and 14566 transitions. [2024-10-14 17:11:09,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 603 transitions, 3179 flow [2024-10-14 17:11:09,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 603 transitions, 3164 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-14 17:11:09,384 INFO L231 Difference]: Finished difference. Result has 446 places, 553 transitions, 2811 flow [2024-10-14 17:11:09,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=2811, PETRI_PLACES=446, PETRI_TRANSITIONS=553} [2024-10-14 17:11:09,384 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 128 predicate places. [2024-10-14 17:11:09,385 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 553 transitions, 2811 flow [2024-10-14 17:11:09,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 297.51428571428573) internal successors, (10413), 35 states have internal predecessors, (10413), 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) [2024-10-14 17:11:09,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:09,389 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-14 17:11:09,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 17:11:09,589 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 [2024-10-14 17:11:09,590 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:11:09,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1862924334, now seen corresponding path program 1 times [2024-10-14 17:11:09,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:09,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986432160] [2024-10-14 17:11:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 39252 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9481 trivial. 0 not checked. [2024-10-14 17:11:18,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:18,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986432160] [2024-10-14 17:11:18,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986432160] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:11:18,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248520259] [2024-10-14 17:11:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:18,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:11:18,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:11:18,031 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) [2024-10-14 17:11:18,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:11:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:20,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 11407 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:11:20,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:11:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 39252 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9481 trivial. 0 not checked. [2024-10-14 17:11:21,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:11:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 39252 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9481 trivial. 0 not checked. [2024-10-14 17:11:23,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248520259] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:11:23,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:11:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-14 17:11:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297794300] [2024-10-14 17:11:23,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:11:23,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-14 17:11:23,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:23,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-14 17:11:23,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-14 17:11:23,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 340 [2024-10-14 17:11:23,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 553 transitions, 2811 flow. Second operand has 63 states, 63 states have (on average 303.1111111111111) internal successors, (19096), 63 states have internal predecessors, (19096), 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) [2024-10-14 17:11:23,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:23,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 340 [2024-10-14 17:11:23,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:11:32,390 INFO L124 PetriNetUnfolderBase]: 252/9447 cut-off events. [2024-10-14 17:11:32,390 INFO L125 PetriNetUnfolderBase]: For 13783/13838 co-relation queries the response was YES. [2024-10-14 17:11:32,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12474 conditions, 9447 events. 252/9447 cut-off events. For 13783/13838 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8691 event pairs, 0 based on Foata normal form. 45/9407 useless extension candidates. Maximal degree in co-relation 10142. Up to 346 conditions per place. [2024-10-14 17:11:32,423 INFO L140 encePairwiseOnDemand]: 334/340 looper letters, 94 selfloop transitions, 270 changer transitions 0/759 dead transitions. [2024-10-14 17:11:32,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 759 transitions, 5725 flow [2024-10-14 17:11:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-14 17:11:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-10-14 17:11:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 27239 transitions. [2024-10-14 17:11:32,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8901633986928105 [2024-10-14 17:11:32,473 INFO L175 Difference]: Start difference. First operand has 446 places, 553 transitions, 2811 flow. Second operand 90 states and 27239 transitions. [2024-10-14 17:11:32,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 759 transitions, 5725 flow [2024-10-14 17:11:32,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 759 transitions, 5609 flow, removed 0 selfloop flow, removed 21 redundant places. [2024-10-14 17:11:32,541 INFO L231 Difference]: Finished difference. Result has 530 places, 691 transitions, 4687 flow [2024-10-14 17:11:32,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=2695, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4687, PETRI_PLACES=530, PETRI_TRANSITIONS=691} [2024-10-14 17:11:32,542 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 212 predicate places. [2024-10-14 17:11:32,542 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 691 transitions, 4687 flow [2024-10-14 17:11:32,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 303.1111111111111) internal successors, (19096), 63 states have internal predecessors, (19096), 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) [2024-10-14 17:11:32,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:11:32,553 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-14 17:11:32,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 17:11:32,756 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 [2024-10-14 17:11:32,757 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-14 17:11:32,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:11:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash -971044178, now seen corresponding path program 2 times [2024-10-14 17:11:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:11:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452652764] [2024-10-14 17:11:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:11:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:11:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:11:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 159462 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78371 trivial. 0 not checked. [2024-10-14 17:11:44,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:11:44,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452652764] [2024-10-14 17:11:44,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452652764] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:11:44,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88517575] [2024-10-14 17:11:44,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:11:44,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:11:44,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:11:44,484 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) [2024-10-14 17:11:44,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:11:48,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:11:48,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:11:49,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 22447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 17:11:49,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:11:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 159462 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78371 trivial. 0 not checked. [2024-10-14 17:11:53,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:11:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 159462 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78371 trivial. 0 not checked. [2024-10-14 17:11:58,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88517575] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:11:58,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:11:58,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-10-14 17:11:58,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569580517] [2024-10-14 17:11:58,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:11:58,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 17:11:58,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:11:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 17:11:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-14 17:11:58,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 340 [2024-10-14 17:11:58,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 691 transitions, 4687 flow. Second operand has 14 states, 14 states have (on average 302.92857142857144) internal successors, (4241), 14 states have internal predecessors, (4241), 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) [2024-10-14 17:11:58,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:11:58,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 340 [2024-10-14 17:11:58,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand