./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:40:23,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:40:23,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:40:23,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:40:23,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:40:23,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:40:23,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:40:23,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:40:23,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:40:23,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:40:23,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:40:23,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:40:23,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:40:23,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:40:23,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:40:23,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:40:23,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:40:23,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:40:23,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:40:23,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:40:23,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:40:23,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:40:23,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:40:23,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:40:23,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:40:23,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:40:23,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:40:23,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:40:23,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:40:23,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:40:23,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:40:23,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:40:23,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:40:23,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:40:23,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:40:23,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:40:23,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:40:23,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:40:23,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:40:23,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:40:23,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:40:23,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:40:23,520 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:40:23,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:40:23,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:40:23,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:40:23,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:40:23,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:40:23,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:40:23,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:40:23,523 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:40:23,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:40:23,524 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:40:23,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:40:23,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:40:23,525 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:40:23,526 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:40:23,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:40:23,526 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:40:23,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:40:23,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:40:23,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:40:23,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:40:23,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:40:23,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:40:23,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:40:23,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:40:23,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:40:23,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:40:23,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:40:23,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:40:23,528 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:40:23,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:40:23,529 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:40:23,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:40:23,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:40:23,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:40:23,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:40:23,851 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:40:23,851 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:40:23,852 INFO L432 ainManager$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 17:40:24,960 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:40:25,216 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:40:25,216 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-29 17:40:25,237 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e3f0946/f5ab67fbfb5e462a913e2723454eaba8/FLAG9f8598adc [2023-08-29 17:40:25,252 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e3f0946/f5ab67fbfb5e462a913e2723454eaba8 [2023-08-29 17:40:25,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:40:25,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:40:25,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:40:25,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:40:25,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:40:25,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6051d644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25, skipping insertion in model container [2023-08-29 17:40:25,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:40:25,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:40:25,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:40:25,667 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:40:25,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:40:25,795 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:40:25,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25 WrapperNode [2023-08-29 17:40:25,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:40:25,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:40:25,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:40:25,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:40:25,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,860 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-29 17:40:25,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:40:25,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:40:25,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:40:25,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:40:25,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:40:25,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:40:25,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:40:25,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:40:25,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (1/1) ... [2023-08-29 17:40:25,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:40:25,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:40:25,922 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 17:40:25,948 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 17:40:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:40:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:40:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:40:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:40:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:40:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:40:25,966 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:40:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:40:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:40:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:40:25,968 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 17:40:26,132 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:40:26,143 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:40:26,394 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:40:26,400 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:40:26,402 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:40:26,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:26 BoogieIcfgContainer [2023-08-29 17:40:26,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:40:26,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:40:26,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:40:26,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:40:26,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:40:25" (1/3) ... [2023-08-29 17:40:26,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acae991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:40:26, skipping insertion in model container [2023-08-29 17:40:26,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:40:25" (2/3) ... [2023-08-29 17:40:26,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acae991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:40:26, skipping insertion in model container [2023-08-29 17:40:26,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:26" (3/3) ... [2023-08-29 17:40:26,413 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-08-29 17:40:26,420 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:40:26,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:40:26,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 17:40:26,429 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:40:26,509 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:40:26,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-29 17:40:26,588 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-29 17:40:26,592 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:26,596 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 17:40:26,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-29 17:40:26,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-08-29 17:40:26,605 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:40:26,624 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-29 17:40:26,629 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-29 17:40:26,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2023-08-29 17:40:26,655 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-29 17:40:26,655 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:26,656 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 17:40:26,657 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2023-08-29 17:40:29,598 INFO L134 LiptonReduction]: Checked pairs total: 2759 [2023-08-29 17:40:29,599 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-29 17:40:29,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:40:29,616 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;@6545b201, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:40:29,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 17:40:29,621 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 17:40:29,622 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:29,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:29,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:29,623 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 17:40:29,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1761623214, now seen corresponding path program 1 times [2023-08-29 17:40:29,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:29,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636340024] [2023-08-29 17:40:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:29,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:30,336 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 17:40:30,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636340024] [2023-08-29 17:40:30,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636340024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:30,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:30,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:40:30,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894112475] [2023-08-29 17:40:30,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:30,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:40:30,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:30,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:40:30,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:40:30,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 137 [2023-08-29 17:40:30,518 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 17:40:30,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:30,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 137 [2023-08-29 17:40:30,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:30,683 INFO L130 PetriNetUnfolder]: 89/209 cut-off events. [2023-08-29 17:40:30,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:40:30,686 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 17:40:30,689 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 26 selfloop transitions, 21 changer transitions 8/56 dead transitions. [2023-08-29 17:40:30,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 56 transitions, 225 flow [2023-08-29 17:40:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:40:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:40:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-08-29 17:40:30,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425790754257908 [2023-08-29 17:40:30,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-08-29 17:40:30,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-08-29 17:40:30,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:30,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-08-29 17:40:30,722 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 17:40:30,727 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 17:40:30,727 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 17:40:30,729 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 446 transitions. [2023-08-29 17:40:30,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 56 transitions, 225 flow [2023-08-29 17:40:30,732 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 17:40:30,733 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-08-29 17:40:30,735 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 17:40:30,738 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-08-29 17:40:30,739 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-08-29 17:40:30,739 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 17:40:30,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:30,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:30,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:40:30,740 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 17:40:30,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1579949932, now seen corresponding path program 1 times [2023-08-29 17:40:30,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963378600] [2023-08-29 17:40:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:30,994 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 17:40:30,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:30,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963378600] [2023-08-29 17:40:30,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963378600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:30,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:30,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:40:30,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042935770] [2023-08-29 17:40:30,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:31,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:40:31,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:31,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:40:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:40:31,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 137 [2023-08-29 17:40:31,048 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 17:40:31,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:31,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 137 [2023-08-29 17:40:31,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:31,175 INFO L130 PetriNetUnfolder]: 112/256 cut-off events. [2023-08-29 17:40:31,175 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2023-08-29 17:40:31,176 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 17:40:31,178 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 42 selfloop transitions, 25 changer transitions 8/76 dead transitions. [2023-08-29 17:40:31,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 76 transitions, 438 flow [2023-08-29 17:40:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:40:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:40:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2023-08-29 17:40:31,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352798053527981 [2023-08-29 17:40:31,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 440 transitions. [2023-08-29 17:40:31,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 440 transitions. [2023-08-29 17:40:31,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:31,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 440 transitions. [2023-08-29 17:40:31,182 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 17:40:31,183 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 17:40:31,184 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 17:40:31,184 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 440 transitions. [2023-08-29 17:40:31,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 76 transitions, 438 flow [2023-08-29 17:40:31,187 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 17:40:31,188 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-08-29 17:40:31,188 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 17:40:31,189 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-08-29 17:40:31,189 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-08-29 17:40:31,189 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 17:40:31,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:31,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:31,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:40:31,190 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 17:40:31,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1462696189, now seen corresponding path program 1 times [2023-08-29 17:40:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:31,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028104223] [2023-08-29 17:40:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:31,749 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 17:40:31,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:31,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028104223] [2023-08-29 17:40:31,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028104223] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:31,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:31,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:31,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502342803] [2023-08-29 17:40:31,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:31,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:31,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:31,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:32,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:32,086 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 17:40:32,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:32,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:32,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:32,342 INFO L130 PetriNetUnfolder]: 191/458 cut-off events. [2023-08-29 17:40:32,343 INFO L131 PetriNetUnfolder]: For 357/364 co-relation queries the response was YES. [2023-08-29 17:40:32,345 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 17:40:32,347 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 112 selfloop transitions, 31 changer transitions 24/168 dead transitions. [2023-08-29 17:40:32,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 168 transitions, 1270 flow [2023-08-29 17:40:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 597 transitions. [2023-08-29 17:40:32,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43576642335766425 [2023-08-29 17:40:32,350 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 597 transitions. [2023-08-29 17:40:32,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 597 transitions. [2023-08-29 17:40:32,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:32,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 597 transitions. [2023-08-29 17:40:32,352 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 17:40:32,354 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 17:40:32,354 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 17:40:32,355 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 10 states and 597 transitions. [2023-08-29 17:40:32,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 168 transitions, 1270 flow [2023-08-29 17:40:32,361 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 17:40:32,363 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 642 flow [2023-08-29 17:40:32,364 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 17:40:32,364 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-29 17:40:32,364 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 642 flow [2023-08-29 17:40:32,365 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 17:40:32,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:32,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:32,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:40:32,366 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 17:40:32,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:32,366 INFO L85 PathProgramCache]: Analyzing trace with hash 260291229, now seen corresponding path program 2 times [2023-08-29 17:40:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:32,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070888207] [2023-08-29 17:40:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:32,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:33,013 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 17:40:33,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070888207] [2023-08-29 17:40:33,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070888207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:33,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:33,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005852861] [2023-08-29 17:40:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:33,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:33,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:33,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:33,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:33,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:33,393 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 17:40:33,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:33,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:33,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:34,183 INFO L130 PetriNetUnfolder]: 197/456 cut-off events. [2023-08-29 17:40:34,184 INFO L131 PetriNetUnfolder]: For 749/758 co-relation queries the response was YES. [2023-08-29 17:40:34,185 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 17:40:34,188 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 79 selfloop transitions, 60 changer transitions 42/182 dead transitions. [2023-08-29 17:40:34,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 182 transitions, 1560 flow [2023-08-29 17:40:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:40:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:40:34,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 712 transitions. [2023-08-29 17:40:34,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43309002433090027 [2023-08-29 17:40:34,190 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 712 transitions. [2023-08-29 17:40:34,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 712 transitions. [2023-08-29 17:40:34,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:34,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 712 transitions. [2023-08-29 17:40:34,193 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 17:40:34,195 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 17:40:34,195 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 17:40:34,195 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 642 flow. Second operand 12 states and 712 transitions. [2023-08-29 17:40:34,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 182 transitions, 1560 flow [2023-08-29 17:40:34,223 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 17:40:34,226 INFO L231 Difference]: Finished difference. Result has 73 places, 94 transitions, 899 flow [2023-08-29 17:40:34,226 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 17:40:34,227 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-08-29 17:40:34,227 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 94 transitions, 899 flow [2023-08-29 17:40:34,227 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 17:40:34,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:34,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:34,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:40:34,228 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 17:40:34,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1613412695, now seen corresponding path program 1 times [2023-08-29 17:40:34,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:34,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043676496] [2023-08-29 17:40:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:34,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:34,651 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 17:40:34,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:34,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043676496] [2023-08-29 17:40:34,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043676496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:34,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:34,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:34,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945713410] [2023-08-29 17:40:34,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:34,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:34,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:34,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:34,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:34,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:34,852 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 17:40:34,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:34,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:34,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:35,136 INFO L130 PetriNetUnfolder]: 194/457 cut-off events. [2023-08-29 17:40:35,136 INFO L131 PetriNetUnfolder]: For 1632/1638 co-relation queries the response was YES. [2023-08-29 17:40:35,139 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 17:40:35,141 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 65 selfloop transitions, 46 changer transitions 25/137 dead transitions. [2023-08-29 17:40:35,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 137 transitions, 1564 flow [2023-08-29 17:40:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 593 transitions. [2023-08-29 17:40:35,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43284671532846714 [2023-08-29 17:40:35,144 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 593 transitions. [2023-08-29 17:40:35,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 593 transitions. [2023-08-29 17:40:35,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:35,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 593 transitions. [2023-08-29 17:40:35,146 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 17:40:35,148 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 17:40:35,148 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 17:40:35,148 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 899 flow. Second operand 10 states and 593 transitions. [2023-08-29 17:40:35,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 137 transitions, 1564 flow [2023-08-29 17:40:35,157 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 17:40:35,161 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 1144 flow [2023-08-29 17:40:35,161 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 17:40:35,163 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-29 17:40:35,163 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 1144 flow [2023-08-29 17:40:35,163 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 17:40:35,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:35,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:35,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:40:35,165 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 17:40:35,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash 313398775, now seen corresponding path program 2 times [2023-08-29 17:40:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766802705] [2023-08-29 17:40:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:35,903 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 17:40:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766802705] [2023-08-29 17:40:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766802705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:35,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:35,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815893224] [2023-08-29 17:40:35,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:35,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:36,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:36,131 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 17:40:36,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:36,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:36,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:36,459 INFO L130 PetriNetUnfolder]: 188/454 cut-off events. [2023-08-29 17:40:36,459 INFO L131 PetriNetUnfolder]: For 1960/1966 co-relation queries the response was YES. [2023-08-29 17:40:36,461 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 17:40:36,463 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 55 selfloop transitions, 57 changer transitions 29/142 dead transitions. [2023-08-29 17:40:36,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 142 transitions, 1760 flow [2023-08-29 17:40:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:40:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:40:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 649 transitions. [2023-08-29 17:40:36,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306569343065693 [2023-08-29 17:40:36,466 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 649 transitions. [2023-08-29 17:40:36,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 649 transitions. [2023-08-29 17:40:36,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:36,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 649 transitions. [2023-08-29 17:40:36,468 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 17:40:36,470 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 17:40:36,470 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 17:40:36,470 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 1144 flow. Second operand 11 states and 649 transitions. [2023-08-29 17:40:36,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 142 transitions, 1760 flow [2023-08-29 17:40:36,489 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 17:40:36,491 INFO L231 Difference]: Finished difference. Result has 87 places, 102 transitions, 1266 flow [2023-08-29 17:40:36,491 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 17:40:36,492 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-08-29 17:40:36,492 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 102 transitions, 1266 flow [2023-08-29 17:40:36,493 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 17:40:36,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:36,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:36,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:40:36,493 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 17:40:36,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1693801217, now seen corresponding path program 3 times [2023-08-29 17:40:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:36,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220219492] [2023-08-29 17:40:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:36,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:36,870 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 17:40:36,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:36,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220219492] [2023-08-29 17:40:36,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220219492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:36,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:36,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:36,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161802939] [2023-08-29 17:40:36,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:36,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:36,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:37,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:37,164 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 17:40:37,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:37,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:37,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:37,674 INFO L130 PetriNetUnfolder]: 209/496 cut-off events. [2023-08-29 17:40:37,675 INFO L131 PetriNetUnfolder]: For 2420/2428 co-relation queries the response was YES. [2023-08-29 17:40:37,677 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 17:40:37,679 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 113 selfloop transitions, 12 changer transitions 95/221 dead transitions. [2023-08-29 17:40:37,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 221 transitions, 2806 flow [2023-08-29 17:40:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:40:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:40:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 927 transitions. [2023-08-29 17:40:37,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4229014598540146 [2023-08-29 17:40:37,682 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 927 transitions. [2023-08-29 17:40:37,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 927 transitions. [2023-08-29 17:40:37,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:37,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 927 transitions. [2023-08-29 17:40:37,685 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 17:40:37,688 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 17:40:37,688 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 17:40:37,688 INFO L175 Difference]: Start difference. First operand has 87 places, 102 transitions, 1266 flow. Second operand 16 states and 927 transitions. [2023-08-29 17:40:37,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 221 transitions, 2806 flow [2023-08-29 17:40:37,703 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 17:40:37,708 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 1057 flow [2023-08-29 17:40:37,709 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 17:40:37,709 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-08-29 17:40:37,709 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 1057 flow [2023-08-29 17:40:37,710 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 17:40:37,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:37,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:37,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:40:37,711 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 17:40:37,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash 356297815, now seen corresponding path program 4 times [2023-08-29 17:40:37,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:37,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625191780] [2023-08-29 17:40:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:38,306 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 17:40:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625191780] [2023-08-29 17:40:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625191780] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:38,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:38,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393251346] [2023-08-29 17:40:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:38,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:38,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:38,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:38,703 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 17:40:38,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:38,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:38,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:39,376 INFO L130 PetriNetUnfolder]: 148/363 cut-off events. [2023-08-29 17:40:39,377 INFO L131 PetriNetUnfolder]: For 2217/2225 co-relation queries the response was YES. [2023-08-29 17:40:39,378 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 17:40:39,380 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 53 selfloop transitions, 50 changer transitions 16/120 dead transitions. [2023-08-29 17:40:39,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 1616 flow [2023-08-29 17:40:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:40:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:40:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 700 transitions. [2023-08-29 17:40:39,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257907542579075 [2023-08-29 17:40:39,384 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 700 transitions. [2023-08-29 17:40:39,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 700 transitions. [2023-08-29 17:40:39,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:39,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 700 transitions. [2023-08-29 17:40:39,386 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 17:40:39,389 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 17:40:39,389 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 17:40:39,389 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 1057 flow. Second operand 12 states and 700 transitions. [2023-08-29 17:40:39,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 1616 flow [2023-08-29 17:40:39,402 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 17:40:39,408 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 1120 flow [2023-08-29 17:40:39,408 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 17:40:39,410 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-08-29 17:40:39,410 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 1120 flow [2023-08-29 17:40:39,411 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 17:40:39,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:39,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:39,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:40:39,411 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 17:40:39,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1341160227, now seen corresponding path program 3 times [2023-08-29 17:40:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:39,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812031951] [2023-08-29 17:40:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:39,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:39,806 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 17:40:39,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:39,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812031951] [2023-08-29 17:40:39,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812031951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:39,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:39,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:39,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473260106] [2023-08-29 17:40:39,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:39,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:39,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:39,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:40,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:40,140 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 17:40:40,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:40,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:40,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:41,010 INFO L130 PetriNetUnfolder]: 172/422 cut-off events. [2023-08-29 17:40:41,010 INFO L131 PetriNetUnfolder]: For 2309/2345 co-relation queries the response was YES. [2023-08-29 17:40:41,012 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 17:40:41,014 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 137 selfloop transitions, 37 changer transitions 32/207 dead transitions. [2023-08-29 17:40:41,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 207 transitions, 2641 flow [2023-08-29 17:40:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:40:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:40:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 869 transitions. [2023-08-29 17:40:41,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42287104622871047 [2023-08-29 17:40:41,017 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 869 transitions. [2023-08-29 17:40:41,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 869 transitions. [2023-08-29 17:40:41,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:41,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 869 transitions. [2023-08-29 17:40:41,020 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 17:40:41,022 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 17:40:41,023 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 17:40:41,023 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 1120 flow. Second operand 15 states and 869 transitions. [2023-08-29 17:40:41,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 207 transitions, 2641 flow [2023-08-29 17:40:41,035 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 17:40:41,038 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 1466 flow [2023-08-29 17:40:41,038 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 17:40:41,039 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 83 predicate places. [2023-08-29 17:40:41,039 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 1466 flow [2023-08-29 17:40:41,039 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 17:40:41,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:41,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:41,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:40:41,040 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 17:40:41,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1611913535, now seen corresponding path program 5 times [2023-08-29 17:40:41,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:41,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977467905] [2023-08-29 17:40:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:41,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:41,344 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 17:40:41,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977467905] [2023-08-29 17:40:41,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977467905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:41,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:41,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:41,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569212128] [2023-08-29 17:40:41,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:41,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:41,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:41,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:41,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:41,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:41,531 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 17:40:41,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:41,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:41,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:41,791 INFO L130 PetriNetUnfolder]: 194/458 cut-off events. [2023-08-29 17:40:41,792 INFO L131 PetriNetUnfolder]: For 2994/3006 co-relation queries the response was YES. [2023-08-29 17:40:41,794 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 17:40:41,797 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 73 selfloop transitions, 48 changer transitions 35/157 dead transitions. [2023-08-29 17:40:41,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 157 transitions, 2245 flow [2023-08-29 17:40:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:40:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:40:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 645 transitions. [2023-08-29 17:40:41,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42800265428002654 [2023-08-29 17:40:41,799 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 645 transitions. [2023-08-29 17:40:41,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 645 transitions. [2023-08-29 17:40:41,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:41,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 645 transitions. [2023-08-29 17:40:41,802 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 17:40:41,804 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 17:40:41,805 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 17:40:41,805 INFO L175 Difference]: Start difference. First operand has 107 places, 115 transitions, 1466 flow. Second operand 11 states and 645 transitions. [2023-08-29 17:40:41,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 157 transitions, 2245 flow [2023-08-29 17:40:41,821 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 17:40:41,824 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 1539 flow [2023-08-29 17:40:41,825 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 17:40:41,826 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 85 predicate places. [2023-08-29 17:40:41,826 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 1539 flow [2023-08-29 17:40:41,826 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 17:40:41,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:41,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:41,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:40:41,827 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 17:40:41,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:41,827 INFO L85 PathProgramCache]: Analyzing trace with hash 355920339, now seen corresponding path program 4 times [2023-08-29 17:40:41,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:41,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915057922] [2023-08-29 17:40:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:41,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:42,223 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 17:40:42,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915057922] [2023-08-29 17:40:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915057922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:42,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:42,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639242054] [2023-08-29 17:40:42,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:42,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:42,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:42,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:42,496 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 17:40:42,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:42,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:42,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:43,059 INFO L130 PetriNetUnfolder]: 180/443 cut-off events. [2023-08-29 17:40:43,059 INFO L131 PetriNetUnfolder]: For 2896/2912 co-relation queries the response was YES. [2023-08-29 17:40:43,062 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 17:40:43,064 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 97 selfloop transitions, 66 changer transitions 22/186 dead transitions. [2023-08-29 17:40:43,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 2648 flow [2023-08-29 17:40:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:40:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:40:43,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 703 transitions. [2023-08-29 17:40:43,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276155717761557 [2023-08-29 17:40:43,067 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 703 transitions. [2023-08-29 17:40:43,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 703 transitions. [2023-08-29 17:40:43,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:43,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 703 transitions. [2023-08-29 17:40:43,069 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 17:40:43,071 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 17:40:43,072 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 17:40:43,072 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 1539 flow. Second operand 12 states and 703 transitions. [2023-08-29 17:40:43,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 2648 flow [2023-08-29 17:40:43,089 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 17:40:43,099 INFO L231 Difference]: Finished difference. Result has 113 places, 121 transitions, 1703 flow [2023-08-29 17:40:43,100 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 17:40:43,100 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 89 predicate places. [2023-08-29 17:40:43,101 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 121 transitions, 1703 flow [2023-08-29 17:40:43,101 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 17:40:43,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:43,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:43,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:40:43,102 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 17:40:43,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:43,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1707927225, now seen corresponding path program 6 times [2023-08-29 17:40:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:43,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769281696] [2023-08-29 17:40:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:43,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:43,494 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 17:40:43,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:43,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769281696] [2023-08-29 17:40:43,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769281696] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:43,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:43,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:43,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385083700] [2023-08-29 17:40:43,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:43,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:43,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:43,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:43,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:43,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:43,679 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 17:40:43,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:43,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:43,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:43,862 INFO L130 PetriNetUnfolder]: 193/466 cut-off events. [2023-08-29 17:40:43,863 INFO L131 PetriNetUnfolder]: For 3863/3875 co-relation queries the response was YES. [2023-08-29 17:40:43,865 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 17:40:43,868 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 69 selfloop transitions, 66 changer transitions 14/150 dead transitions. [2023-08-29 17:40:43,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 2356 flow [2023-08-29 17:40:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 582 transitions. [2023-08-29 17:40:43,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4248175182481752 [2023-08-29 17:40:43,870 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 582 transitions. [2023-08-29 17:40:43,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 582 transitions. [2023-08-29 17:40:43,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:43,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 582 transitions. [2023-08-29 17:40:43,872 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 17:40:43,873 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 17:40:43,874 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 17:40:43,874 INFO L175 Difference]: Start difference. First operand has 113 places, 121 transitions, 1703 flow. Second operand 10 states and 582 transitions. [2023-08-29 17:40:43,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 2356 flow [2023-08-29 17:40:43,892 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 17:40:43,895 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 1884 flow [2023-08-29 17:40:43,895 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 17:40:43,896 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 94 predicate places. [2023-08-29 17:40:43,896 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 1884 flow [2023-08-29 17:40:43,896 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 17:40:43,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:43,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:43,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:40:43,897 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 17:40:43,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:43,897 INFO L85 PathProgramCache]: Analyzing trace with hash 421187283, now seen corresponding path program 5 times [2023-08-29 17:40:43,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:43,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802281548] [2023-08-29 17:40:43,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:43,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:44,234 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 17:40:44,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:44,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802281548] [2023-08-29 17:40:44,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802281548] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:44,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:44,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:44,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300454624] [2023-08-29 17:40:44,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:44,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:44,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:44,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:44,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:44,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:44,466 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 17:40:44,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:44,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:44,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:44,963 INFO L130 PetriNetUnfolder]: 201/495 cut-off events. [2023-08-29 17:40:44,963 INFO L131 PetriNetUnfolder]: For 4391/4409 co-relation queries the response was YES. [2023-08-29 17:40:44,965 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 17:40:44,968 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 125 selfloop transitions, 54 changer transitions 28/208 dead transitions. [2023-08-29 17:40:44,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 208 transitions, 3198 flow [2023-08-29 17:40:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:40:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:40:44,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 805 transitions. [2023-08-29 17:40:44,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197080291970803 [2023-08-29 17:40:44,971 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 805 transitions. [2023-08-29 17:40:44,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 805 transitions. [2023-08-29 17:40:44,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:44,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 805 transitions. [2023-08-29 17:40:44,976 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 17:40:44,979 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 17:40:44,980 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 17:40:44,980 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 1884 flow. Second operand 14 states and 805 transitions. [2023-08-29 17:40:44,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 208 transitions, 3198 flow [2023-08-29 17:40:45,004 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 17:40:45,009 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 2230 flow [2023-08-29 17:40:45,009 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 17:40:45,010 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-29 17:40:45,010 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 2230 flow [2023-08-29 17:40:45,011 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 17:40:45,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:45,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:45,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:40:45,011 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 17:40:45,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1687260111, now seen corresponding path program 7 times [2023-08-29 17:40:45,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:45,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050769120] [2023-08-29 17:40:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:45,435 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 17:40:45,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:45,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050769120] [2023-08-29 17:40:45,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050769120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:45,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:45,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:45,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998709251] [2023-08-29 17:40:45,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:45,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:45,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:45,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:45,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:45,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:45,674 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 17:40:45,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:45,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:45,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:45,913 INFO L130 PetriNetUnfolder]: 273/637 cut-off events. [2023-08-29 17:40:45,914 INFO L131 PetriNetUnfolder]: For 5909/5921 co-relation queries the response was YES. [2023-08-29 17:40:45,918 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 17:40:45,921 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 106 selfloop transitions, 57 changer transitions 57/221 dead transitions. [2023-08-29 17:40:45,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 221 transitions, 3574 flow [2023-08-29 17:40:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-29 17:40:45,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-29 17:40:45,923 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-29 17:40:45,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-29 17:40:45,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:45,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-29 17:40:45,925 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 17:40:45,928 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 17:40:45,929 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 17:40:45,929 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 2230 flow. Second operand 10 states and 594 transitions. [2023-08-29 17:40:45,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 221 transitions, 3574 flow [2023-08-29 17:40:45,967 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 17:40:45,971 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 2246 flow [2023-08-29 17:40:45,971 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 17:40:45,972 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-29 17:40:45,972 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 2246 flow [2023-08-29 17:40:45,972 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 17:40:45,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:45,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:45,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:40:45,973 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 17:40:45,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1564545845, now seen corresponding path program 8 times [2023-08-29 17:40:45,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239049764] [2023-08-29 17:40:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:45,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:46,239 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 17:40:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239049764] [2023-08-29 17:40:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239049764] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:46,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609259548] [2023-08-29 17:40:46,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:46,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:46,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:46,539 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 17:40:46,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:46,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:46,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:46,814 INFO L130 PetriNetUnfolder]: 216/531 cut-off events. [2023-08-29 17:40:46,814 INFO L131 PetriNetUnfolder]: For 5366/5375 co-relation queries the response was YES. [2023-08-29 17:40:46,817 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 17:40:46,819 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 80 selfloop transitions, 55 changer transitions 48/184 dead transitions. [2023-08-29 17:40:46,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 184 transitions, 3142 flow [2023-08-29 17:40:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:46,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 588 transitions. [2023-08-29 17:40:46,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291970802919708 [2023-08-29 17:40:46,822 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 588 transitions. [2023-08-29 17:40:46,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 588 transitions. [2023-08-29 17:40:46,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:46,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 588 transitions. [2023-08-29 17:40:46,823 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 17:40:46,825 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 17:40:46,826 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 17:40:46,826 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 2246 flow. Second operand 10 states and 588 transitions. [2023-08-29 17:40:46,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 184 transitions, 3142 flow [2023-08-29 17:40:46,850 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 17:40:46,853 INFO L231 Difference]: Finished difference. Result has 137 places, 133 transitions, 2183 flow [2023-08-29 17:40:46,853 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 17:40:46,854 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 113 predicate places. [2023-08-29 17:40:46,854 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 2183 flow [2023-08-29 17:40:46,854 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 17:40:46,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:46,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:46,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:40:46,855 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 17:40:46,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:46,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1762740535, now seen corresponding path program 9 times [2023-08-29 17:40:46,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:46,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19207255] [2023-08-29 17:40:46,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:46,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:47,331 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 17:40:47,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:47,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19207255] [2023-08-29 17:40:47,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19207255] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:47,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:47,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:47,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748447892] [2023-08-29 17:40:47,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:47,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:47,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:47,592 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 17:40:47,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:47,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:47,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:47,845 INFO L130 PetriNetUnfolder]: 243/573 cut-off events. [2023-08-29 17:40:47,845 INFO L131 PetriNetUnfolder]: For 5393/5402 co-relation queries the response was YES. [2023-08-29 17:40:47,849 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 17:40:47,854 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 90 selfloop transitions, 65 changer transitions 43/199 dead transitions. [2023-08-29 17:40:47,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 199 transitions, 3299 flow [2023-08-29 17:40:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:40:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:40:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-29 17:40:47,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-29 17:40:47,858 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-29 17:40:47,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-29 17:40:47,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:47,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-29 17:40:47,860 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 17:40:47,862 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 17:40:47,863 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 17:40:47,863 INFO L175 Difference]: Start difference. First operand has 137 places, 133 transitions, 2183 flow. Second operand 10 states and 594 transitions. [2023-08-29 17:40:47,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 199 transitions, 3299 flow [2023-08-29 17:40:47,887 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 17:40:47,890 INFO L231 Difference]: Finished difference. Result has 132 places, 135 transitions, 2126 flow [2023-08-29 17:40:47,891 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 17:40:47,892 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 108 predicate places. [2023-08-29 17:40:47,892 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 135 transitions, 2126 flow [2023-08-29 17:40:47,892 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 17:40:47,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:47,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:47,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:40:47,894 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 17:40:47,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1042069201, now seen corresponding path program 10 times [2023-08-29 17:40:47,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:47,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815971308] [2023-08-29 17:40:47,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:48,303 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 17:40:48,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815971308] [2023-08-29 17:40:48,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815971308] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:48,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:48,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:48,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048739644] [2023-08-29 17:40:48,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:48,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:48,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:48,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:48,532 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 17:40:48,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:48,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:48,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:49,241 INFO L130 PetriNetUnfolder]: 233/563 cut-off events. [2023-08-29 17:40:49,241 INFO L131 PetriNetUnfolder]: For 5037/5049 co-relation queries the response was YES. [2023-08-29 17:40:49,243 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 17:40:49,246 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 93 selfloop transitions, 61 changer transitions 72/227 dead transitions. [2023-08-29 17:40:49,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 227 transitions, 3533 flow [2023-08-29 17:40:49,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:40:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:40:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 812 transitions. [2023-08-29 17:40:49,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233576642335766 [2023-08-29 17:40:49,248 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 812 transitions. [2023-08-29 17:40:49,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 812 transitions. [2023-08-29 17:40:49,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:49,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 812 transitions. [2023-08-29 17:40:49,250 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 17:40:49,252 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 17:40:49,253 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 17:40:49,253 INFO L175 Difference]: Start difference. First operand has 132 places, 135 transitions, 2126 flow. Second operand 14 states and 812 transitions. [2023-08-29 17:40:49,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 227 transitions, 3533 flow [2023-08-29 17:40:49,275 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 17:40:49,278 INFO L231 Difference]: Finished difference. Result has 146 places, 134 transitions, 2242 flow [2023-08-29 17:40:49,278 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 17:40:49,279 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 122 predicate places. [2023-08-29 17:40:49,279 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 134 transitions, 2242 flow [2023-08-29 17:40:49,279 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 17:40:49,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:49,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:49,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:40:49,280 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 17:40:49,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2032720867, now seen corresponding path program 6 times [2023-08-29 17:40:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867338788] [2023-08-29 17:40:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:49,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:49,622 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 17:40:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:49,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867338788] [2023-08-29 17:40:49,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867338788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:49,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:49,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:49,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770245830] [2023-08-29 17:40:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:49,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:49,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:49,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:49,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:49,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:49,915 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 17:40:49,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:49,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:49,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:50,403 INFO L130 PetriNetUnfolder]: 155/416 cut-off events. [2023-08-29 17:40:50,403 INFO L131 PetriNetUnfolder]: For 5038/5053 co-relation queries the response was YES. [2023-08-29 17:40:50,405 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 17:40:50,407 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 108 selfloop transitions, 55 changer transitions 30/194 dead transitions. [2023-08-29 17:40:50,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 194 transitions, 3323 flow [2023-08-29 17:40:50,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:40:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:40:50,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 749 transitions. [2023-08-29 17:40:50,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.420550252667041 [2023-08-29 17:40:50,410 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 749 transitions. [2023-08-29 17:40:50,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 749 transitions. [2023-08-29 17:40:50,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:50,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 749 transitions. [2023-08-29 17:40:50,412 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 17:40:50,414 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 17:40:50,415 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 17:40:50,415 INFO L175 Difference]: Start difference. First operand has 146 places, 134 transitions, 2242 flow. Second operand 13 states and 749 transitions. [2023-08-29 17:40:50,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 194 transitions, 3323 flow [2023-08-29 17:40:50,438 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 17:40:50,441 INFO L231 Difference]: Finished difference. Result has 136 places, 125 transitions, 2092 flow [2023-08-29 17:40:50,441 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 17:40:50,442 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 112 predicate places. [2023-08-29 17:40:50,442 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 2092 flow [2023-08-29 17:40:50,442 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 17:40:50,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:50,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:50,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:40:50,443 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 17:40:50,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:50,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1688030159, now seen corresponding path program 11 times [2023-08-29 17:40:50,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386652575] [2023-08-29 17:40:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:50,794 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 17:40:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386652575] [2023-08-29 17:40:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386652575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:50,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:50,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:50,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853502730] [2023-08-29 17:40:50,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:50,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:50,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:51,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:51,044 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 17:40:51,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:51,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:51,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:51,866 INFO L130 PetriNetUnfolder]: 152/396 cut-off events. [2023-08-29 17:40:51,867 INFO L131 PetriNetUnfolder]: For 4042/4042 co-relation queries the response was YES. [2023-08-29 17:40:51,868 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 17:40:51,870 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 70 selfloop transitions, 86 changer transitions 5/161 dead transitions. [2023-08-29 17:40:51,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 161 transitions, 2715 flow [2023-08-29 17:40:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 17:40:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 17:40:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1063 transitions. [2023-08-29 17:40:51,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083749519784864 [2023-08-29 17:40:51,873 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1063 transitions. [2023-08-29 17:40:51,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1063 transitions. [2023-08-29 17:40:51,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:51,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1063 transitions. [2023-08-29 17:40:51,876 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 17:40:51,879 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 17:40:51,879 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 17:40:51,879 INFO L175 Difference]: Start difference. First operand has 136 places, 125 transitions, 2092 flow. Second operand 19 states and 1063 transitions. [2023-08-29 17:40:51,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 161 transitions, 2715 flow [2023-08-29 17:40:51,896 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 17:40:51,899 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 2031 flow [2023-08-29 17:40:51,899 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 17:40:51,900 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-29 17:40:51,900 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 2031 flow [2023-08-29 17:40:51,900 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 17:40:51,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:51,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:51,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:40:51,901 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 17:40:51,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:51,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1757180025, now seen corresponding path program 12 times [2023-08-29 17:40:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:51,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253364814] [2023-08-29 17:40:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:51,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:40:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:52,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253364814] [2023-08-29 17:40:52,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253364814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:52,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:52,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:52,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203577931] [2023-08-29 17:40:52,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:52,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:52,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:52,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:52,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:52,455 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 17:40:52,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:52,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:52,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:52,700 INFO L130 PetriNetUnfolder]: 134/354 cut-off events. [2023-08-29 17:40:52,700 INFO L131 PetriNetUnfolder]: For 2684/2684 co-relation queries the response was YES. [2023-08-29 17:40:52,701 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 17:40:52,703 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 54 selfloop transitions, 50 changer transitions 63/167 dead transitions. [2023-08-29 17:40:52,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 167 transitions, 2646 flow [2023-08-29 17:40:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:40:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:40:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 852 transitions. [2023-08-29 17:40:52,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4145985401459854 [2023-08-29 17:40:52,706 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 852 transitions. [2023-08-29 17:40:52,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 852 transitions. [2023-08-29 17:40:52,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:52,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 852 transitions. [2023-08-29 17:40:52,707 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 17:40:52,709 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 17:40:52,710 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 17:40:52,710 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 2031 flow. Second operand 15 states and 852 transitions. [2023-08-29 17:40:52,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 167 transitions, 2646 flow [2023-08-29 17:40:52,722 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 17:40:52,725 INFO L231 Difference]: Finished difference. Result has 134 places, 100 transitions, 1353 flow [2023-08-29 17:40:52,725 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 17:40:52,725 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-29 17:40:52,725 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 100 transitions, 1353 flow [2023-08-29 17:40:52,726 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 17:40:52,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:40:52,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:40:52,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:40:52,726 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 17:40:52,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:40:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1700542379, now seen corresponding path program 13 times [2023-08-29 17:40:52,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:40:52,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40713471] [2023-08-29 17:40:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:40:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:40:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:40:52,986 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 17:40:52,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:40:52,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40713471] [2023-08-29 17:40:52,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40713471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:40:52,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:40:52,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:40:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135879269] [2023-08-29 17:40:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:40:52,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:40:52,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:40:52,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:40:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:40:53,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-29 17:40:53,241 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 17:40:53,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:40:53,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-29 17:40:53,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:40:53,534 INFO L130 PetriNetUnfolder]: 93/235 cut-off events. [2023-08-29 17:40:53,534 INFO L131 PetriNetUnfolder]: For 1346/1346 co-relation queries the response was YES. [2023-08-29 17:40:53,535 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 17:40:53,535 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-08-29 17:40:53,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 150 transitions, 2101 flow [2023-08-29 17:40:53,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:40:53,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:40:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 829 transitions. [2023-08-29 17:40:53,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40340632603406323 [2023-08-29 17:40:53,537 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 829 transitions. [2023-08-29 17:40:53,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 829 transitions. [2023-08-29 17:40:53,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:40:53,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 829 transitions. [2023-08-29 17:40:53,538 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 17:40:53,540 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 17:40:53,541 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 17:40:53,541 INFO L175 Difference]: Start difference. First operand has 134 places, 100 transitions, 1353 flow. Second operand 15 states and 829 transitions. [2023-08-29 17:40:53,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 150 transitions, 2101 flow [2023-08-29 17:40:53,549 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 17:40:53,550 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2023-08-29 17:40:53,550 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 17:40:53,550 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2023-08-29 17:40:53,551 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2023-08-29 17:40:53,551 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 17:40:53,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-29 17:40:53,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-29 17:40:53,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 17:40:53,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 17:40:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:40:53,558 INFO L445 BasicCegarLoop]: Path program histogram: [13, 6, 1, 1] [2023-08-29 17:40:53,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:40:53,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:40:53,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:40:53 BasicIcfg [2023-08-29 17:40:53,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:40:53,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:40:53,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:40:53,568 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:40:53,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:40:26" (3/4) ... [2023-08-29 17:40:53,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:40:53,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:40:53,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-29 17:40:53,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 17:40:53,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:40:53,613 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:40:53,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:40:53,614 INFO L158 Benchmark]: Toolchain (without parser) took 28358.94ms. Allocated memory was 77.6MB in the beginning and 216.0MB in the end (delta: 138.4MB). Free memory was 52.7MB in the beginning and 94.7MB in the end (delta: -42.0MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,614 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 33.0MB in the beginning and 33.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:40:53,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.89ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 44.7MB in the end (delta: 7.7MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.56ms. Allocated memory is still 77.6MB. Free memory was 44.7MB in the beginning and 42.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,615 INFO L158 Benchmark]: Boogie Preprocessor took 30.00ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,616 INFO L158 Benchmark]: RCFGBuilder took 513.17ms. Allocated memory is still 77.6MB. Free memory was 40.6MB in the beginning and 51.4MB in the end (delta: -10.8MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,616 INFO L158 Benchmark]: TraceAbstraction took 27160.81ms. Allocated memory was 77.6MB in the beginning and 216.0MB in the end (delta: 138.4MB). Free memory was 50.6MB in the beginning and 96.8MB in the end (delta: -46.2MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,616 INFO L158 Benchmark]: Witness Printer took 45.67ms. Allocated memory is still 216.0MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:40:53,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 33.0MB in the beginning and 33.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.89ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 44.7MB in the end (delta: 7.7MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.56ms. Allocated memory is still 77.6MB. Free memory was 44.7MB in the beginning and 42.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.00ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.17ms. Allocated memory is still 77.6MB. Free memory was 40.6MB in the beginning and 51.4MB in the end (delta: -10.8MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 27160.81ms. Allocated memory was 77.6MB in the beginning and 216.0MB in the end (delta: 138.4MB). Free memory was 50.6MB in the beginning and 96.8MB in the end (delta: -46.2MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. * Witness Printer took 45.67ms. Allocated memory is still 216.0MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). 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: 3.0s, 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: 27.0s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4521 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3827 mSDsluCounter, 1393 SdHoareTripleChecker+Invalid, 6.9s 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, 6.3s 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, 0.3s SatisfiabilityAnalysisTime, 8.5s 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 17:40:53,648 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