./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.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/06-symbeq_13-equ_proc_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --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 02:08:36,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:08:36,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:08:36,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:08:36,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:08:36,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:08:36,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:08:36,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:08:36,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:08:36,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:08:36,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:08:36,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:08:36,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:08:36,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:08:36,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:08:36,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:08:36,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:08:36,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:08:36,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:08:36,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:08:36,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:08:36,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:08:36,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:08:36,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:08:36,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:08:36,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:08:36,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:08:36,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:08:36,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:08:36,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:08:36,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:08:36,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:08:36,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:08:36,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:08:36,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:08:36,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:08:36,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:08:36,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:08:36,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:08:36,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:08:36,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:08:36,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:08:36,516 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:08:36,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:08:36,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:08:36,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:08:36,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:08:36,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:08:36,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:08:36,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:08:36,519 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:08:36,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:08:36,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:08:36,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:08:36,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:36,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:08:36,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:08:36,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:08:36,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:08:36,523 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:08:36,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:08:36,523 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:08:36,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:08:36,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:08:36,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:08:36,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:08:36,767 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:08:36,768 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:08:36,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-29 02:08:37,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:08:37,917 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:08:37,918 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-29 02:08:37,928 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54843c98d/c29fad34aef84a568f09f442391796cd/FLAG0814a7b37 [2023-08-29 02:08:37,944 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54843c98d/c29fad34aef84a568f09f442391796cd [2023-08-29 02:08:37,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:08:37,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:08:37,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:37,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:08:37,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:08:37,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:37" (1/1) ... [2023-08-29 02:08:37,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343421e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:37, skipping insertion in model container [2023-08-29 02:08:37,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:08:37" (1/1) ... [2023-08-29 02:08:37,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:08:37,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:08:38,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:38,250 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:08:38,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:08:38,354 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:08:38,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38 WrapperNode [2023-08-29 02:08:38,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:08:38,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:38,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:08:38,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:08:38,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,404 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-29 02:08:38,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:08:38,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:08:38,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:08:38,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:08:38,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,445 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:08:38,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:08:38,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:08:38,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:08:38,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (1/1) ... [2023-08-29 02:08:38,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:08:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:38,490 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 02:08:38,509 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 02:08:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:08:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:08:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:08:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:08:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:08:38,524 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 02:08:38,647 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:08:38,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:08:38,799 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:08:38,804 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:08:38,804 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:08:38,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:38 BoogieIcfgContainer [2023-08-29 02:08:38,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:08:38,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:08:38,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:08:38,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:08:38,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:08:37" (1/3) ... [2023-08-29 02:08:38,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d038ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:38, skipping insertion in model container [2023-08-29 02:08:38,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:08:38" (2/3) ... [2023-08-29 02:08:38,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d038ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:08:38, skipping insertion in model container [2023-08-29 02:08:38,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:38" (3/3) ... [2023-08-29 02:08:38,810 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-08-29 02:08:38,815 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:08:38,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:08:38,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 02:08:38,821 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:08:38,887 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:08:38,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-29 02:08:38,961 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-29 02:08:38,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:38,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-29 02:08:38,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-29 02:08:38,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-08-29 02:08:38,971 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:08:38,984 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-29 02:08:38,989 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-29 02:08:38,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2023-08-29 02:08:39,012 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-29 02:08:39,012 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:39,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-29 02:08:39,013 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2023-08-29 02:08:41,595 INFO L134 LiptonReduction]: Checked pairs total: 2759 [2023-08-29 02:08:41,596 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-29 02:08:41,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:08:41,608 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;@3b47e971, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:08:41,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 02:08:41,611 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 02:08:41,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:41,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:41,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:41,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:41,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:41,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1761623214, now seen corresponding path program 1 times [2023-08-29 02:08:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:41,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835517169] [2023-08-29 02:08:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:42,105 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 02:08:42,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:42,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835517169] [2023-08-29 02:08:42,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835517169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:42,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:42,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662637718] [2023-08-29 02:08:42,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:42,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:42,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:42,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:42,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:42,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 137 [2023-08-29 02:08:42,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 02:08:42,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:42,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 137 [2023-08-29 02:08:42,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:42,380 INFO L130 PetriNetUnfolder]: 89/209 cut-off events. [2023-08-29 02:08:42,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:08:42,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 209 events. 89/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 782 event pairs, 34 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 406. Up to 150 conditions per place. [2023-08-29 02:08:42,384 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 26 selfloop transitions, 21 changer transitions 8/56 dead transitions. [2023-08-29 02:08:42,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 56 transitions, 225 flow [2023-08-29 02:08:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:42,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-08-29 02:08:42,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425790754257908 [2023-08-29 02:08:42,395 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-08-29 02:08:42,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-08-29 02:08:42,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:42,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-08-29 02:08:42,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 02:08:42,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 02:08:42,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 02:08:42,405 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 446 transitions. [2023-08-29 02:08:42,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 56 transitions, 225 flow [2023-08-29 02:08:42,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 56 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:42,414 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-08-29 02:08:42,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-08-29 02:08:42,417 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-08-29 02:08:42,417 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-08-29 02:08:42,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 02:08:42,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:42,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:42,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:08:42,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:42,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1579949932, now seen corresponding path program 1 times [2023-08-29 02:08:42,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:42,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615544257] [2023-08-29 02:08:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:42,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:42,579 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 02:08:42,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:42,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615544257] [2023-08-29 02:08:42,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615544257] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:42,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:42,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:08:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750287235] [2023-08-29 02:08:42,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:42,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:08:42,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:42,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:08:42,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:08:42,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 137 [2023-08-29 02:08:42,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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 02:08:42,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:42,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 137 [2023-08-29 02:08:42,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:42,721 INFO L130 PetriNetUnfolder]: 112/256 cut-off events. [2023-08-29 02:08:42,721 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2023-08-29 02:08:42,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 256 events. 112/256 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1013 event pairs, 33 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 721. Up to 200 conditions per place. [2023-08-29 02:08:42,725 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 42 selfloop transitions, 25 changer transitions 8/76 dead transitions. [2023-08-29 02:08:42,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 76 transitions, 438 flow [2023-08-29 02:08:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:08:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:08:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2023-08-29 02:08:42,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352798053527981 [2023-08-29 02:08:42,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 440 transitions. [2023-08-29 02:08:42,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 440 transitions. [2023-08-29 02:08:42,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:42,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 440 transitions. [2023-08-29 02:08:42,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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 02:08:42,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 02:08:42,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 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 02:08:42,733 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 440 transitions. [2023-08-29 02:08:42,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 76 transitions, 438 flow [2023-08-29 02:08:42,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 76 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:42,737 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-08-29 02:08:42,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-08-29 02:08:42,738 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-08-29 02:08:42,738 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-08-29 02:08:42,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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 02:08:42,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:42,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:42,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:08:42,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:42,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1462696189, now seen corresponding path program 1 times [2023-08-29 02:08:42,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324454718] [2023-08-29 02:08:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:43,204 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 02:08:43,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:43,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324454718] [2023-08-29 02:08:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324454718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:43,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:43,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192604853] [2023-08-29 02:08:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:43,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:43,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:43,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:43,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:43,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:43,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:43,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:43,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:43,699 INFO L130 PetriNetUnfolder]: 191/458 cut-off events. [2023-08-29 02:08:43,700 INFO L131 PetriNetUnfolder]: For 357/364 co-relation queries the response was YES. [2023-08-29 02:08:43,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 458 events. 191/458 cut-off events. For 357/364 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2405 event pairs, 21 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1653. Up to 223 conditions per place. [2023-08-29 02:08:43,702 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 112 selfloop transitions, 31 changer transitions 24/168 dead transitions. [2023-08-29 02:08:43,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 168 transitions, 1270 flow [2023-08-29 02:08:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:43,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 597 transitions. [2023-08-29 02:08:43,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43576642335766425 [2023-08-29 02:08:43,704 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 597 transitions. [2023-08-29 02:08:43,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 597 transitions. [2023-08-29 02:08:43,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:43,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 597 transitions. [2023-08-29 02:08:43,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 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 02:08:43,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:43,708 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:43,708 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 10 states and 597 transitions. [2023-08-29 02:08:43,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 168 transitions, 1270 flow [2023-08-29 02:08:43,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 168 transitions, 1204 flow, removed 33 selfloop flow, removed 0 redundant places. [2023-08-29 02:08:43,713 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 642 flow [2023-08-29 02:08:43,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=57, PETRI_TRANSITIONS=88} [2023-08-29 02:08:43,714 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-29 02:08:43,714 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 642 flow [2023-08-29 02:08:43,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:43,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:43,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:08:43,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:43,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash 260291229, now seen corresponding path program 2 times [2023-08-29 02:08:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:43,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511345237] [2023-08-29 02:08:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:44,165 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 02:08:44,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:44,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511345237] [2023-08-29 02:08:44,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511345237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:44,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:44,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:44,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418758930] [2023-08-29 02:08:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:44,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:44,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:44,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:44,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:44,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 88 transitions, 642 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:44,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:44,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:44,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:45,123 INFO L130 PetriNetUnfolder]: 197/456 cut-off events. [2023-08-29 02:08:45,123 INFO L131 PetriNetUnfolder]: For 749/758 co-relation queries the response was YES. [2023-08-29 02:08:45,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 456 events. 197/456 cut-off events. For 749/758 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2279 event pairs, 7 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 1929. Up to 98 conditions per place. [2023-08-29 02:08:45,126 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 79 selfloop transitions, 60 changer transitions 42/182 dead transitions. [2023-08-29 02:08:45,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 182 transitions, 1560 flow [2023-08-29 02:08:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:08:45,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:08:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 712 transitions. [2023-08-29 02:08:45,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43309002433090027 [2023-08-29 02:08:45,128 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 712 transitions. [2023-08-29 02:08:45,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 712 transitions. [2023-08-29 02:08:45,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:45,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 712 transitions. [2023-08-29 02:08:45,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.333333333333336) internal successors, (712), 12 states have internal predecessors, (712), 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 02:08:45,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:45,131 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:45,131 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 642 flow. Second operand 12 states and 712 transitions. [2023-08-29 02:08:45,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 182 transitions, 1560 flow [2023-08-29 02:08:45,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 182 transitions, 1559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:45,147 INFO L231 Difference]: Finished difference. Result has 73 places, 94 transitions, 899 flow [2023-08-29 02:08:45,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=899, PETRI_PLACES=73, PETRI_TRANSITIONS=94} [2023-08-29 02:08:45,147 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-08-29 02:08:45,148 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 94 transitions, 899 flow [2023-08-29 02:08:45,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:45,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:45,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:45,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:08:45,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:45,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1613412695, now seen corresponding path program 1 times [2023-08-29 02:08:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:45,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028793414] [2023-08-29 02:08:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:45,445 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 02:08:45,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:45,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028793414] [2023-08-29 02:08:45,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028793414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:45,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:45,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735854110] [2023-08-29 02:08:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:45,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:45,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:45,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:45,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 94 transitions, 899 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:45,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:45,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:45,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:45,813 INFO L130 PetriNetUnfolder]: 194/457 cut-off events. [2023-08-29 02:08:45,813 INFO L131 PetriNetUnfolder]: For 1632/1638 co-relation queries the response was YES. [2023-08-29 02:08:45,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 457 events. 194/457 cut-off events. For 1632/1638 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2350 event pairs, 13 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 2364. Up to 350 conditions per place. [2023-08-29 02:08:45,815 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 65 selfloop transitions, 46 changer transitions 25/137 dead transitions. [2023-08-29 02:08:45,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 137 transitions, 1564 flow [2023-08-29 02:08:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 593 transitions. [2023-08-29 02:08:45,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43284671532846714 [2023-08-29 02:08:45,817 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 593 transitions. [2023-08-29 02:08:45,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 593 transitions. [2023-08-29 02:08:45,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:45,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 593 transitions. [2023-08-29 02:08:45,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 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 02:08:45,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:45,820 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:45,820 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 899 flow. Second operand 10 states and 593 transitions. [2023-08-29 02:08:45,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 137 transitions, 1564 flow [2023-08-29 02:08:45,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 137 transitions, 1496 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-29 02:08:45,828 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 1144 flow [2023-08-29 02:08:45,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2023-08-29 02:08:45,828 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-29 02:08:45,829 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 1144 flow [2023-08-29 02:08:45,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:45,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:45,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:45,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:08:45,829 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:45,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 313398775, now seen corresponding path program 2 times [2023-08-29 02:08:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784286175] [2023-08-29 02:08:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:45,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:46,383 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 02:08:46,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784286175] [2023-08-29 02:08:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784286175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:46,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:46,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:46,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881536131] [2023-08-29 02:08:46,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:46,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:46,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:46,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:46,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:46,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:46,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:46,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:46,804 INFO L130 PetriNetUnfolder]: 188/454 cut-off events. [2023-08-29 02:08:46,805 INFO L131 PetriNetUnfolder]: For 1960/1966 co-relation queries the response was YES. [2023-08-29 02:08:46,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 454 events. 188/454 cut-off events. For 1960/1966 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2312 event pairs, 27 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 2553. Up to 292 conditions per place. [2023-08-29 02:08:46,808 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 55 selfloop transitions, 57 changer transitions 29/142 dead transitions. [2023-08-29 02:08:46,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 142 transitions, 1760 flow [2023-08-29 02:08:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 649 transitions. [2023-08-29 02:08:46,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306569343065693 [2023-08-29 02:08:46,810 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 649 transitions. [2023-08-29 02:08:46,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 649 transitions. [2023-08-29 02:08:46,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:46,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 649 transitions. [2023-08-29 02:08:46,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.0) internal successors, (649), 11 states have internal predecessors, (649), 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 02:08:46,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 02:08:46,813 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 02:08:46,813 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 1144 flow. Second operand 11 states and 649 transitions. [2023-08-29 02:08:46,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 142 transitions, 1760 flow [2023-08-29 02:08:46,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 142 transitions, 1738 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-29 02:08:46,823 INFO L231 Difference]: Finished difference. Result has 87 places, 102 transitions, 1266 flow [2023-08-29 02:08:46,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1266, PETRI_PLACES=87, PETRI_TRANSITIONS=102} [2023-08-29 02:08:46,824 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-08-29 02:08:46,824 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 102 transitions, 1266 flow [2023-08-29 02:08:46,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:46,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:46,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:46,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:08:46,825 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:46,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1693801217, now seen corresponding path program 3 times [2023-08-29 02:08:46,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:46,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652733706] [2023-08-29 02:08:46,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:46,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:47,104 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 02:08:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652733706] [2023-08-29 02:08:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652733706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:47,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:47,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426019071] [2023-08-29 02:08:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:47,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:47,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 102 transitions, 1266 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:47,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:47,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:47,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:47,717 INFO L130 PetriNetUnfolder]: 209/496 cut-off events. [2023-08-29 02:08:47,718 INFO L131 PetriNetUnfolder]: For 2420/2428 co-relation queries the response was YES. [2023-08-29 02:08:47,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3048 conditions, 496 events. 209/496 cut-off events. For 2420/2428 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2649 event pairs, 13 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 3008. Up to 178 conditions per place. [2023-08-29 02:08:47,721 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 113 selfloop transitions, 12 changer transitions 95/221 dead transitions. [2023-08-29 02:08:47,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 221 transitions, 2806 flow [2023-08-29 02:08:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:08:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:08:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 927 transitions. [2023-08-29 02:08:47,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4229014598540146 [2023-08-29 02:08:47,723 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 927 transitions. [2023-08-29 02:08:47,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 927 transitions. [2023-08-29 02:08:47,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:47,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 927 transitions. [2023-08-29 02:08:47,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 57.9375) internal successors, (927), 16 states have internal predecessors, (927), 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 02:08:47,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 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 02:08:47,728 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 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 02:08:47,729 INFO L175 Difference]: Start difference. First operand has 87 places, 102 transitions, 1266 flow. Second operand 16 states and 927 transitions. [2023-08-29 02:08:47,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 221 transitions, 2806 flow [2023-08-29 02:08:47,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 221 transitions, 2676 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-29 02:08:47,744 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 1057 flow [2023-08-29 02:08:47,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1057, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2023-08-29 02:08:47,744 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-08-29 02:08:47,744 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 1057 flow [2023-08-29 02:08:47,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:47,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:47,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:47,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:08:47,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:47,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash 356297815, now seen corresponding path program 4 times [2023-08-29 02:08:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:47,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833872414] [2023-08-29 02:08:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:48,178 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 02:08:48,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:48,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833872414] [2023-08-29 02:08:48,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833872414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:48,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:48,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:48,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235371350] [2023-08-29 02:08:48,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:48,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:48,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:48,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:48,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:48,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:48,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 1057 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:48,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:48,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:48,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:49,019 INFO L130 PetriNetUnfolder]: 148/363 cut-off events. [2023-08-29 02:08:49,019 INFO L131 PetriNetUnfolder]: For 2217/2225 co-relation queries the response was YES. [2023-08-29 02:08:49,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2343 conditions, 363 events. 148/363 cut-off events. For 2217/2225 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1744 event pairs, 23 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 2296. Up to 254 conditions per place. [2023-08-29 02:08:49,022 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 53 selfloop transitions, 50 changer transitions 16/120 dead transitions. [2023-08-29 02:08:49,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 1616 flow [2023-08-29 02:08:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:08:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:08:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 700 transitions. [2023-08-29 02:08:49,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257907542579075 [2023-08-29 02:08:49,024 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 700 transitions. [2023-08-29 02:08:49,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 700 transitions. [2023-08-29 02:08:49,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:49,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 700 transitions. [2023-08-29 02:08:49,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.333333333333336) internal successors, (700), 12 states have internal predecessors, (700), 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 02:08:49,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:49,028 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:49,028 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 1057 flow. Second operand 12 states and 700 transitions. [2023-08-29 02:08:49,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 1616 flow [2023-08-29 02:08:49,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 120 transitions, 1456 flow, removed 65 selfloop flow, removed 13 redundant places. [2023-08-29 02:08:49,038 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 1120 flow [2023-08-29 02:08:49,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1120, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2023-08-29 02:08:49,038 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-08-29 02:08:49,038 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 1120 flow [2023-08-29 02:08:49,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:49,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:49,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:49,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:08:49,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:49,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1341160227, now seen corresponding path program 3 times [2023-08-29 02:08:49,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:49,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241149125] [2023-08-29 02:08:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:49,300 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 02:08:49,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241149125] [2023-08-29 02:08:49,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241149125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:49,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:49,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:49,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069698275] [2023-08-29 02:08:49,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:49,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:49,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:49,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:49,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:49,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 1120 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:49,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:49,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:49,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:50,263 INFO L130 PetriNetUnfolder]: 172/422 cut-off events. [2023-08-29 02:08:50,263 INFO L131 PetriNetUnfolder]: For 2309/2345 co-relation queries the response was YES. [2023-08-29 02:08:50,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 422 events. 172/422 cut-off events. For 2309/2345 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2175 event pairs, 10 based on Foata normal form. 10/432 useless extension candidates. Maximal degree in co-relation 2621. Up to 130 conditions per place. [2023-08-29 02:08:50,266 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 137 selfloop transitions, 37 changer transitions 32/207 dead transitions. [2023-08-29 02:08:50,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 207 transitions, 2641 flow [2023-08-29 02:08:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:08:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:08:50,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 869 transitions. [2023-08-29 02:08:50,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42287104622871047 [2023-08-29 02:08:50,268 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 869 transitions. [2023-08-29 02:08:50,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 869 transitions. [2023-08-29 02:08:50,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:50,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 869 transitions. [2023-08-29 02:08:50,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 57.93333333333333) internal successors, (869), 15 states have internal predecessors, (869), 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 02:08:50,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:08:50,272 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:08:50,272 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 1120 flow. Second operand 15 states and 869 transitions. [2023-08-29 02:08:50,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 207 transitions, 2641 flow [2023-08-29 02:08:50,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 207 transitions, 2399 flow, removed 23 selfloop flow, removed 9 redundant places. [2023-08-29 02:08:50,284 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 1466 flow [2023-08-29 02:08:50,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1466, PETRI_PLACES=107, PETRI_TRANSITIONS=115} [2023-08-29 02:08:50,284 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 83 predicate places. [2023-08-29 02:08:50,284 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 1466 flow [2023-08-29 02:08:50,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:50,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:50,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:50,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:08:50,285 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:50,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:50,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1611913535, now seen corresponding path program 5 times [2023-08-29 02:08:50,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:50,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177819367] [2023-08-29 02:08:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:50,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:50,512 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 02:08:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:50,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177819367] [2023-08-29 02:08:50,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177819367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:50,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:50,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:50,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290580554] [2023-08-29 02:08:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:50,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:50,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:50,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:50,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 115 transitions, 1466 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:50,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:50,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:50,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:50,878 INFO L130 PetriNetUnfolder]: 194/458 cut-off events. [2023-08-29 02:08:50,879 INFO L131 PetriNetUnfolder]: For 2994/3006 co-relation queries the response was YES. [2023-08-29 02:08:50,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2958 conditions, 458 events. 194/458 cut-off events. For 2994/3006 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2345 event pairs, 25 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 2910. Up to 358 conditions per place. [2023-08-29 02:08:50,882 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 73 selfloop transitions, 48 changer transitions 35/157 dead transitions. [2023-08-29 02:08:50,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 157 transitions, 2245 flow [2023-08-29 02:08:50,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:08:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:08:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 645 transitions. [2023-08-29 02:08:50,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42800265428002654 [2023-08-29 02:08:50,883 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 645 transitions. [2023-08-29 02:08:50,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 645 transitions. [2023-08-29 02:08:50,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:50,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 645 transitions. [2023-08-29 02:08:50,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 58.63636363636363) internal successors, (645), 11 states have internal predecessors, (645), 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 02:08:50,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 02:08:50,886 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 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 02:08:50,886 INFO L175 Difference]: Start difference. First operand has 107 places, 115 transitions, 1466 flow. Second operand 11 states and 645 transitions. [2023-08-29 02:08:50,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 157 transitions, 2245 flow [2023-08-29 02:08:50,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 157 transitions, 2183 flow, removed 24 selfloop flow, removed 7 redundant places. [2023-08-29 02:08:50,900 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 1539 flow [2023-08-29 02:08:50,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1539, PETRI_PLACES=109, PETRI_TRANSITIONS=115} [2023-08-29 02:08:50,901 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 85 predicate places. [2023-08-29 02:08:50,901 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 1539 flow [2023-08-29 02:08:50,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:50,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:50,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:50,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:08:50,901 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:50,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:50,902 INFO L85 PathProgramCache]: Analyzing trace with hash 355920339, now seen corresponding path program 4 times [2023-08-29 02:08:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:50,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257343102] [2023-08-29 02:08:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:51,195 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 02:08:51,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:51,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257343102] [2023-08-29 02:08:51,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257343102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:51,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:51,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:51,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136700574] [2023-08-29 02:08:51,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:51,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:51,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:51,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:51,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:51,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 115 transitions, 1539 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:51,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:51,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:51,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:51,914 INFO L130 PetriNetUnfolder]: 180/443 cut-off events. [2023-08-29 02:08:51,915 INFO L131 PetriNetUnfolder]: For 2896/2912 co-relation queries the response was YES. [2023-08-29 02:08:51,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 443 events. 180/443 cut-off events. For 2896/2912 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2304 event pairs, 10 based on Foata normal form. 10/453 useless extension candidates. Maximal degree in co-relation 2954. Up to 153 conditions per place. [2023-08-29 02:08:51,918 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 97 selfloop transitions, 66 changer transitions 22/186 dead transitions. [2023-08-29 02:08:51,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 2648 flow [2023-08-29 02:08:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:08:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:08:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 703 transitions. [2023-08-29 02:08:51,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276155717761557 [2023-08-29 02:08:51,920 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 703 transitions. [2023-08-29 02:08:51,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 703 transitions. [2023-08-29 02:08:51,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:51,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 703 transitions. [2023-08-29 02:08:51,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.583333333333336) internal successors, (703), 12 states have internal predecessors, (703), 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 02:08:51,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:51,924 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 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 02:08:51,924 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 1539 flow. Second operand 12 states and 703 transitions. [2023-08-29 02:08:51,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 2648 flow [2023-08-29 02:08:51,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 186 transitions, 2450 flow, removed 17 selfloop flow, removed 10 redundant places. [2023-08-29 02:08:51,939 INFO L231 Difference]: Finished difference. Result has 113 places, 121 transitions, 1703 flow [2023-08-29 02:08:51,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1703, PETRI_PLACES=113, PETRI_TRANSITIONS=121} [2023-08-29 02:08:51,939 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 89 predicate places. [2023-08-29 02:08:51,939 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 121 transitions, 1703 flow [2023-08-29 02:08:51,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:51,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:51,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:51,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:08:51,940 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:51,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:51,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1707927225, now seen corresponding path program 6 times [2023-08-29 02:08:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:51,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181779556] [2023-08-29 02:08:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:51,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:52,247 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 02:08:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181779556] [2023-08-29 02:08:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181779556] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:52,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:52,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:52,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314915529] [2023-08-29 02:08:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:52,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:52,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:52,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:52,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 121 transitions, 1703 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:52,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:52,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:52,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:52,557 INFO L130 PetriNetUnfolder]: 193/466 cut-off events. [2023-08-29 02:08:52,557 INFO L131 PetriNetUnfolder]: For 3863/3875 co-relation queries the response was YES. [2023-08-29 02:08:52,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 466 events. 193/466 cut-off events. For 3863/3875 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2422 event pairs, 28 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 3203. Up to 333 conditions per place. [2023-08-29 02:08:52,561 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 69 selfloop transitions, 66 changer transitions 14/150 dead transitions. [2023-08-29 02:08:52,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 2356 flow [2023-08-29 02:08:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 582 transitions. [2023-08-29 02:08:52,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4248175182481752 [2023-08-29 02:08:52,563 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 582 transitions. [2023-08-29 02:08:52,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 582 transitions. [2023-08-29 02:08:52,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:52,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 582 transitions. [2023-08-29 02:08:52,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.2) internal successors, (582), 10 states have internal predecessors, (582), 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 02:08:52,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:52,567 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:52,567 INFO L175 Difference]: Start difference. First operand has 113 places, 121 transitions, 1703 flow. Second operand 10 states and 582 transitions. [2023-08-29 02:08:52,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 2356 flow [2023-08-29 02:08:52,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 150 transitions, 2212 flow, removed 9 selfloop flow, removed 8 redundant places. [2023-08-29 02:08:52,583 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 1884 flow [2023-08-29 02:08:52,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1884, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-08-29 02:08:52,584 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 94 predicate places. [2023-08-29 02:08:52,584 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 1884 flow [2023-08-29 02:08:52,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:52,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:52,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:52,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:08:52,585 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:52,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:52,586 INFO L85 PathProgramCache]: Analyzing trace with hash 421187283, now seen corresponding path program 5 times [2023-08-29 02:08:52,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:52,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777616057] [2023-08-29 02:08:52,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:52,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:52,840 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 02:08:52,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:52,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777616057] [2023-08-29 02:08:52,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777616057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:52,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:52,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:52,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497637404] [2023-08-29 02:08:52,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:52,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:53,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:53,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 1884 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:53,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:53,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:53,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:53,493 INFO L130 PetriNetUnfolder]: 201/495 cut-off events. [2023-08-29 02:08:53,493 INFO L131 PetriNetUnfolder]: For 4391/4409 co-relation queries the response was YES. [2023-08-29 02:08:53,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 495 events. 201/495 cut-off events. For 4391/4409 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2667 event pairs, 19 based on Foata normal form. 10/505 useless extension candidates. Maximal degree in co-relation 3514. Up to 181 conditions per place. [2023-08-29 02:08:53,496 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 125 selfloop transitions, 54 changer transitions 28/208 dead transitions. [2023-08-29 02:08:53,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 208 transitions, 3198 flow [2023-08-29 02:08:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:08:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:08:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 805 transitions. [2023-08-29 02:08:53,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197080291970803 [2023-08-29 02:08:53,498 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 805 transitions. [2023-08-29 02:08:53,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 805 transitions. [2023-08-29 02:08:53,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:53,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 805 transitions. [2023-08-29 02:08:53,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.5) internal successors, (805), 14 states have internal predecessors, (805), 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 02:08:53,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 02:08:53,502 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 02:08:53,502 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 1884 flow. Second operand 14 states and 805 transitions. [2023-08-29 02:08:53,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 208 transitions, 3198 flow [2023-08-29 02:08:53,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 208 transitions, 3072 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-29 02:08:53,520 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 2230 flow [2023-08-29 02:08:53,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2230, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2023-08-29 02:08:53,521 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-29 02:08:53,521 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 2230 flow [2023-08-29 02:08:53,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:53,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:53,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:53,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:08:53,522 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:53,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:53,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1687260111, now seen corresponding path program 7 times [2023-08-29 02:08:53,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928434735] [2023-08-29 02:08:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:53,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:53,843 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 02:08:53,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:53,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928434735] [2023-08-29 02:08:53,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928434735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:53,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:53,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:53,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620077193] [2023-08-29 02:08:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:53,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:53,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:53,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:54,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:54,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 2230 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:54,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:54,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:54,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:54,247 INFO L130 PetriNetUnfolder]: 273/637 cut-off events. [2023-08-29 02:08:54,247 INFO L131 PetriNetUnfolder]: For 5909/5921 co-relation queries the response was YES. [2023-08-29 02:08:54,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4523 conditions, 637 events. 273/637 cut-off events. For 5909/5921 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3624 event pairs, 33 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 4463. Up to 424 conditions per place. [2023-08-29 02:08:54,251 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 106 selfloop transitions, 57 changer transitions 57/221 dead transitions. [2023-08-29 02:08:54,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 221 transitions, 3574 flow [2023-08-29 02:08:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-29 02:08:54,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-29 02:08:54,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-29 02:08:54,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-29 02:08:54,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:54,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-29 02:08:54,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.4) internal successors, (594), 10 states have internal predecessors, (594), 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 02:08:54,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:54,256 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:54,256 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 2230 flow. Second operand 10 states and 594 transitions. [2023-08-29 02:08:54,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 221 transitions, 3574 flow [2023-08-29 02:08:54,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 221 transitions, 3340 flow, removed 34 selfloop flow, removed 10 redundant places. [2023-08-29 02:08:54,281 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 2246 flow [2023-08-29 02:08:54,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2045, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2246, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2023-08-29 02:08:54,282 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-29 02:08:54,283 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 2246 flow [2023-08-29 02:08:54,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:54,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:54,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:54,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:08:54,283 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:54,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1564545845, now seen corresponding path program 8 times [2023-08-29 02:08:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:54,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671091507] [2023-08-29 02:08:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:54,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:54,490 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 02:08:54,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:54,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671091507] [2023-08-29 02:08:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671091507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:54,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:54,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971135881] [2023-08-29 02:08:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:54,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:54,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:54,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:54,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 2246 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:54,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:54,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:54,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:54,968 INFO L130 PetriNetUnfolder]: 216/531 cut-off events. [2023-08-29 02:08:54,968 INFO L131 PetriNetUnfolder]: For 5366/5375 co-relation queries the response was YES. [2023-08-29 02:08:54,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4022 conditions, 531 events. 216/531 cut-off events. For 5366/5375 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2970 event pairs, 29 based on Foata normal form. 10/541 useless extension candidates. Maximal degree in co-relation 3960. Up to 402 conditions per place. [2023-08-29 02:08:54,972 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 80 selfloop transitions, 55 changer transitions 48/184 dead transitions. [2023-08-29 02:08:54,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 184 transitions, 3142 flow [2023-08-29 02:08:54,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 588 transitions. [2023-08-29 02:08:54,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291970802919708 [2023-08-29 02:08:54,973 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 588 transitions. [2023-08-29 02:08:54,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 588 transitions. [2023-08-29 02:08:54,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:54,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 588 transitions. [2023-08-29 02:08:54,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.8) internal successors, (588), 10 states have internal predecessors, (588), 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 02:08:54,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:54,976 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:54,976 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 2246 flow. Second operand 10 states and 588 transitions. [2023-08-29 02:08:54,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 184 transitions, 3142 flow [2023-08-29 02:08:54,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 184 transitions, 3013 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-08-29 02:08:54,998 INFO L231 Difference]: Finished difference. Result has 137 places, 133 transitions, 2183 flow [2023-08-29 02:08:54,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2145, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2183, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2023-08-29 02:08:54,998 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 113 predicate places. [2023-08-29 02:08:54,998 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 2183 flow [2023-08-29 02:08:54,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:54,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:54,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:54,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:08:54,999 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:54,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1762740535, now seen corresponding path program 9 times [2023-08-29 02:08:54,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:54,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385750742] [2023-08-29 02:08:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:54,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:55,361 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 02:08:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:55,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385750742] [2023-08-29 02:08:55,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385750742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:55,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:55,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:55,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549114720] [2023-08-29 02:08:55,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:55,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:55,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:55,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:55,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:55,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:55,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 2183 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:55,588 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:55,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:55,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:55,814 INFO L130 PetriNetUnfolder]: 243/573 cut-off events. [2023-08-29 02:08:55,814 INFO L131 PetriNetUnfolder]: For 5393/5402 co-relation queries the response was YES. [2023-08-29 02:08:55,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4197 conditions, 573 events. 243/573 cut-off events. For 5393/5402 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3218 event pairs, 26 based on Foata normal form. 10/583 useless extension candidates. Maximal degree in co-relation 4135. Up to 364 conditions per place. [2023-08-29 02:08:55,818 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 90 selfloop transitions, 65 changer transitions 43/199 dead transitions. [2023-08-29 02:08:55,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 199 transitions, 3299 flow [2023-08-29 02:08:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:08:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:08:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-29 02:08:55,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-29 02:08:55,819 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-29 02:08:55,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-29 02:08:55,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:55,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-29 02:08:55,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.4) internal successors, (594), 10 states have internal predecessors, (594), 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 02:08:55,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:55,822 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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 02:08:55,822 INFO L175 Difference]: Start difference. First operand has 137 places, 133 transitions, 2183 flow. Second operand 10 states and 594 transitions. [2023-08-29 02:08:55,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 199 transitions, 3299 flow [2023-08-29 02:08:55,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 199 transitions, 2896 flow, removed 59 selfloop flow, removed 16 redundant places. [2023-08-29 02:08:55,843 INFO L231 Difference]: Finished difference. Result has 132 places, 135 transitions, 2126 flow [2023-08-29 02:08:55,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2126, PETRI_PLACES=132, PETRI_TRANSITIONS=135} [2023-08-29 02:08:55,844 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 108 predicate places. [2023-08-29 02:08:55,844 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 135 transitions, 2126 flow [2023-08-29 02:08:55,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:55,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:55,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:08:55,845 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:55,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1042069201, now seen corresponding path program 10 times [2023-08-29 02:08:55,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:55,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244436847] [2023-08-29 02:08:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:56,127 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 02:08:56,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:56,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244436847] [2023-08-29 02:08:56,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244436847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:56,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:56,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799572839] [2023-08-29 02:08:56,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:56,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:56,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:56,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:56,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:56,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:56,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 135 transitions, 2126 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:56,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:56,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:56,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:57,017 INFO L130 PetriNetUnfolder]: 233/563 cut-off events. [2023-08-29 02:08:57,017 INFO L131 PetriNetUnfolder]: For 5037/5049 co-relation queries the response was YES. [2023-08-29 02:08:57,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 563 events. 233/563 cut-off events. For 5037/5049 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3166 event pairs, 24 based on Foata normal form. 10/573 useless extension candidates. Maximal degree in co-relation 3984. Up to 281 conditions per place. [2023-08-29 02:08:57,021 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 93 selfloop transitions, 61 changer transitions 72/227 dead transitions. [2023-08-29 02:08:57,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 227 transitions, 3533 flow [2023-08-29 02:08:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:08:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:08:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 812 transitions. [2023-08-29 02:08:57,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233576642335766 [2023-08-29 02:08:57,022 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 812 transitions. [2023-08-29 02:08:57,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 812 transitions. [2023-08-29 02:08:57,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:57,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 812 transitions. [2023-08-29 02:08:57,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.0) internal successors, (812), 14 states have internal predecessors, (812), 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 02:08:57,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 02:08:57,025 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 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 02:08:57,025 INFO L175 Difference]: Start difference. First operand has 132 places, 135 transitions, 2126 flow. Second operand 14 states and 812 transitions. [2023-08-29 02:08:57,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 227 transitions, 3533 flow [2023-08-29 02:08:57,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 227 transitions, 3435 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-29 02:08:57,043 INFO L231 Difference]: Finished difference. Result has 146 places, 134 transitions, 2242 flow [2023-08-29 02:08:57,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2079, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2242, PETRI_PLACES=146, PETRI_TRANSITIONS=134} [2023-08-29 02:08:57,044 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 122 predicate places. [2023-08-29 02:08:57,044 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 134 transitions, 2242 flow [2023-08-29 02:08:57,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:57,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:57,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:57,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:08:57,044 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:57,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2032720867, now seen corresponding path program 6 times [2023-08-29 02:08:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997298239] [2023-08-29 02:08:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:57,300 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 02:08:57,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:57,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997298239] [2023-08-29 02:08:57,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997298239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:57,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:57,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:57,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093350981] [2023-08-29 02:08:57,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:57,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:57,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:57,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 134 transitions, 2242 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:57,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:57,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:57,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:57,995 INFO L130 PetriNetUnfolder]: 155/416 cut-off events. [2023-08-29 02:08:57,995 INFO L131 PetriNetUnfolder]: For 5038/5053 co-relation queries the response was YES. [2023-08-29 02:08:57,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3310 conditions, 416 events. 155/416 cut-off events. For 5038/5053 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2302 event pairs, 1 based on Foata normal form. 10/426 useless extension candidates. Maximal degree in co-relation 3245. Up to 178 conditions per place. [2023-08-29 02:08:57,999 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 108 selfloop transitions, 55 changer transitions 30/194 dead transitions. [2023-08-29 02:08:57,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 194 transitions, 3323 flow [2023-08-29 02:08:58,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:08:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:08:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 749 transitions. [2023-08-29 02:08:58,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.420550252667041 [2023-08-29 02:08:58,001 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 749 transitions. [2023-08-29 02:08:58,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 749 transitions. [2023-08-29 02:08:58,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:58,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 749 transitions. [2023-08-29 02:08:58,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 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 02:08:58,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 02:08:58,004 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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 02:08:58,004 INFO L175 Difference]: Start difference. First operand has 146 places, 134 transitions, 2242 flow. Second operand 13 states and 749 transitions. [2023-08-29 02:08:58,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 194 transitions, 3323 flow [2023-08-29 02:08:58,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 194 transitions, 3049 flow, removed 64 selfloop flow, removed 17 redundant places. [2023-08-29 02:08:58,024 INFO L231 Difference]: Finished difference. Result has 136 places, 125 transitions, 2092 flow [2023-08-29 02:08:58,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2092, PETRI_PLACES=136, PETRI_TRANSITIONS=125} [2023-08-29 02:08:58,025 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 112 predicate places. [2023-08-29 02:08:58,025 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 2092 flow [2023-08-29 02:08:58,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:58,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:58,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:58,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:08:58,026 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:58,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1688030159, now seen corresponding path program 11 times [2023-08-29 02:08:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631609004] [2023-08-29 02:08:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:58,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:58,279 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 02:08:58,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631609004] [2023-08-29 02:08:58,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631609004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:58,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:58,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:58,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459550710] [2023-08-29 02:08:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:58,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:58,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:58,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:58,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 2092 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:58,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:58,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:58,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:59,209 INFO L130 PetriNetUnfolder]: 152/396 cut-off events. [2023-08-29 02:08:59,210 INFO L131 PetriNetUnfolder]: For 4042/4042 co-relation queries the response was YES. [2023-08-29 02:08:59,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2949 conditions, 396 events. 152/396 cut-off events. For 4042/4042 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2094 event pairs, 22 based on Foata normal form. 1/397 useless extension candidates. Maximal degree in co-relation 2892. Up to 191 conditions per place. [2023-08-29 02:08:59,215 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 70 selfloop transitions, 86 changer transitions 5/161 dead transitions. [2023-08-29 02:08:59,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 161 transitions, 2715 flow [2023-08-29 02:08:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 02:08:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 02:08:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1063 transitions. [2023-08-29 02:08:59,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083749519784864 [2023-08-29 02:08:59,218 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1063 transitions. [2023-08-29 02:08:59,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1063 transitions. [2023-08-29 02:08:59,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:59,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1063 transitions. [2023-08-29 02:08:59,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 55.94736842105263) internal successors, (1063), 19 states have internal predecessors, (1063), 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 02:08:59,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 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 02:08:59,223 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 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 02:08:59,223 INFO L175 Difference]: Start difference. First operand has 136 places, 125 transitions, 2092 flow. Second operand 19 states and 1063 transitions. [2023-08-29 02:08:59,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 161 transitions, 2715 flow [2023-08-29 02:08:59,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 161 transitions, 2280 flow, removed 32 selfloop flow, removed 17 redundant places. [2023-08-29 02:08:59,238 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 2031 flow [2023-08-29 02:08:59,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1677, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2031, PETRI_PLACES=135, PETRI_TRANSITIONS=135} [2023-08-29 02:08:59,238 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-29 02:08:59,239 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 2031 flow [2023-08-29 02:08:59,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:59,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:59,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:59,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:08:59,239 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:59,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1757180025, now seen corresponding path program 12 times [2023-08-29 02:08:59,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:59,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976199528] [2023-08-29 02:08:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:59,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:59,542 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 02:08:59,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:59,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976199528] [2023-08-29 02:08:59,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976199528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:08:59,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:08:59,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:08:59,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808589236] [2023-08-29 02:08:59,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:08:59,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:08:59,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:59,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:08:59,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:08:59,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:08:59,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 135 transitions, 2031 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:59,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:59,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:08:59,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:59,935 INFO L130 PetriNetUnfolder]: 134/354 cut-off events. [2023-08-29 02:08:59,935 INFO L131 PetriNetUnfolder]: For 2684/2684 co-relation queries the response was YES. [2023-08-29 02:08:59,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 354 events. 134/354 cut-off events. For 2684/2684 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1834 event pairs, 12 based on Foata normal form. 20/374 useless extension candidates. Maximal degree in co-relation 2492. Up to 210 conditions per place. [2023-08-29 02:08:59,937 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 54 selfloop transitions, 50 changer transitions 63/167 dead transitions. [2023-08-29 02:08:59,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 167 transitions, 2646 flow [2023-08-29 02:08:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:08:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:08:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 852 transitions. [2023-08-29 02:08:59,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4145985401459854 [2023-08-29 02:08:59,938 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 852 transitions. [2023-08-29 02:08:59,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 852 transitions. [2023-08-29 02:08:59,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:59,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 852 transitions. [2023-08-29 02:08:59,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 56.8) internal successors, (852), 15 states have internal predecessors, (852), 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 02:08:59,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:08:59,941 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:08:59,941 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 2031 flow. Second operand 15 states and 852 transitions. [2023-08-29 02:08:59,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 167 transitions, 2646 flow [2023-08-29 02:08:59,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 167 transitions, 2224 flow, removed 41 selfloop flow, removed 17 redundant places. [2023-08-29 02:08:59,952 INFO L231 Difference]: Finished difference. Result has 134 places, 100 transitions, 1353 flow [2023-08-29 02:08:59,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1645, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1353, PETRI_PLACES=134, PETRI_TRANSITIONS=100} [2023-08-29 02:08:59,952 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-29 02:08:59,952 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 100 transitions, 1353 flow [2023-08-29 02:08:59,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:08:59,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:59,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:59,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:08:59,953 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 02:08:59,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:59,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1700542379, now seen corresponding path program 13 times [2023-08-29 02:08:59,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:59,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64042170] [2023-08-29 02:08:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:59,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:00,155 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 02:09:00,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:00,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64042170] [2023-08-29 02:09:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64042170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:00,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:09:00,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479607260] [2023-08-29 02:09:00,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:00,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:09:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:09:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:09:00,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 02:09:00,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 100 transitions, 1353 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:09:00,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:00,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 02:09:00,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:00,633 INFO L130 PetriNetUnfolder]: 93/235 cut-off events. [2023-08-29 02:09:00,634 INFO L131 PetriNetUnfolder]: For 1346/1346 co-relation queries the response was YES. [2023-08-29 02:09:00,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 235 events. 93/235 cut-off events. For 1346/1346 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1056 event pairs, 8 based on Foata normal form. 16/251 useless extension candidates. Maximal degree in co-relation 1627. Up to 69 conditions per place. [2023-08-29 02:09:00,635 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-08-29 02:09:00,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 150 transitions, 2101 flow [2023-08-29 02:09:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:09:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:09:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 829 transitions. [2023-08-29 02:09:00,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40340632603406323 [2023-08-29 02:09:00,636 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 829 transitions. [2023-08-29 02:09:00,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 829 transitions. [2023-08-29 02:09:00,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:00,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 829 transitions. [2023-08-29 02:09:00,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.266666666666666) internal successors, (829), 15 states have internal predecessors, (829), 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 02:09:00,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:09:00,653 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 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 02:09:00,654 INFO L175 Difference]: Start difference. First operand has 134 places, 100 transitions, 1353 flow. Second operand 15 states and 829 transitions. [2023-08-29 02:09:00,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 150 transitions, 2101 flow [2023-08-29 02:09:00,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 150 transitions, 1665 flow, removed 19 selfloop flow, removed 27 redundant places. [2023-08-29 02:09:00,661 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2023-08-29 02:09:00,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0} [2023-08-29 02:09:00,662 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2023-08-29 02:09:00,662 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2023-08-29 02:09:00,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 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 02:09:00,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-29 02:09:00,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-29 02:09:00,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 02:09:00,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 02:09:00,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:09:00,673 INFO L445 BasicCegarLoop]: Path program histogram: [13, 6, 1, 1] [2023-08-29 02:09:00,677 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:09:00,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:09:00,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:09:00 BasicIcfg [2023-08-29 02:09:00,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:09:00,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:09:00,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:09:00,680 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:09:00,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:08:38" (3/4) ... [2023-08-29 02:09:00,682 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 02:09:00,685 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 02:09:00,689 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-29 02:09:00,689 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 02:09:00,689 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 02:09:00,716 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 02:09:00,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:09:00,717 INFO L158 Benchmark]: Toolchain (without parser) took 22769.67ms. Allocated memory was 73.4MB in the beginning and 337.6MB in the end (delta: 264.2MB). Free memory was 49.0MB in the beginning and 171.6MB in the end (delta: -122.7MB). Peak memory consumption was 144.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,717 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:09:00,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.59ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 48.6MB in the beginning and 56.4MB in the end (delta: -7.7MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.40ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 54.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,719 INFO L158 Benchmark]: Boogie Preprocessor took 46.82ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 52.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,719 INFO L158 Benchmark]: RCFGBuilder took 351.62ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 62.8MB in the end (delta: -10.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,720 INFO L158 Benchmark]: TraceAbstraction took 21873.49ms. Allocated memory was 90.2MB in the beginning and 337.6MB in the end (delta: 247.5MB). Free memory was 62.1MB in the beginning and 174.8MB in the end (delta: -112.7MB). Peak memory consumption was 136.6MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,720 INFO L158 Benchmark]: Witness Printer took 36.04ms. Allocated memory is still 337.6MB. Free memory was 174.8MB in the beginning and 171.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:00,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.59ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 48.6MB in the beginning and 56.4MB in the end (delta: -7.7MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.40ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 54.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.82ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 52.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.62ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 62.8MB in the end (delta: -10.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21873.49ms. Allocated memory was 90.2MB in the beginning and 337.6MB in the end (delta: 247.5MB). Free memory was 62.1MB in the beginning and 174.8MB in the end (delta: -112.7MB). Peak memory consumption was 136.6MB. Max. memory is 16.1GB. * Witness Printer took 36.04ms. Allocated memory is still 337.6MB. Free memory was 174.8MB in the beginning and 171.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 81 PlacesBefore, 24 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 956, independent: 716, independent conditional: 0, independent unconditional: 716, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 312, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 956, independent: 430, independent conditional: 0, independent unconditional: 430, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.8s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4521 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3827 mSDsluCounter, 1393 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1345 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13139 IncrementalHoareTripleChecker+Invalid, 13875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 48 mSDtfsCounter, 13139 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2246occurred in iteration=14, InterpolantAutomatonStates: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 5904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 02:09:00,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE