./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:29:02,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:29:02,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:29:02,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:29:02,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:29:02,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:29:02,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:29:02,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:29:02,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:29:02,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:29:02,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:29:02,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:29:02,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:29:02,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:29:02,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:29:02,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:29:02,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:29:02,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:29:02,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:29:02,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:29:02,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:29:02,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:29:02,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:29:02,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:29:02,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:29:02,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:29:02,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:29:02,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:29:02,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:29:02,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:29:02,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:29:02,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:29:02,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:29:02,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:29:02,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:29:02,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:29:02,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:29:02,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:29:02,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:29:02,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:29:02,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:29:02,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:29:02,604 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:29:02,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:29:02,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:29:02,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:29:02,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:29:02,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:29:02,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:29:02,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:29:02,608 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:29:02,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:29:02,609 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:29:02,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:29:02,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:29:02,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:29:02,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:29:02,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:29:02,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:29:02,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:29:02,611 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:29:02,611 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:29:02,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:29:02,612 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:29:02,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:29:02,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:29:02,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:29:02,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:29:02,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:29:02,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:29:02,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:29:02,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:29:02,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:29:02,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:29:02,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:29:02,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:29:02,614 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:29:02,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:29:02,615 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:29:02,615 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:29:02,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:29:02,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:29:02,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:29:02,940 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:29:02,941 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:29:02,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-29 02:29:04,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:29:04,479 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:29:04,480 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-29 02:29:04,502 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e708296e0/2d1ccda010d74bca82899d48c1d20893/FLAGa75d56626 [2023-08-29 02:29:04,526 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e708296e0/2d1ccda010d74bca82899d48c1d20893 [2023-08-29 02:29:04,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:29:04,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:29:04,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:29:04,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:29:04,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:29:04,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:29:04" (1/1) ... [2023-08-29 02:29:04,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3301a92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:04, skipping insertion in model container [2023-08-29 02:29:04,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:29:04" (1/1) ... [2023-08-29 02:29:04,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:29:04,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:29:05,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:29:05,145 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:29:05,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:29:05,314 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:29:05,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05 WrapperNode [2023-08-29 02:29:05,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:29:05,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:29:05,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:29:05,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:29:05,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,386 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2023-08-29 02:29:05,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:29:05,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:29:05,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:29:05,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:29:05,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,449 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:29:05,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:29:05,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:29:05,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:29:05,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (1/1) ... [2023-08-29 02:29:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:29:05,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:29:05,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:29:05,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:29:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:29:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:29:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:29:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:29:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:29:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:29:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:29:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:29:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:29:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:29:05,549 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:29:05,702 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:29:05,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:29:06,243 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:29:06,251 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:29:06,251 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 02:29:06,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:29:06 BoogieIcfgContainer [2023-08-29 02:29:06,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:29:06,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:29:06,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:29:06,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:29:06,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:29:04" (1/3) ... [2023-08-29 02:29:06,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353c1272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:29:06, skipping insertion in model container [2023-08-29 02:29:06,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:29:05" (2/3) ... [2023-08-29 02:29:06,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353c1272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:29:06, skipping insertion in model container [2023-08-29 02:29:06,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:29:06" (3/3) ... [2023-08-29 02:29:06,260 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-08-29 02:29:06,267 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:29:06,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:29:06,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-29 02:29:06,276 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:29:06,360 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:29:06,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 262 transitions, 529 flow [2023-08-29 02:29:06,542 INFO L130 PetriNetUnfolder]: 2/261 cut-off events. [2023-08-29 02:29:06,543 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:29:06,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-29 02:29:06,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 262 transitions, 529 flow [2023-08-29 02:29:06,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 261 transitions, 525 flow [2023-08-29 02:29:06,563 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:29:06,580 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-29 02:29:06,584 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-29 02:29:06,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 261 transitions, 525 flow [2023-08-29 02:29:06,658 INFO L130 PetriNetUnfolder]: 2/261 cut-off events. [2023-08-29 02:29:06,658 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:29:06,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-29 02:29:06,671 INFO L119 LiptonReduction]: Number of co-enabled transitions 18144 [2023-08-29 02:29:21,914 WARN L222 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:29:30,516 WARN L222 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:29:42,435 WARN L222 SmtUtils]: Spent 9.45s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:29:48,897 WARN L222 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:29:58,716 WARN L222 SmtUtils]: Spent 9.82s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:30:04,979 WARN L222 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:30:10,266 WARN L222 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:30:19,919 INFO L134 LiptonReduction]: Checked pairs total: 144406 [2023-08-29 02:30:19,920 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-08-29 02:30:19,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:30:19,936 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@31ba0856, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:30:19,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-29 02:30:19,938 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:30:19,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:30:19,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:19,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:30:19,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:19,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash 796, now seen corresponding path program 1 times [2023-08-29 02:30:19,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:19,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107384806] [2023-08-29 02:30:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:19,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:20,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107384806] [2023-08-29 02:30:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107384806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:30:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497956355] [2023-08-29 02:30:20,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:20,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:30:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:20,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:30:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:30:20,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 410 [2023-08-29 02:30:20,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-08-29 02:30:20,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:20,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 410 [2023-08-29 02:30:20,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:20,430 INFO L130 PetriNetUnfolder]: 379/1728 cut-off events. [2023-08-29 02:30:20,430 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:30:20,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 1728 events. 379/1728 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11594 event pairs, 360 based on Foata normal form. 19/1664 useless extension candidates. Maximal degree in co-relation 2503. Up to 780 conditions per place. [2023-08-29 02:30:20,470 INFO L137 encePairwiseOnDemand]: 405/410 looper letters, 41 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2023-08-29 02:30:20,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 339 flow [2023-08-29 02:30:20,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:30:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:30:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2023-08-29 02:30:20,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902439024390243 [2023-08-29 02:30:20,492 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2023-08-29 02:30:20,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2023-08-29 02:30:20,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:20,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2023-08-29 02:30:20,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 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) [2023-08-29 02:30:20,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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) [2023-08-29 02:30:20,509 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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) [2023-08-29 02:30:20,511 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 267 flow. Second operand 2 states and 566 transitions. [2023-08-29 02:30:20,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 339 flow [2023-08-29 02:30:20,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:30:20,518 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 256 flow [2023-08-29 02:30:20,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-08-29 02:30:20,524 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2023-08-29 02:30:20,525 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 256 flow [2023-08-29 02:30:20,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-08-29 02:30:20,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:20,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:20,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:30:20,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:20,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1766698446, now seen corresponding path program 1 times [2023-08-29 02:30:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422514319] [2023-08-29 02:30:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:21,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:21,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422514319] [2023-08-29 02:30:21,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422514319] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:21,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:30:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695013054] [2023-08-29 02:30:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:21,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:30:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:30:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:30:21,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 410 [2023-08-29 02:30:21,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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) [2023-08-29 02:30:21,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:21,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 410 [2023-08-29 02:30:21,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:22,597 INFO L130 PetriNetUnfolder]: 2362/5504 cut-off events. [2023-08-29 02:30:22,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:30:22,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10287 conditions, 5504 events. 2362/5504 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 33673 event pairs, 1870 based on Foata normal form. 0/5334 useless extension candidates. Maximal degree in co-relation 10284. Up to 4491 conditions per place. [2023-08-29 02:30:22,622 INFO L137 encePairwiseOnDemand]: 368/410 looper letters, 167 selfloop transitions, 149 changer transitions 0/347 dead transitions. [2023-08-29 02:30:22,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 347 transitions, 1328 flow [2023-08-29 02:30:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:30:22,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:30:22,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-08-29 02:30:22,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630081300813008 [2023-08-29 02:30:22,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-08-29 02:30:22,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-08-29 02:30:22,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:22,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-08-29 02:30:22,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 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) [2023-08-29 02:30:22,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-29 02:30:22,638 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-29 02:30:22,638 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 256 flow. Second operand 6 states and 1385 transitions. [2023-08-29 02:30:22,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 347 transitions, 1328 flow [2023-08-29 02:30:22,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 347 transitions, 1328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:30:22,645 INFO L231 Difference]: Finished difference. Result has 139 places, 275 transitions, 1084 flow [2023-08-29 02:30:22,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1084, PETRI_PLACES=139, PETRI_TRANSITIONS=275} [2023-08-29 02:30:22,646 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-08-29 02:30:22,646 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 275 transitions, 1084 flow [2023-08-29 02:30:22,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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) [2023-08-29 02:30:22,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:22,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:22,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:30:22,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:22,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash 917157654, now seen corresponding path program 1 times [2023-08-29 02:30:22,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:22,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560156316] [2023-08-29 02:30:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:22,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:22,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560156316] [2023-08-29 02:30:22,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560156316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:22,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:22,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:30:22,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581502802] [2023-08-29 02:30:22,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:22,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:30:22,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:30:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:30:23,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 410 [2023-08-29 02:30:23,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 275 transitions, 1084 flow. Second operand has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2023-08-29 02:30:23,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:23,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 410 [2023-08-29 02:30:23,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:24,674 INFO L130 PetriNetUnfolder]: 2616/6060 cut-off events. [2023-08-29 02:30:24,674 INFO L131 PetriNetUnfolder]: For 1017/1043 co-relation queries the response was YES. [2023-08-29 02:30:24,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13967 conditions, 6060 events. 2616/6060 cut-off events. For 1017/1043 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 37480 event pairs, 1877 based on Foata normal form. 0/5894 useless extension candidates. Maximal degree in co-relation 13959. Up to 5026 conditions per place. [2023-08-29 02:30:24,711 INFO L137 encePairwiseOnDemand]: 376/410 looper letters, 288 selfloop transitions, 121 changer transitions 0/451 dead transitions. [2023-08-29 02:30:24,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 451 transitions, 2304 flow [2023-08-29 02:30:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:30:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:30:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1330 transitions. [2023-08-29 02:30:24,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540650406504065 [2023-08-29 02:30:24,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1330 transitions. [2023-08-29 02:30:24,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1330 transitions. [2023-08-29 02:30:24,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:24,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1330 transitions. [2023-08-29 02:30:24,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 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) [2023-08-29 02:30:24,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-29 02:30:24,726 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-29 02:30:24,727 INFO L175 Difference]: Start difference. First operand has 139 places, 275 transitions, 1084 flow. Second operand 6 states and 1330 transitions. [2023-08-29 02:30:24,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 451 transitions, 2304 flow [2023-08-29 02:30:24,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 451 transitions, 2304 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:30:24,749 INFO L231 Difference]: Finished difference. Result has 148 places, 391 transitions, 1790 flow [2023-08-29 02:30:24,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=148, PETRI_TRANSITIONS=391} [2023-08-29 02:30:24,750 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2023-08-29 02:30:24,750 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 391 transitions, 1790 flow [2023-08-29 02:30:24,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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) [2023-08-29 02:30:24,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:24,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:24,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:30:24,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:24,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:24,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1255662643, now seen corresponding path program 1 times [2023-08-29 02:30:24,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:24,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500381141] [2023-08-29 02:30:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:25,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:25,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500381141] [2023-08-29 02:30:25,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500381141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:25,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:25,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:30:25,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171004315] [2023-08-29 02:30:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:25,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:30:25,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:30:25,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:30:26,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:30:26,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 391 transitions, 1790 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:26,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:26,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:30:26,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:29,952 INFO L130 PetriNetUnfolder]: 8244/19274 cut-off events. [2023-08-29 02:30:29,953 INFO L131 PetriNetUnfolder]: For 8418/8531 co-relation queries the response was YES. [2023-08-29 02:30:29,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52691 conditions, 19274 events. 8244/19274 cut-off events. For 8418/8531 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 162202 event pairs, 1133 based on Foata normal form. 20/18712 useless extension candidates. Maximal degree in co-relation 52678. Up to 6023 conditions per place. [2023-08-29 02:30:30,077 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1371 selfloop transitions, 168 changer transitions 4/1590 dead transitions. [2023-08-29 02:30:30,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 1590 transitions, 10389 flow [2023-08-29 02:30:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 02:30:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 02:30:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4061 transitions. [2023-08-29 02:30:30,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4952439024390244 [2023-08-29 02:30:30,088 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4061 transitions. [2023-08-29 02:30:30,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4061 transitions. [2023-08-29 02:30:30,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:30,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4061 transitions. [2023-08-29 02:30:30,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 203.05) internal successors, (4061), 20 states have internal predecessors, (4061), 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) [2023-08-29 02:30:30,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 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) [2023-08-29 02:30:30,116 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 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) [2023-08-29 02:30:30,116 INFO L175 Difference]: Start difference. First operand has 148 places, 391 transitions, 1790 flow. Second operand 20 states and 4061 transitions. [2023-08-29 02:30:30,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 1590 transitions, 10389 flow [2023-08-29 02:30:30,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 1590 transitions, 10215 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-29 02:30:30,229 INFO L231 Difference]: Finished difference. Result has 185 places, 559 transitions, 3560 flow [2023-08-29 02:30:30,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3560, PETRI_PLACES=185, PETRI_TRANSITIONS=559} [2023-08-29 02:30:30,232 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 51 predicate places. [2023-08-29 02:30:30,232 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 559 transitions, 3560 flow [2023-08-29 02:30:30,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:30,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:30,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:30,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:30:30,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:30,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash -920409819, now seen corresponding path program 2 times [2023-08-29 02:30:30,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:30,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948644769] [2023-08-29 02:30:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:30,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:30,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:30,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948644769] [2023-08-29 02:30:30,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948644769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:30,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:30,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:30:30,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749463231] [2023-08-29 02:30:30,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:30,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:30:30,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:30:30,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:30:31,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:30:31,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 559 transitions, 3560 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:31,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:31,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:30:31,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:36,586 INFO L130 PetriNetUnfolder]: 10629/24755 cut-off events. [2023-08-29 02:30:36,587 INFO L131 PetriNetUnfolder]: For 22771/22959 co-relation queries the response was YES. [2023-08-29 02:30:36,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73640 conditions, 24755 events. 10629/24755 cut-off events. For 22771/22959 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 217408 event pairs, 1438 based on Foata normal form. 24/24088 useless extension candidates. Maximal degree in co-relation 73608. Up to 12755 conditions per place. [2023-08-29 02:30:36,797 INFO L137 encePairwiseOnDemand]: 368/410 looper letters, 1000 selfloop transitions, 206 changer transitions 4/1257 dead transitions. [2023-08-29 02:30:36,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 1257 transitions, 9473 flow [2023-08-29 02:30:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 02:30:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 02:30:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4473 transitions. [2023-08-29 02:30:36,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4743372216330859 [2023-08-29 02:30:36,811 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4473 transitions. [2023-08-29 02:30:36,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4473 transitions. [2023-08-29 02:30:36,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:36,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4473 transitions. [2023-08-29 02:30:36,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 194.47826086956522) internal successors, (4473), 23 states have internal predecessors, (4473), 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) [2023-08-29 02:30:36,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 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) [2023-08-29 02:30:36,845 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 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) [2023-08-29 02:30:36,845 INFO L175 Difference]: Start difference. First operand has 185 places, 559 transitions, 3560 flow. Second operand 23 states and 4473 transitions. [2023-08-29 02:30:36,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 1257 transitions, 9473 flow [2023-08-29 02:30:37,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 1257 transitions, 9473 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:30:37,216 INFO L231 Difference]: Finished difference. Result has 225 places, 749 transitions, 6039 flow [2023-08-29 02:30:37,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=3560, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6039, PETRI_PLACES=225, PETRI_TRANSITIONS=749} [2023-08-29 02:30:37,219 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 91 predicate places. [2023-08-29 02:30:37,220 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 749 transitions, 6039 flow [2023-08-29 02:30:37,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:37,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:37,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:37,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:30:37,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:37,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:37,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1530874218, now seen corresponding path program 1 times [2023-08-29 02:30:37,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:37,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996108936] [2023-08-29 02:30:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:37,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:37,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:37,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996108936] [2023-08-29 02:30:37,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996108936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:37,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:37,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:30:37,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953672407] [2023-08-29 02:30:37,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:37,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:30:37,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:37,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:30:37,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:30:38,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:30:38,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 749 transitions, 6039 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:38,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:38,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:30:38,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:43,770 INFO L130 PetriNetUnfolder]: 10910/25337 cut-off events. [2023-08-29 02:30:43,770 INFO L131 PetriNetUnfolder]: For 42020/42385 co-relation queries the response was YES. [2023-08-29 02:30:43,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80514 conditions, 25337 events. 10910/25337 cut-off events. For 42020/42385 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 219124 event pairs, 5904 based on Foata normal form. 39/24653 useless extension candidates. Maximal degree in co-relation 80463. Up to 15086 conditions per place. [2023-08-29 02:30:44,010 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 693 selfloop transitions, 196 changer transitions 2/933 dead transitions. [2023-08-29 02:30:44,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 933 transitions, 8766 flow [2023-08-29 02:30:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:30:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:30:44,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2047 transitions. [2023-08-29 02:30:44,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49926829268292683 [2023-08-29 02:30:44,019 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2047 transitions. [2023-08-29 02:30:44,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2047 transitions. [2023-08-29 02:30:44,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:44,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2047 transitions. [2023-08-29 02:30:44,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 204.7) internal successors, (2047), 10 states have internal predecessors, (2047), 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) [2023-08-29 02:30:44,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:30:44,031 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:30:44,032 INFO L175 Difference]: Start difference. First operand has 225 places, 749 transitions, 6039 flow. Second operand 10 states and 2047 transitions. [2023-08-29 02:30:44,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 933 transitions, 8766 flow [2023-08-29 02:30:44,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 933 transitions, 8318 flow, removed 224 selfloop flow, removed 0 redundant places. [2023-08-29 02:30:44,449 INFO L231 Difference]: Finished difference. Result has 237 places, 756 transitions, 6121 flow [2023-08-29 02:30:44,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5625, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6121, PETRI_PLACES=237, PETRI_TRANSITIONS=756} [2023-08-29 02:30:44,450 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 103 predicate places. [2023-08-29 02:30:44,451 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 756 transitions, 6121 flow [2023-08-29 02:30:44,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:44,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:44,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:44,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:30:44,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:44,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash 471163734, now seen corresponding path program 2 times [2023-08-29 02:30:44,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:44,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996164984] [2023-08-29 02:30:44,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:44,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:44,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996164984] [2023-08-29 02:30:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996164984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:44,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:44,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:30:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052999961] [2023-08-29 02:30:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:44,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:30:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:30:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:30:45,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:30:45,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 756 transitions, 6121 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:45,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:45,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:30:45,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:30:51,962 INFO L130 PetriNetUnfolder]: 11745/27298 cut-off events. [2023-08-29 02:30:51,963 INFO L131 PetriNetUnfolder]: For 47295/47756 co-relation queries the response was YES. [2023-08-29 02:30:52,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88275 conditions, 27298 events. 11745/27298 cut-off events. For 47295/47756 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 238390 event pairs, 5744 based on Foata normal form. 19/26572 useless extension candidates. Maximal degree in co-relation 88220. Up to 17887 conditions per place. [2023-08-29 02:30:52,228 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 1291 selfloop transitions, 145 changer transitions 4/1482 dead transitions. [2023-08-29 02:30:52,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 1482 transitions, 13482 flow [2023-08-29 02:30:52,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:30:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:30:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2629 transitions. [2023-08-29 02:30:52,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5343495934959349 [2023-08-29 02:30:52,235 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2629 transitions. [2023-08-29 02:30:52,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2629 transitions. [2023-08-29 02:30:52,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:30:52,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2629 transitions. [2023-08-29 02:30:52,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 219.08333333333334) internal successors, (2629), 12 states have internal predecessors, (2629), 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) [2023-08-29 02:30:52,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:30:52,250 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:30:52,250 INFO L175 Difference]: Start difference. First operand has 237 places, 756 transitions, 6121 flow. Second operand 12 states and 2629 transitions. [2023-08-29 02:30:52,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 1482 transitions, 13482 flow [2023-08-29 02:30:52,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1482 transitions, 12896 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-29 02:30:52,672 INFO L231 Difference]: Finished difference. Result has 249 places, 875 transitions, 7242 flow [2023-08-29 02:30:52,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5773, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7242, PETRI_PLACES=249, PETRI_TRANSITIONS=875} [2023-08-29 02:30:52,674 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 115 predicate places. [2023-08-29 02:30:52,674 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 875 transitions, 7242 flow [2023-08-29 02:30:52,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:52,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:30:52,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:30:52,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:30:52,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:30:52,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:30:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1945509048, now seen corresponding path program 3 times [2023-08-29 02:30:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:30:52,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600942666] [2023-08-29 02:30:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:30:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:30:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:30:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:30:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:30:53,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600942666] [2023-08-29 02:30:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600942666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:30:53,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:30:53,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:30:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442668423] [2023-08-29 02:30:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:30:53,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:30:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:30:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:30:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:30:53,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:30:53,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 875 transitions, 7242 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:30:53,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:30:53,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:30:53,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:01,044 INFO L130 PetriNetUnfolder]: 12624/29157 cut-off events. [2023-08-29 02:31:01,045 INFO L131 PetriNetUnfolder]: For 57425/57912 co-relation queries the response was YES. [2023-08-29 02:31:01,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97269 conditions, 29157 events. 12624/29157 cut-off events. For 57425/57912 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 257153 event pairs, 4078 based on Foata normal form. 25/28380 useless extension candidates. Maximal degree in co-relation 97207. Up to 9940 conditions per place. [2023-08-29 02:31:01,338 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1199 selfloop transitions, 277 changer transitions 4/1522 dead transitions. [2023-08-29 02:31:01,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1522 transitions, 14232 flow [2023-08-29 02:31:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:31:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:31:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2601 transitions. [2023-08-29 02:31:01,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286585365853659 [2023-08-29 02:31:01,345 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2601 transitions. [2023-08-29 02:31:01,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2601 transitions. [2023-08-29 02:31:01,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:01,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2601 transitions. [2023-08-29 02:31:01,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 216.75) internal successors, (2601), 12 states have internal predecessors, (2601), 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) [2023-08-29 02:31:01,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:01,358 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:01,358 INFO L175 Difference]: Start difference. First operand has 249 places, 875 transitions, 7242 flow. Second operand 12 states and 2601 transitions. [2023-08-29 02:31:01,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1522 transitions, 14232 flow [2023-08-29 02:31:01,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1522 transitions, 14181 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-08-29 02:31:01,833 INFO L231 Difference]: Finished difference. Result has 266 places, 1004 transitions, 9524 flow [2023-08-29 02:31:01,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=7199, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9524, PETRI_PLACES=266, PETRI_TRANSITIONS=1004} [2023-08-29 02:31:01,834 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 132 predicate places. [2023-08-29 02:31:01,834 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 1004 transitions, 9524 flow [2023-08-29 02:31:01,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:01,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:01,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:01,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:31:01,836 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:01,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:01,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1284896658, now seen corresponding path program 4 times [2023-08-29 02:31:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:01,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285100880] [2023-08-29 02:31:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:02,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285100880] [2023-08-29 02:31:02,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285100880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:02,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:02,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721792343] [2023-08-29 02:31:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:02,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:03,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:03,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 1004 transitions, 9524 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:03,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:03,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:03,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:11,531 INFO L130 PetriNetUnfolder]: 12658/29329 cut-off events. [2023-08-29 02:31:11,531 INFO L131 PetriNetUnfolder]: For 66789/67420 co-relation queries the response was YES. [2023-08-29 02:31:11,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101611 conditions, 29329 events. 12658/29329 cut-off events. For 66789/67420 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 258801 event pairs, 7065 based on Foata normal form. 57/28567 useless extension candidates. Maximal degree in co-relation 101542. Up to 15089 conditions per place. [2023-08-29 02:31:11,890 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 739 selfloop transitions, 429 changer transitions 2/1212 dead transitions. [2023-08-29 02:31:11,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 1212 transitions, 13085 flow [2023-08-29 02:31:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:31:11,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:31:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2398 transitions. [2023-08-29 02:31:11,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48739837398373986 [2023-08-29 02:31:11,898 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2398 transitions. [2023-08-29 02:31:11,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2398 transitions. [2023-08-29 02:31:11,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:11,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2398 transitions. [2023-08-29 02:31:11,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 199.83333333333334) internal successors, (2398), 12 states have internal predecessors, (2398), 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) [2023-08-29 02:31:11,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:11,911 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:11,911 INFO L175 Difference]: Start difference. First operand has 266 places, 1004 transitions, 9524 flow. Second operand 12 states and 2398 transitions. [2023-08-29 02:31:11,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 1212 transitions, 13085 flow [2023-08-29 02:31:12,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1212 transitions, 13008 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-08-29 02:31:12,455 INFO L231 Difference]: Finished difference. Result has 282 places, 1021 transitions, 10743 flow [2023-08-29 02:31:12,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=9450, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1004, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10743, PETRI_PLACES=282, PETRI_TRANSITIONS=1021} [2023-08-29 02:31:12,457 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 148 predicate places. [2023-08-29 02:31:12,457 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 1021 transitions, 10743 flow [2023-08-29 02:31:12,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:12,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:12,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:12,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:31:12,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:12,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:12,458 INFO L85 PathProgramCache]: Analyzing trace with hash 182703382, now seen corresponding path program 5 times [2023-08-29 02:31:12,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:12,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735525245] [2023-08-29 02:31:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:12,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:12,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:12,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735525245] [2023-08-29 02:31:12,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735525245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:12,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:12,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:12,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667996784] [2023-08-29 02:31:12,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:12,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:12,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:12,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:13,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:13,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1021 transitions, 10743 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:13,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:13,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:13,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:21,948 INFO L130 PetriNetUnfolder]: 12738/29878 cut-off events. [2023-08-29 02:31:21,948 INFO L131 PetriNetUnfolder]: For 78611/79155 co-relation queries the response was YES. [2023-08-29 02:31:22,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107078 conditions, 29878 events. 12738/29878 cut-off events. For 78611/79155 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 268427 event pairs, 2212 based on Foata normal form. 27/29123 useless extension candidates. Maximal degree in co-relation 107003. Up to 12847 conditions per place. [2023-08-29 02:31:22,306 INFO L137 encePairwiseOnDemand]: 377/410 looper letters, 1343 selfloop transitions, 178 changer transitions 4/1567 dead transitions. [2023-08-29 02:31:22,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1567 transitions, 17360 flow [2023-08-29 02:31:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:31:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:31:22,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2919 transitions. [2023-08-29 02:31:22,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085365853658537 [2023-08-29 02:31:22,312 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2919 transitions. [2023-08-29 02:31:22,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2919 transitions. [2023-08-29 02:31:22,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:22,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2919 transitions. [2023-08-29 02:31:22,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 208.5) internal successors, (2919), 14 states have internal predecessors, (2919), 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) [2023-08-29 02:31:22,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:31:22,323 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:31:22,323 INFO L175 Difference]: Start difference. First operand has 282 places, 1021 transitions, 10743 flow. Second operand 14 states and 2919 transitions. [2023-08-29 02:31:22,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1567 transitions, 17360 flow [2023-08-29 02:31:23,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 1567 transitions, 16478 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-29 02:31:23,098 INFO L231 Difference]: Finished difference. Result has 295 places, 1130 transitions, 12013 flow [2023-08-29 02:31:23,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12013, PETRI_PLACES=295, PETRI_TRANSITIONS=1130} [2023-08-29 02:31:23,100 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2023-08-29 02:31:23,100 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 1130 transitions, 12013 flow [2023-08-29 02:31:23,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:23,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:23,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:23,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:31:23,101 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:23,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash -494380147, now seen corresponding path program 3 times [2023-08-29 02:31:23,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:23,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073043969] [2023-08-29 02:31:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:23,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:23,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:23,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073043969] [2023-08-29 02:31:23,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073043969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:23,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:23,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:23,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194588529] [2023-08-29 02:31:23,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:23,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:23,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:23,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:24,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:24,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 1130 transitions, 12013 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:24,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:24,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:24,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:33,654 INFO L130 PetriNetUnfolder]: 12315/28728 cut-off events. [2023-08-29 02:31:33,655 INFO L131 PetriNetUnfolder]: For 98903/99872 co-relation queries the response was YES. [2023-08-29 02:31:33,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105868 conditions, 28728 events. 12315/28728 cut-off events. For 98903/99872 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 256110 event pairs, 3375 based on Foata normal form. 83/27913 useless extension candidates. Maximal degree in co-relation 105788. Up to 17910 conditions per place. [2023-08-29 02:31:33,984 INFO L137 encePairwiseOnDemand]: 362/410 looper letters, 1105 selfloop transitions, 670 changer transitions 4/1842 dead transitions. [2023-08-29 02:31:33,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1842 transitions, 20141 flow [2023-08-29 02:31:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-29 02:31:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-29 02:31:33,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6244 transitions. [2023-08-29 02:31:33,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47591463414634144 [2023-08-29 02:31:33,990 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6244 transitions. [2023-08-29 02:31:33,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6244 transitions. [2023-08-29 02:31:33,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:33,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6244 transitions. [2023-08-29 02:31:33,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 195.125) internal successors, (6244), 32 states have internal predecessors, (6244), 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) [2023-08-29 02:31:34,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 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) [2023-08-29 02:31:34,012 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 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) [2023-08-29 02:31:34,012 INFO L175 Difference]: Start difference. First operand has 295 places, 1130 transitions, 12013 flow. Second operand 32 states and 6244 transitions. [2023-08-29 02:31:34,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1842 transitions, 20141 flow [2023-08-29 02:31:34,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1842 transitions, 19635 flow, removed 177 selfloop flow, removed 7 redundant places. [2023-08-29 02:31:34,882 INFO L231 Difference]: Finished difference. Result has 327 places, 1324 transitions, 15581 flow [2023-08-29 02:31:34,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=11609, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=15581, PETRI_PLACES=327, PETRI_TRANSITIONS=1324} [2023-08-29 02:31:34,883 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 193 predicate places. [2023-08-29 02:31:34,884 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1324 transitions, 15581 flow [2023-08-29 02:31:34,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:34,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:34,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:34,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:31:34,885 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:34,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:34,885 INFO L85 PathProgramCache]: Analyzing trace with hash 895307170, now seen corresponding path program 6 times [2023-08-29 02:31:34,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:34,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519258628] [2023-08-29 02:31:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:34,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:35,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:35,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519258628] [2023-08-29 02:31:35,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519258628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:35,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:35,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405933592] [2023-08-29 02:31:35,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:35,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:36,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:36,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1324 transitions, 15581 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:36,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:36,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:36,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:44,987 INFO L130 PetriNetUnfolder]: 12745/29527 cut-off events. [2023-08-29 02:31:44,988 INFO L131 PetriNetUnfolder]: For 109073/109837 co-relation queries the response was YES. [2023-08-29 02:31:45,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113160 conditions, 29527 events. 12745/29527 cut-off events. For 109073/109837 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 260503 event pairs, 7030 based on Foata normal form. 67/28780 useless extension candidates. Maximal degree in co-relation 113072. Up to 15297 conditions per place. [2023-08-29 02:31:45,370 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 882 selfloop transitions, 541 changer transitions 2/1479 dead transitions. [2023-08-29 02:31:45,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1479 transitions, 19568 flow [2023-08-29 02:31:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:31:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:31:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1970 transitions. [2023-08-29 02:31:45,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2023-08-29 02:31:45,373 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1970 transitions. [2023-08-29 02:31:45,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1970 transitions. [2023-08-29 02:31:45,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:45,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1970 transitions. [2023-08-29 02:31:45,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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) [2023-08-29 02:31:45,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:31:45,377 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:31:45,377 INFO L175 Difference]: Start difference. First operand has 327 places, 1324 transitions, 15581 flow. Second operand 10 states and 1970 transitions. [2023-08-29 02:31:45,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1479 transitions, 19568 flow [2023-08-29 02:31:46,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1479 transitions, 18655 flow, removed 409 selfloop flow, removed 4 redundant places. [2023-08-29 02:31:46,712 INFO L231 Difference]: Finished difference. Result has 337 places, 1336 transitions, 16396 flow [2023-08-29 02:31:46,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=14732, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=530, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16396, PETRI_PLACES=337, PETRI_TRANSITIONS=1336} [2023-08-29 02:31:46,716 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 203 predicate places. [2023-08-29 02:31:46,716 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1336 transitions, 16396 flow [2023-08-29 02:31:46,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:46,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:46,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:46,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:31:46,717 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:46,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1045145788, now seen corresponding path program 7 times [2023-08-29 02:31:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509553191] [2023-08-29 02:31:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:46,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:47,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509553191] [2023-08-29 02:31:47,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509553191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:47,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:47,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:47,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123088050] [2023-08-29 02:31:47,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:47,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:47,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:47,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:47,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:48,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:48,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1336 transitions, 16396 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:48,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:48,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:48,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:31:57,249 INFO L130 PetriNetUnfolder]: 12884/30222 cut-off events. [2023-08-29 02:31:57,250 INFO L131 PetriNetUnfolder]: For 106256/106897 co-relation queries the response was YES. [2023-08-29 02:31:57,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116107 conditions, 30222 events. 12884/30222 cut-off events. For 106256/106897 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 270561 event pairs, 2878 based on Foata normal form. 24/29474 useless extension candidates. Maximal degree in co-relation 116013. Up to 12834 conditions per place. [2023-08-29 02:31:57,671 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1477 selfloop transitions, 226 changer transitions 4/1761 dead transitions. [2023-08-29 02:31:57,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1761 transitions, 22899 flow [2023-08-29 02:31:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:31:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:31:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2476 transitions. [2023-08-29 02:31:57,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5032520325203252 [2023-08-29 02:31:57,673 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2476 transitions. [2023-08-29 02:31:57,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2476 transitions. [2023-08-29 02:31:57,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:31:57,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2476 transitions. [2023-08-29 02:31:57,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 206.33333333333334) internal successors, (2476), 12 states have internal predecessors, (2476), 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) [2023-08-29 02:31:57,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:57,678 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:31:57,678 INFO L175 Difference]: Start difference. First operand has 337 places, 1336 transitions, 16396 flow. Second operand 12 states and 2476 transitions. [2023-08-29 02:31:57,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1761 transitions, 22899 flow [2023-08-29 02:31:58,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 1761 transitions, 21928 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-29 02:31:58,707 INFO L231 Difference]: Finished difference. Result has 349 places, 1386 transitions, 17037 flow [2023-08-29 02:31:58,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=15482, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17037, PETRI_PLACES=349, PETRI_TRANSITIONS=1386} [2023-08-29 02:31:58,708 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 215 predicate places. [2023-08-29 02:31:58,709 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 1386 transitions, 17037 flow [2023-08-29 02:31:58,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:58,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:31:58,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:31:58,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:31:58,709 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:31:58,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:31:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2009927556, now seen corresponding path program 8 times [2023-08-29 02:31:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:31:58,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140831410] [2023-08-29 02:31:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:31:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:31:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:31:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:31:59,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:31:59,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140831410] [2023-08-29 02:31:59,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140831410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:31:59,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:31:59,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:31:59,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460561559] [2023-08-29 02:31:59,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:31:59,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:31:59,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:31:59,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:31:59,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:31:59,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:31:59,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1386 transitions, 17037 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:31:59,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:31:59,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:31:59,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:32:09,548 INFO L130 PetriNetUnfolder]: 12961/30229 cut-off events. [2023-08-29 02:32:09,548 INFO L131 PetriNetUnfolder]: For 140487/141103 co-relation queries the response was YES. [2023-08-29 02:32:09,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118989 conditions, 30229 events. 12961/30229 cut-off events. For 140487/141103 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 268742 event pairs, 4508 based on Foata normal form. 46/29717 useless extension candidates. Maximal degree in co-relation 118890. Up to 10462 conditions per place. [2023-08-29 02:32:09,950 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 2019 selfloop transitions, 176 changer transitions 6/2255 dead transitions. [2023-08-29 02:32:09,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 2255 transitions, 28518 flow [2023-08-29 02:32:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:32:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:32:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3089 transitions. [2023-08-29 02:32:09,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5381533101045296 [2023-08-29 02:32:09,953 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3089 transitions. [2023-08-29 02:32:09,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3089 transitions. [2023-08-29 02:32:09,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:32:09,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3089 transitions. [2023-08-29 02:32:09,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 220.64285714285714) internal successors, (3089), 14 states have internal predecessors, (3089), 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) [2023-08-29 02:32:09,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:32:09,959 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:32:09,959 INFO L175 Difference]: Start difference. First operand has 349 places, 1386 transitions, 17037 flow. Second operand 14 states and 3089 transitions. [2023-08-29 02:32:09,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 2255 transitions, 28518 flow [2023-08-29 02:32:11,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 2255 transitions, 28203 flow, removed 116 selfloop flow, removed 3 redundant places. [2023-08-29 02:32:11,114 INFO L231 Difference]: Finished difference. Result has 366 places, 1497 transitions, 19161 flow [2023-08-29 02:32:11,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=16722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19161, PETRI_PLACES=366, PETRI_TRANSITIONS=1497} [2023-08-29 02:32:11,116 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 232 predicate places. [2023-08-29 02:32:11,116 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 1497 transitions, 19161 flow [2023-08-29 02:32:11,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:11,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:32:11,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:32:11,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:32:11,117 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:32:11,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:32:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1952860698, now seen corresponding path program 9 times [2023-08-29 02:32:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:32:11,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194329159] [2023-08-29 02:32:11,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:32:11,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:32:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:32:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:32:11,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:32:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194329159] [2023-08-29 02:32:11,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194329159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:32:11,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:32:11,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:32:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468333003] [2023-08-29 02:32:11,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:32:11,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:32:11,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:32:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:32:11,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:32:12,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:32:12,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1497 transitions, 19161 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:12,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:32:12,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:32:12,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:32:23,200 INFO L130 PetriNetUnfolder]: 12976/30130 cut-off events. [2023-08-29 02:32:23,200 INFO L131 PetriNetUnfolder]: For 171923/172618 co-relation queries the response was YES. [2023-08-29 02:32:23,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122322 conditions, 30130 events. 12976/30130 cut-off events. For 171923/172618 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 266050 event pairs, 5124 based on Foata normal form. 59/29633 useless extension candidates. Maximal degree in co-relation 122216. Up to 10462 conditions per place. [2023-08-29 02:32:23,650 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1571 selfloop transitions, 411 changer transitions 4/2040 dead transitions. [2023-08-29 02:32:23,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 2040 transitions, 27228 flow [2023-08-29 02:32:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:32:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:32:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2783 transitions. [2023-08-29 02:32:23,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5221388367729831 [2023-08-29 02:32:23,653 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2783 transitions. [2023-08-29 02:32:23,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2783 transitions. [2023-08-29 02:32:23,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:32:23,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2783 transitions. [2023-08-29 02:32:23,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 214.07692307692307) internal successors, (2783), 13 states have internal predecessors, (2783), 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) [2023-08-29 02:32:23,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-29 02:32:23,660 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-29 02:32:23,660 INFO L175 Difference]: Start difference. First operand has 366 places, 1497 transitions, 19161 flow. Second operand 13 states and 2783 transitions. [2023-08-29 02:32:23,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 2040 transitions, 27228 flow [2023-08-29 02:32:24,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 2040 transitions, 26731 flow, removed 205 selfloop flow, removed 4 redundant places. [2023-08-29 02:32:25,016 INFO L231 Difference]: Finished difference. Result has 378 places, 1510 transitions, 19985 flow [2023-08-29 02:32:25,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=18670, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=398, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1089, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19985, PETRI_PLACES=378, PETRI_TRANSITIONS=1510} [2023-08-29 02:32:25,018 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 244 predicate places. [2023-08-29 02:32:25,018 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1510 transitions, 19985 flow [2023-08-29 02:32:25,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:25,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:32:25,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:32:25,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:32:25,018 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:32:25,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:32:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 337311342, now seen corresponding path program 10 times [2023-08-29 02:32:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:32:25,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050116955] [2023-08-29 02:32:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:32:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:32:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:32:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:32:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:32:25,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050116955] [2023-08-29 02:32:25,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050116955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:32:25,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:32:25,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:32:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525687356] [2023-08-29 02:32:25,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:32:25,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:32:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:32:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:32:25,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:32:26,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:32:26,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1510 transitions, 19985 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:26,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:32:26,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:32:26,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:32:36,774 INFO L130 PetriNetUnfolder]: 13034/30136 cut-off events. [2023-08-29 02:32:36,774 INFO L131 PetriNetUnfolder]: For 187262/187991 co-relation queries the response was YES. [2023-08-29 02:32:37,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125330 conditions, 30136 events. 13034/30136 cut-off events. For 187262/187991 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 266022 event pairs, 7053 based on Foata normal form. 70/29603 useless extension candidates. Maximal degree in co-relation 125220. Up to 15577 conditions per place. [2023-08-29 02:32:37,327 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1000 selfloop transitions, 680 changer transitions 2/1736 dead transitions. [2023-08-29 02:32:37,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1736 transitions, 25542 flow [2023-08-29 02:32:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:32:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:32:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1970 transitions. [2023-08-29 02:32:37,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2023-08-29 02:32:37,330 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1970 transitions. [2023-08-29 02:32:37,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1970 transitions. [2023-08-29 02:32:37,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:32:37,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1970 transitions. [2023-08-29 02:32:37,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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) [2023-08-29 02:32:37,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:32:37,336 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:32:37,336 INFO L175 Difference]: Start difference. First operand has 378 places, 1510 transitions, 19985 flow. Second operand 10 states and 1970 transitions. [2023-08-29 02:32:37,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1736 transitions, 25542 flow [2023-08-29 02:32:38,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 1736 transitions, 24778 flow, removed 72 selfloop flow, removed 7 redundant places. [2023-08-29 02:32:38,889 INFO L231 Difference]: Finished difference. Result has 386 places, 1545 transitions, 22075 flow [2023-08-29 02:32:38,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=19223, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22075, PETRI_PLACES=386, PETRI_TRANSITIONS=1545} [2023-08-29 02:32:38,890 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 252 predicate places. [2023-08-29 02:32:38,890 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 1545 transitions, 22075 flow [2023-08-29 02:32:38,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:38,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:32:38,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:32:38,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:32:38,891 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:32:38,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:32:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1186330089, now seen corresponding path program 4 times [2023-08-29 02:32:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:32:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479717260] [2023-08-29 02:32:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:32:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:32:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:32:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:32:39,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:32:39,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479717260] [2023-08-29 02:32:39,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479717260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:32:39,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:32:39,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:32:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586545620] [2023-08-29 02:32:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:32:39,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:32:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:32:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:32:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:32:40,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:32:40,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1545 transitions, 22075 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:40,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:32:40,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:32:40,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:32:50,997 INFO L130 PetriNetUnfolder]: 12553/29080 cut-off events. [2023-08-29 02:32:50,997 INFO L131 PetriNetUnfolder]: For 206667/207857 co-relation queries the response was YES. [2023-08-29 02:32:51,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123947 conditions, 29080 events. 12553/29080 cut-off events. For 206667/207857 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 256021 event pairs, 5257 based on Foata normal form. 94/28368 useless extension candidates. Maximal degree in co-relation 123831. Up to 10079 conditions per place. [2023-08-29 02:32:51,542 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 2013 selfloop transitions, 227 changer transitions 6/2325 dead transitions. [2023-08-29 02:32:51,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 2325 transitions, 32804 flow [2023-08-29 02:32:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 02:32:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 02:32:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4458 transitions. [2023-08-29 02:32:51,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49423503325942353 [2023-08-29 02:32:51,548 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4458 transitions. [2023-08-29 02:32:51,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4458 transitions. [2023-08-29 02:32:51,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:32:51,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4458 transitions. [2023-08-29 02:32:51,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 202.63636363636363) internal successors, (4458), 22 states have internal predecessors, (4458), 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) [2023-08-29 02:32:51,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 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) [2023-08-29 02:32:51,561 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 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) [2023-08-29 02:32:51,562 INFO L175 Difference]: Start difference. First operand has 386 places, 1545 transitions, 22075 flow. Second operand 22 states and 4458 transitions. [2023-08-29 02:32:51,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 2325 transitions, 32804 flow [2023-08-29 02:32:53,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 2325 transitions, 32166 flow, removed 319 selfloop flow, removed 0 redundant places. [2023-08-29 02:32:53,368 INFO L231 Difference]: Finished difference. Result has 421 places, 1697 transitions, 24721 flow [2023-08-29 02:32:53,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=21657, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=24721, PETRI_PLACES=421, PETRI_TRANSITIONS=1697} [2023-08-29 02:32:53,369 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 287 predicate places. [2023-08-29 02:32:53,370 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1697 transitions, 24721 flow [2023-08-29 02:32:53,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:53,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:32:53,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:32:53,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:32:53,371 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:32:53,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:32:53,371 INFO L85 PathProgramCache]: Analyzing trace with hash 187460550, now seen corresponding path program 11 times [2023-08-29 02:32:53,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:32:53,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118863203] [2023-08-29 02:32:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:32:53,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:32:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:32:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:32:53,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:32:53,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118863203] [2023-08-29 02:32:53,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118863203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:32:53,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:32:53,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:32:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181334523] [2023-08-29 02:32:53,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:32:53,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:32:53,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:32:53,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:32:53,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:32:55,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:32:55,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1697 transitions, 24721 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:32:55,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:32:55,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:32:55,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:33:06,734 INFO L130 PetriNetUnfolder]: 13074/30049 cut-off events. [2023-08-29 02:33:06,735 INFO L131 PetriNetUnfolder]: For 205210/205991 co-relation queries the response was YES. [2023-08-29 02:33:07,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129585 conditions, 30049 events. 13074/30049 cut-off events. For 205210/205991 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 264739 event pairs, 3673 based on Foata normal form. 57/29503 useless extension candidates. Maximal degree in co-relation 129454. Up to 13045 conditions per place. [2023-08-29 02:33:07,294 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1783 selfloop transitions, 232 changer transitions 4/2073 dead transitions. [2023-08-29 02:33:07,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 2073 transitions, 31443 flow [2023-08-29 02:33:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:33:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:33:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2502 transitions. [2023-08-29 02:33:07,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085365853658537 [2023-08-29 02:33:07,299 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2502 transitions. [2023-08-29 02:33:07,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2502 transitions. [2023-08-29 02:33:07,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:33:07,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2502 transitions. [2023-08-29 02:33:07,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.5) internal successors, (2502), 12 states have internal predecessors, (2502), 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) [2023-08-29 02:33:07,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:33:07,307 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:33:07,307 INFO L175 Difference]: Start difference. First operand has 421 places, 1697 transitions, 24721 flow. Second operand 12 states and 2502 transitions. [2023-08-29 02:33:07,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 2073 transitions, 31443 flow [2023-08-29 02:33:09,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 2073 transitions, 30551 flow, removed 354 selfloop flow, removed 8 redundant places. [2023-08-29 02:33:09,184 INFO L231 Difference]: Finished difference. Result has 429 places, 1719 transitions, 24951 flow [2023-08-29 02:33:09,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=23833, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24951, PETRI_PLACES=429, PETRI_TRANSITIONS=1719} [2023-08-29 02:33:09,185 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 295 predicate places. [2023-08-29 02:33:09,185 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1719 transitions, 24951 flow [2023-08-29 02:33:09,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:09,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:33:09,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:33:09,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:33:09,186 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:33:09,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:33:09,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1147485150, now seen corresponding path program 12 times [2023-08-29 02:33:09,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:33:09,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591289500] [2023-08-29 02:33:09,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:33:09,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:33:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:33:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:33:09,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:33:09,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591289500] [2023-08-29 02:33:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591289500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:33:09,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:33:09,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:33:09,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161045996] [2023-08-29 02:33:09,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:33:09,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:33:09,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:33:09,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:33:09,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:33:10,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:33:10,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1719 transitions, 24951 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:10,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:33:10,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:33:10,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:33:21,911 INFO L130 PetriNetUnfolder]: 13124/30135 cut-off events. [2023-08-29 02:33:21,911 INFO L131 PetriNetUnfolder]: For 206868/207602 co-relation queries the response was YES. [2023-08-29 02:33:22,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130473 conditions, 30135 events. 13124/30135 cut-off events. For 206868/207602 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 265685 event pairs, 4139 based on Foata normal form. 68/29600 useless extension candidates. Maximal degree in co-relation 130338. Up to 10626 conditions per place. [2023-08-29 02:33:22,610 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1664 selfloop transitions, 440 changer transitions 4/2162 dead transitions. [2023-08-29 02:33:22,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 2162 transitions, 32663 flow [2023-08-29 02:33:22,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:33:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:33:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2524 transitions. [2023-08-29 02:33:22,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5130081300813009 [2023-08-29 02:33:22,612 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2524 transitions. [2023-08-29 02:33:22,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2524 transitions. [2023-08-29 02:33:22,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:33:22,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2524 transitions. [2023-08-29 02:33:22,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 210.33333333333334) internal successors, (2524), 12 states have internal predecessors, (2524), 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) [2023-08-29 02:33:22,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:33:22,618 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:33:22,619 INFO L175 Difference]: Start difference. First operand has 429 places, 1719 transitions, 24951 flow. Second operand 12 states and 2524 transitions. [2023-08-29 02:33:22,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 2162 transitions, 32663 flow [2023-08-29 02:33:25,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2162 transitions, 32291 flow, removed 122 selfloop flow, removed 4 redundant places. [2023-08-29 02:33:25,066 INFO L231 Difference]: Finished difference. Result has 441 places, 1752 transitions, 26762 flow [2023-08-29 02:33:25,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=24579, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26762, PETRI_PLACES=441, PETRI_TRANSITIONS=1752} [2023-08-29 02:33:25,068 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 307 predicate places. [2023-08-29 02:33:25,069 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1752 transitions, 26762 flow [2023-08-29 02:33:25,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:25,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:33:25,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:33:25,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:33:25,070 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:33:25,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:33:25,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2005001128, now seen corresponding path program 13 times [2023-08-29 02:33:25,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:33:25,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827451528] [2023-08-29 02:33:25,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:33:25,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:33:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:33:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:33:25,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:33:25,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827451528] [2023-08-29 02:33:25,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827451528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:33:25,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:33:25,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:33:25,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886152051] [2023-08-29 02:33:25,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:33:25,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:33:25,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:33:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:33:25,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:33:26,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:33:26,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1752 transitions, 26762 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:26,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:33:26,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:33:26,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:33:38,689 INFO L130 PetriNetUnfolder]: 13093/30100 cut-off events. [2023-08-29 02:33:38,689 INFO L131 PetriNetUnfolder]: For 226029/226752 co-relation queries the response was YES. [2023-08-29 02:33:39,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132537 conditions, 30100 events. 13093/30100 cut-off events. For 226029/226752 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 265178 event pairs, 4156 based on Foata normal form. 75/29575 useless extension candidates. Maximal degree in co-relation 132397. Up to 10626 conditions per place. [2023-08-29 02:33:39,524 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1681 selfloop transitions, 454 changer transitions 4/2193 dead transitions. [2023-08-29 02:33:39,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 2193 transitions, 33930 flow [2023-08-29 02:33:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:33:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:33:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2965 transitions. [2023-08-29 02:33:39,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5165505226480837 [2023-08-29 02:33:39,528 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2965 transitions. [2023-08-29 02:33:39,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2965 transitions. [2023-08-29 02:33:39,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:33:39,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2965 transitions. [2023-08-29 02:33:39,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 211.78571428571428) internal successors, (2965), 14 states have internal predecessors, (2965), 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) [2023-08-29 02:33:39,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:33:39,538 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-29 02:33:39,538 INFO L175 Difference]: Start difference. First operand has 441 places, 1752 transitions, 26762 flow. Second operand 14 states and 2965 transitions. [2023-08-29 02:33:39,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 2193 transitions, 33930 flow [2023-08-29 02:33:41,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 2193 transitions, 33003 flow, removed 240 selfloop flow, removed 4 redundant places. [2023-08-29 02:33:42,005 INFO L231 Difference]: Finished difference. Result has 456 places, 1771 transitions, 27626 flow [2023-08-29 02:33:42,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=25898, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27626, PETRI_PLACES=456, PETRI_TRANSITIONS=1771} [2023-08-29 02:33:42,006 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 322 predicate places. [2023-08-29 02:33:42,006 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1771 transitions, 27626 flow [2023-08-29 02:33:42,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:42,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:33:42,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:33:42,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:33:42,007 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:33:42,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:33:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash -149475660, now seen corresponding path program 14 times [2023-08-29 02:33:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:33:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650864533] [2023-08-29 02:33:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:33:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:33:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:33:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:33:42,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:33:42,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650864533] [2023-08-29 02:33:42,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650864533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:33:42,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:33:42,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:33:42,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432227527] [2023-08-29 02:33:42,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:33:42,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:33:42,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:33:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:33:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:33:43,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:33:43,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1771 transitions, 27626 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:43,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:33:43,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:33:43,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:33:55,388 INFO L130 PetriNetUnfolder]: 13090/30439 cut-off events. [2023-08-29 02:33:55,388 INFO L131 PetriNetUnfolder]: For 229682/230555 co-relation queries the response was YES. [2023-08-29 02:33:55,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134081 conditions, 30439 events. 13090/30439 cut-off events. For 229682/230555 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 270199 event pairs, 4061 based on Foata normal form. 52/29934 useless extension candidates. Maximal degree in co-relation 133935. Up to 13111 conditions per place. [2023-08-29 02:33:56,059 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1840 selfloop transitions, 236 changer transitions 4/2134 dead transitions. [2023-08-29 02:33:56,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 2134 transitions, 34114 flow [2023-08-29 02:33:56,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:33:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:33:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2735 transitions. [2023-08-29 02:33:56,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131332082551595 [2023-08-29 02:33:56,062 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2735 transitions. [2023-08-29 02:33:56,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2735 transitions. [2023-08-29 02:33:56,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:33:56,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2735 transitions. [2023-08-29 02:33:56,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 210.3846153846154) internal successors, (2735), 13 states have internal predecessors, (2735), 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) [2023-08-29 02:33:56,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-29 02:33:56,068 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-29 02:33:56,069 INFO L175 Difference]: Start difference. First operand has 456 places, 1771 transitions, 27626 flow. Second operand 13 states and 2735 transitions. [2023-08-29 02:33:56,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 2134 transitions, 34114 flow [2023-08-29 02:33:58,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 2134 transitions, 33648 flow, removed 136 selfloop flow, removed 5 redundant places. [2023-08-29 02:33:58,918 INFO L231 Difference]: Finished difference. Result has 468 places, 1785 transitions, 28138 flow [2023-08-29 02:33:58,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27180, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28138, PETRI_PLACES=468, PETRI_TRANSITIONS=1785} [2023-08-29 02:33:58,920 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 334 predicate places. [2023-08-29 02:33:58,920 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1785 transitions, 28138 flow [2023-08-29 02:33:58,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:33:58,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:33:58,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:33:58,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:33:58,920 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:33:58,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:33:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1239595030, now seen corresponding path program 15 times [2023-08-29 02:33:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:33:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50662152] [2023-08-29 02:33:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:33:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:33:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:33:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:33:59,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:33:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50662152] [2023-08-29 02:33:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50662152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:33:59,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:33:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:33:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287535435] [2023-08-29 02:33:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:33:59,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:33:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:33:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:33:59,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:34:00,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:34:00,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1785 transitions, 28138 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:00,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:34:00,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:34:00,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:34:12,340 INFO L130 PetriNetUnfolder]: 13180/30268 cut-off events. [2023-08-29 02:34:12,340 INFO L131 PetriNetUnfolder]: For 243490/244408 co-relation queries the response was YES. [2023-08-29 02:34:12,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136451 conditions, 30268 events. 13180/30268 cut-off events. For 243490/244408 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265235 event pairs, 7729 based on Foata normal form. 102/29752 useless extension candidates. Maximal degree in co-relation 136300. Up to 15935 conditions per place. [2023-08-29 02:34:13,109 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1212 selfloop transitions, 718 changer transitions 2/1986 dead transitions. [2023-08-29 02:34:13,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1986 transitions, 33775 flow [2023-08-29 02:34:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:34:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:34:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1996 transitions. [2023-08-29 02:34:13,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868292682926829 [2023-08-29 02:34:13,112 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1996 transitions. [2023-08-29 02:34:13,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1996 transitions. [2023-08-29 02:34:13,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:34:13,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1996 transitions. [2023-08-29 02:34:13,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 199.6) internal successors, (1996), 10 states have internal predecessors, (1996), 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) [2023-08-29 02:34:13,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:34:13,117 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:34:13,117 INFO L175 Difference]: Start difference. First operand has 468 places, 1785 transitions, 28138 flow. Second operand 10 states and 1996 transitions. [2023-08-29 02:34:13,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1986 transitions, 33775 flow [2023-08-29 02:34:15,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1986 transitions, 33395 flow, removed 126 selfloop flow, removed 4 redundant places. [2023-08-29 02:34:15,844 INFO L231 Difference]: Finished difference. Result has 477 places, 1804 transitions, 29769 flow [2023-08-29 02:34:15,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27758, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=701, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29769, PETRI_PLACES=477, PETRI_TRANSITIONS=1804} [2023-08-29 02:34:15,846 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 343 predicate places. [2023-08-29 02:34:15,846 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 1804 transitions, 29769 flow [2023-08-29 02:34:15,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:15,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:34:15,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:34:15,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:34:15,847 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:34:15,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:34:15,848 INFO L85 PathProgramCache]: Analyzing trace with hash -857310106, now seen corresponding path program 16 times [2023-08-29 02:34:15,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:34:15,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156851336] [2023-08-29 02:34:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:34:15,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:34:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:34:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:34:16,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:34:16,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156851336] [2023-08-29 02:34:16,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156851336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:34:16,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:34:16,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:34:16,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999178204] [2023-08-29 02:34:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:34:16,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:34:16,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:34:16,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:34:16,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:34:17,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:34:17,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 1804 transitions, 29769 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:17,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:34:17,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:34:17,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:34:29,334 INFO L130 PetriNetUnfolder]: 13209/30334 cut-off events. [2023-08-29 02:34:29,334 INFO L131 PetriNetUnfolder]: For 259561/260479 co-relation queries the response was YES. [2023-08-29 02:34:30,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138955 conditions, 30334 events. 13209/30334 cut-off events. For 259561/260479 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265771 event pairs, 7790 based on Foata normal form. 82/29799 useless extension candidates. Maximal degree in co-relation 138800. Up to 16173 conditions per place. [2023-08-29 02:34:30,201 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1194 selfloop transitions, 706 changer transitions 2/1956 dead transitions. [2023-08-29 02:34:30,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1956 transitions, 34891 flow [2023-08-29 02:34:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:34:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:34:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2113 transitions. [2023-08-29 02:34:30,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46851441241685143 [2023-08-29 02:34:30,203 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2113 transitions. [2023-08-29 02:34:30,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2113 transitions. [2023-08-29 02:34:30,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:34:30,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2113 transitions. [2023-08-29 02:34:30,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 192.0909090909091) internal successors, (2113), 11 states have internal predecessors, (2113), 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) [2023-08-29 02:34:30,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 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) [2023-08-29 02:34:30,209 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 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) [2023-08-29 02:34:30,209 INFO L175 Difference]: Start difference. First operand has 477 places, 1804 transitions, 29769 flow. Second operand 11 states and 2113 transitions. [2023-08-29 02:34:30,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1956 transitions, 34891 flow [2023-08-29 02:34:33,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 1956 transitions, 33868 flow, removed 149 selfloop flow, removed 4 redundant places. [2023-08-29 02:34:33,501 INFO L231 Difference]: Finished difference. Result has 489 places, 1821 transitions, 30737 flow [2023-08-29 02:34:33,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=28763, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=691, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30737, PETRI_PLACES=489, PETRI_TRANSITIONS=1821} [2023-08-29 02:34:33,503 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 355 predicate places. [2023-08-29 02:34:33,503 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 1821 transitions, 30737 flow [2023-08-29 02:34:33,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:33,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:34:33,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:34:33,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:34:33,504 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:34:33,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:34:33,505 INFO L85 PathProgramCache]: Analyzing trace with hash -520373896, now seen corresponding path program 17 times [2023-08-29 02:34:33,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:34:33,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101224425] [2023-08-29 02:34:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:34:33,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:34:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:34:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:34:33,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:34:33,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101224425] [2023-08-29 02:34:33,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101224425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:34:33,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:34:33,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:34:33,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264667550] [2023-08-29 02:34:33,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:34:33,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:34:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:34:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:34:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:34:34,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:34:34,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 1821 transitions, 30737 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:34,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:34:34,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:34:34,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:34:47,134 INFO L130 PetriNetUnfolder]: 13192/30289 cut-off events. [2023-08-29 02:34:47,134 INFO L131 PetriNetUnfolder]: For 263816/264731 co-relation queries the response was YES. [2023-08-29 02:34:47,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139421 conditions, 30289 events. 13192/30289 cut-off events. For 263816/264731 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265297 event pairs, 7663 based on Foata normal form. 82/29754 useless extension candidates. Maximal degree in co-relation 139260. Up to 16062 conditions per place. [2023-08-29 02:34:47,915 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1225 selfloop transitions, 713 changer transitions 2/1994 dead transitions. [2023-08-29 02:34:47,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1994 transitions, 36164 flow [2023-08-29 02:34:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:34:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:34:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1959 transitions. [2023-08-29 02:34:47,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47780487804878047 [2023-08-29 02:34:47,918 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1959 transitions. [2023-08-29 02:34:47,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1959 transitions. [2023-08-29 02:34:47,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:34:47,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1959 transitions. [2023-08-29 02:34:47,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 195.9) internal successors, (1959), 10 states have internal predecessors, (1959), 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) [2023-08-29 02:34:47,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:34:47,923 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-29 02:34:47,924 INFO L175 Difference]: Start difference. First operand has 489 places, 1821 transitions, 30737 flow. Second operand 10 states and 1959 transitions. [2023-08-29 02:34:47,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1994 transitions, 36164 flow [2023-08-29 02:34:50,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 1994 transitions, 35123 flow, removed 170 selfloop flow, removed 4 redundant places. [2023-08-29 02:34:51,025 INFO L231 Difference]: Finished difference. Result has 498 places, 1840 transitions, 31789 flow [2023-08-29 02:34:51,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=29738, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=695, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31789, PETRI_PLACES=498, PETRI_TRANSITIONS=1840} [2023-08-29 02:34:51,026 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 364 predicate places. [2023-08-29 02:34:51,027 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 1840 transitions, 31789 flow [2023-08-29 02:34:51,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:51,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:34:51,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:34:51,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:34:51,027 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:34:51,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:34:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 902658820, now seen corresponding path program 18 times [2023-08-29 02:34:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:34:51,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294191963] [2023-08-29 02:34:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:34:51,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:34:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:34:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:34:51,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:34:51,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294191963] [2023-08-29 02:34:51,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294191963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:34:51,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:34:51,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:34:51,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654159775] [2023-08-29 02:34:51,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:34:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:34:51,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:34:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:34:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:34:52,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:34:52,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1840 transitions, 31789 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:34:52,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:34:52,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:34:52,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:35:05,553 INFO L130 PetriNetUnfolder]: 13178/30377 cut-off events. [2023-08-29 02:35:05,554 INFO L131 PetriNetUnfolder]: For 268628/269537 co-relation queries the response was YES. [2023-08-29 02:35:06,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140337 conditions, 30377 events. 13178/30377 cut-off events. For 268628/269537 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 267724 event pairs, 7082 based on Foata normal form. 96/29860 useless extension candidates. Maximal degree in co-relation 140173. Up to 16096 conditions per place. [2023-08-29 02:35:06,446 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1228 selfloop transitions, 719 changer transitions 2/2003 dead transitions. [2023-08-29 02:35:06,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 2003 transitions, 36910 flow [2023-08-29 02:35:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:35:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:35:06,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2152 transitions. [2023-08-29 02:35:06,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4771618625277162 [2023-08-29 02:35:06,448 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2152 transitions. [2023-08-29 02:35:06,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2152 transitions. [2023-08-29 02:35:06,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:35:06,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2152 transitions. [2023-08-29 02:35:06,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.63636363636363) internal successors, (2152), 11 states have internal predecessors, (2152), 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) [2023-08-29 02:35:06,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 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) [2023-08-29 02:35:06,452 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 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) [2023-08-29 02:35:06,452 INFO L175 Difference]: Start difference. First operand has 498 places, 1840 transitions, 31789 flow. Second operand 11 states and 2152 transitions. [2023-08-29 02:35:06,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 2003 transitions, 36910 flow [2023-08-29 02:35:09,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 2003 transitions, 35790 flow, removed 200 selfloop flow, removed 4 redundant places. [2023-08-29 02:35:09,747 INFO L231 Difference]: Finished difference. Result has 508 places, 1851 transitions, 32495 flow [2023-08-29 02:35:09,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=30695, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32495, PETRI_PLACES=508, PETRI_TRANSITIONS=1851} [2023-08-29 02:35:09,748 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 374 predicate places. [2023-08-29 02:35:09,748 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1851 transitions, 32495 flow [2023-08-29 02:35:09,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:35:09,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:35:09,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:35:09,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:35:09,749 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 02:35:09,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:35:09,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1479949306, now seen corresponding path program 19 times [2023-08-29 02:35:09,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:35:09,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550812642] [2023-08-29 02:35:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:35:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:35:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:35:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:35:10,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:35:10,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550812642] [2023-08-29 02:35:10,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550812642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:35:10,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:35:10,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:35:10,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236497704] [2023-08-29 02:35:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:35:10,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:35:10,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:35:10,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:35:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:35:11,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-29 02:35:11,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1851 transitions, 32495 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 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) [2023-08-29 02:35:11,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:35:11,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-29 02:35:11,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:35:27,402 INFO L130 PetriNetUnfolder]: 15670/36102 cut-off events. [2023-08-29 02:35:27,402 INFO L131 PetriNetUnfolder]: For 352860/353803 co-relation queries the response was YES. [2023-08-29 02:35:28,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168909 conditions, 36102 events. 15670/36102 cut-off events. For 352860/353803 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 329746 event pairs, 5822 based on Foata normal form. 54/35442 useless extension candidates. Maximal degree in co-relation 168741. Up to 10279 conditions per place. [2023-08-29 02:35:28,629 INFO L137 encePairwiseOnDemand]: 379/410 looper letters, 2442 selfloop transitions, 155 changer transitions 0/2651 dead transitions. [2023-08-29 02:35:28,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2651 transitions, 47019 flow [2023-08-29 02:35:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:35:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:35:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2653 transitions. [2023-08-29 02:35:28,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392276422764227 [2023-08-29 02:35:28,633 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2653 transitions. [2023-08-29 02:35:28,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2653 transitions. [2023-08-29 02:35:28,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:35:28,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2653 transitions. [2023-08-29 02:35:28,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 221.08333333333334) internal successors, (2653), 12 states have internal predecessors, (2653), 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) [2023-08-29 02:35:28,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:35:28,639 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-29 02:35:28,639 INFO L175 Difference]: Start difference. First operand has 508 places, 1851 transitions, 32495 flow. Second operand 12 states and 2653 transitions. [2023-08-29 02:35:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2651 transitions, 47019 flow