/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:58,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:58,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:58,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:58,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:58,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:58,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:58,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:58,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:58,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:58,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:58,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:58,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:58,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:58,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:58,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:58,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:58,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:58,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:58,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:58,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:06:58,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:58,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:58,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:58,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:58,513 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:58,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:58,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:58,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:58,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:58,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:58,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:58,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:58,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:58,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:58,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:58,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:58,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:58,732 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:58,732 INFO L432 ainManager$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 [2021-10-16 23:06:58,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd04ef30/563b640a0e4d49ec9d7a6bfc70fe1f0f/FLAG7fe8b1136 [2021-10-16 23:06:59,192 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:59,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2021-10-16 23:06:59,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd04ef30/563b640a0e4d49ec9d7a6bfc70fe1f0f/FLAG7fe8b1136 [2021-10-16 23:06:59,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dd04ef30/563b640a0e4d49ec9d7a6bfc70fe1f0f [2021-10-16 23:06:59,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:59,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:59,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:59,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:59,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:59,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d2407e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59, skipping insertion in model container [2021-10-16 23:06:59,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:59,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:59,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:59,863 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:59,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:59,918 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:59,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59 WrapperNode [2021-10-16 23:06:59,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:59,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:59,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:59,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:59,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:59,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:59,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:59,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:59,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:59,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:59,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:59,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:59,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:59,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:07:00,002 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) [2021-10-16 23:07:00,010 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 [2021-10-16 23:07:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:07:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:07:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:07:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:07:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:07:00,032 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:07:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:07:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:07:00,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:07:00,033 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:07:00,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:07:00,262 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 23:07:00,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:00 BoogieIcfgContainer [2021-10-16 23:07:00,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:07:00,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:07:00,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:07:00,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:07:00,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:59" (1/3) ... [2021-10-16 23:07:00,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c60b421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:00, skipping insertion in model container [2021-10-16 23:07:00,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (2/3) ... [2021-10-16 23:07:00,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c60b421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:00, skipping insertion in model container [2021-10-16 23:07:00,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:00" (3/3) ... [2021-10-16 23:07:00,271 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2021-10-16 23:07:00,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:07:00,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:07:00,274 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,291 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,292 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,292 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,296 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,296 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,296 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:00,301 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:07:00,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:07:00,333 INFO L339 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=false, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:07:00,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:07:00,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 76 transitions, 157 flow [2021-10-16 23:07:00,369 INFO L129 PetriNetUnfolder]: 1/75 cut-off events. [2021-10-16 23:07:00,369 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:00,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 1/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2021-10-16 23:07:00,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 76 transitions, 157 flow [2021-10-16 23:07:00,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 153 flow [2021-10-16 23:07:00,388 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-10-16 23:07:00,388 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:00,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:00,389 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:00,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1766785465, now seen corresponding path program 1 times [2021-10-16 23:07:00,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:00,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935442173] [2021-10-16 23:07:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:00,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:00,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:00,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935442173] [2021-10-16 23:07:00,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935442173] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:00,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:00,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:00,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983261377] [2021-10-16 23:07:00,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:00,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:00,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:00,687 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 76 [2021-10-16 23:07:00,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:00,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 76 [2021-10-16 23:07:00,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:00,923 INFO L129 PetriNetUnfolder]: 91/337 cut-off events. [2021-10-16 23:07:00,923 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:07:00,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 337 events. 91/337 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1417 event pairs, 32 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 501. Up to 162 conditions per place. [2021-10-16 23:07:00,928 INFO L132 encePairwiseOnDemand]: 65/76 looper letters, 30 selfloop transitions, 22 changer transitions 4/104 dead transitions. [2021-10-16 23:07:00,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 104 transitions, 323 flow [2021-10-16 23:07:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:00,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 351 transitions. [2021-10-16 23:07:00,943 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2021-10-16 23:07:00,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 351 transitions. [2021-10-16 23:07:00,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 351 transitions. [2021-10-16 23:07:00,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:00,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 351 transitions. [2021-10-16 23:07:00,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,960 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,962 INFO L186 Difference]: Start difference. First operand has 78 places, 75 transitions, 153 flow. Second operand 6 states and 351 transitions. [2021-10-16 23:07:00,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 104 transitions, 323 flow [2021-10-16 23:07:00,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 104 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:07:00,972 INFO L242 Difference]: Finished difference. Result has 87 places, 96 transitions, 302 flow [2021-10-16 23:07:00,973 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=87, PETRI_TRANSITIONS=96} [2021-10-16 23:07:00,974 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2021-10-16 23:07:00,974 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 96 transitions, 302 flow [2021-10-16 23:07:00,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,975 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:00,975 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:00,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:07:00,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:00,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:00,979 INFO L82 PathProgramCache]: Analyzing trace with hash 745087711, now seen corresponding path program 1 times [2021-10-16 23:07:00,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:00,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804700836] [2021-10-16 23:07:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:00,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:01,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:01,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:01,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804700836] [2021-10-16 23:07:01,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804700836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:01,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:01,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:01,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421555505] [2021-10-16 23:07:01,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:01,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:01,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:01,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:01,131 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 76 [2021-10-16 23:07:01,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 96 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:01,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 76 [2021-10-16 23:07:01,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:01,294 INFO L129 PetriNetUnfolder]: 124/412 cut-off events. [2021-10-16 23:07:01,294 INFO L130 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2021-10-16 23:07:01,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 412 events. 124/412 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1888 event pairs, 27 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 950. Up to 202 conditions per place. [2021-10-16 23:07:01,299 INFO L132 encePairwiseOnDemand]: 65/76 looper letters, 36 selfloop transitions, 26 changer transitions 11/132 dead transitions. [2021-10-16 23:07:01,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 132 transitions, 616 flow [2021-10-16 23:07:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:01,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 401 transitions. [2021-10-16 23:07:01,301 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8793859649122807 [2021-10-16 23:07:01,301 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 401 transitions. [2021-10-16 23:07:01,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 401 transitions. [2021-10-16 23:07:01,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:01,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 401 transitions. [2021-10-16 23:07:01,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,305 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,305 INFO L186 Difference]: Start difference. First operand has 87 places, 96 transitions, 302 flow. Second operand 6 states and 401 transitions. [2021-10-16 23:07:01,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 132 transitions, 616 flow [2021-10-16 23:07:01,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 132 transitions, 616 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:01,317 INFO L242 Difference]: Finished difference. Result has 97 places, 117 transitions, 526 flow [2021-10-16 23:07:01,317 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=97, PETRI_TRANSITIONS=117} [2021-10-16 23:07:01,318 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 19 predicate places. [2021-10-16 23:07:01,318 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 117 transitions, 526 flow [2021-10-16 23:07:01,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,318 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:01,319 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:01,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:07:01,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:01,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:01,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1264960638, now seen corresponding path program 1 times [2021-10-16 23:07:01,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:01,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257736965] [2021-10-16 23:07:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:01,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:01,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:01,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257736965] [2021-10-16 23:07:01,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257736965] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:01,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:01,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:07:01,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619539367] [2021-10-16 23:07:01,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:07:01,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:07:01,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:07:01,633 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 76 [2021-10-16 23:07:01,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 526 flow. Second operand has 7 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:01,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 76 [2021-10-16 23:07:01,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:01,756 INFO L129 PetriNetUnfolder]: 97/427 cut-off events. [2021-10-16 23:07:01,757 INFO L130 PetriNetUnfolder]: For 315/335 co-relation queries the response was YES. [2021-10-16 23:07:01,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 427 events. 97/427 cut-off events. For 315/335 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2161 event pairs, 22 based on Foata normal form. 8/430 useless extension candidates. Maximal degree in co-relation 951. Up to 154 conditions per place. [2021-10-16 23:07:01,760 INFO L132 encePairwiseOnDemand]: 69/76 looper letters, 45 selfloop transitions, 1 changer transitions 14/129 dead transitions. [2021-10-16 23:07:01,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 129 transitions, 694 flow [2021-10-16 23:07:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 335 transitions. [2021-10-16 23:07:01,762 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7346491228070176 [2021-10-16 23:07:01,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 335 transitions. [2021-10-16 23:07:01,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 335 transitions. [2021-10-16 23:07:01,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:01,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 335 transitions. [2021-10-16 23:07:01,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,764 INFO L186 Difference]: Start difference. First operand has 97 places, 117 transitions, 526 flow. Second operand 6 states and 335 transitions. [2021-10-16 23:07:01,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 129 transitions, 694 flow [2021-10-16 23:07:01,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 129 transitions, 676 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:01,774 INFO L242 Difference]: Finished difference. Result has 105 places, 115 transitions, 520 flow [2021-10-16 23:07:01,774 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=105, PETRI_TRANSITIONS=115} [2021-10-16 23:07:01,774 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 27 predicate places. [2021-10-16 23:07:01,774 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 115 transitions, 520 flow [2021-10-16 23:07:01,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,774 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:01,775 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:01,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:07:01,775 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1054889476, now seen corresponding path program 1 times [2021-10-16 23:07:01,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:01,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39632912] [2021-10-16 23:07:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:01,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:01,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:01,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39632912] [2021-10-16 23:07:01,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39632912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:01,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:01,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:01,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576873836] [2021-10-16 23:07:01,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:01,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:01,987 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:01,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 115 transitions, 520 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:01,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:01,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:01,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:02,701 INFO L129 PetriNetUnfolder]: 307/890 cut-off events. [2021-10-16 23:07:02,701 INFO L130 PetriNetUnfolder]: For 746/752 co-relation queries the response was YES. [2021-10-16 23:07:02,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2811 conditions, 890 events. 307/890 cut-off events. For 746/752 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5091 event pairs, 60 based on Foata normal form. 14/902 useless extension candidates. Maximal degree in co-relation 2788. Up to 286 conditions per place. [2021-10-16 23:07:02,707 INFO L132 encePairwiseOnDemand]: 58/76 looper letters, 132 selfloop transitions, 54 changer transitions 47/260 dead transitions. [2021-10-16 23:07:02,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 260 transitions, 1818 flow [2021-10-16 23:07:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-16 23:07:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-16 23:07:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 739 transitions. [2021-10-16 23:07:02,710 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4630325814536341 [2021-10-16 23:07:02,710 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 739 transitions. [2021-10-16 23:07:02,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 739 transitions. [2021-10-16 23:07:02,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:02,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 739 transitions. [2021-10-16 23:07:02,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 35.19047619047619) internal successors, (739), 21 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 76.0) internal successors, (1672), 22 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,714 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 76.0) internal successors, (1672), 22 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,714 INFO L186 Difference]: Start difference. First operand has 105 places, 115 transitions, 520 flow. Second operand 21 states and 739 transitions. [2021-10-16 23:07:02,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 260 transitions, 1818 flow [2021-10-16 23:07:02,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 260 transitions, 1809 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-10-16 23:07:02,722 INFO L242 Difference]: Finished difference. Result has 130 places, 148 transitions, 989 flow [2021-10-16 23:07:02,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=989, PETRI_PLACES=130, PETRI_TRANSITIONS=148} [2021-10-16 23:07:02,722 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 52 predicate places. [2021-10-16 23:07:02,723 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 148 transitions, 989 flow [2021-10-16 23:07:02,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,723 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:02,723 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:02,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:07:02,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:02,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1058604492, now seen corresponding path program 2 times [2021-10-16 23:07:02,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:02,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281294532] [2021-10-16 23:07:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:02,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:02,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:02,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281294532] [2021-10-16 23:07:02,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281294532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:02,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:02,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:02,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057536766] [2021-10-16 23:07:02,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:02,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:02,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:02,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:02,869 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:02,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 148 transitions, 989 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:02,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:02,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:03,444 INFO L129 PetriNetUnfolder]: 315/902 cut-off events. [2021-10-16 23:07:03,444 INFO L130 PetriNetUnfolder]: For 1991/1994 co-relation queries the response was YES. [2021-10-16 23:07:03,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 902 events. 315/902 cut-off events. For 1991/1994 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5190 event pairs, 19 based on Foata normal form. 15/915 useless extension candidates. Maximal degree in co-relation 3536. Up to 363 conditions per place. [2021-10-16 23:07:03,451 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 148 selfloop transitions, 42 changer transitions 32/249 dead transitions. [2021-10-16 23:07:03,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 249 transitions, 2142 flow [2021-10-16 23:07:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-16 23:07:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-16 23:07:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 651 transitions. [2021-10-16 23:07:03,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.45083102493074795 [2021-10-16 23:07:03,453 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 651 transitions. [2021-10-16 23:07:03,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 651 transitions. [2021-10-16 23:07:03,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:03,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 651 transitions. [2021-10-16 23:07:03,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 34.26315789473684) internal successors, (651), 19 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 76.0) internal successors, (1520), 20 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,457 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 76.0) internal successors, (1520), 20 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,457 INFO L186 Difference]: Start difference. First operand has 130 places, 148 transitions, 989 flow. Second operand 19 states and 651 transitions. [2021-10-16 23:07:03,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 249 transitions, 2142 flow [2021-10-16 23:07:03,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 249 transitions, 2093 flow, removed 21 selfloop flow, removed 8 redundant places. [2021-10-16 23:07:03,473 INFO L242 Difference]: Finished difference. Result has 145 places, 170 transitions, 1370 flow [2021-10-16 23:07:03,473 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1370, PETRI_PLACES=145, PETRI_TRANSITIONS=170} [2021-10-16 23:07:03,473 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 67 predicate places. [2021-10-16 23:07:03,473 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 170 transitions, 1370 flow [2021-10-16 23:07:03,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,474 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:03,474 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:03,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:07:03,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:03,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:03,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1127088110, now seen corresponding path program 1 times [2021-10-16 23:07:03,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:03,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695329125] [2021-10-16 23:07:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:03,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:03,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:03,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695329125] [2021-10-16 23:07:03,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695329125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:03,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:03,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:03,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059984769] [2021-10-16 23:07:03,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:03,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:03,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:03,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:03,624 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 76 [2021-10-16 23:07:03,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 170 transitions, 1370 flow. Second operand has 13 states, 13 states have (on average 31.846153846153847) internal successors, (414), 13 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:03,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 76 [2021-10-16 23:07:03,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:04,032 INFO L129 PetriNetUnfolder]: 297/836 cut-off events. [2021-10-16 23:07:04,032 INFO L130 PetriNetUnfolder]: For 2986/2987 co-relation queries the response was YES. [2021-10-16 23:07:04,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 836 events. 297/836 cut-off events. For 2986/2987 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4678 event pairs, 22 based on Foata normal form. 23/859 useless extension candidates. Maximal degree in co-relation 3791. Up to 177 conditions per place. [2021-10-16 23:07:04,038 INFO L132 encePairwiseOnDemand]: 63/76 looper letters, 73 selfloop transitions, 25 changer transitions 141/264 dead transitions. [2021-10-16 23:07:04,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 264 transitions, 2805 flow [2021-10-16 23:07:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 23:07:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-16 23:07:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 481 transitions. [2021-10-16 23:07:04,040 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4868421052631579 [2021-10-16 23:07:04,040 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 481 transitions. [2021-10-16 23:07:04,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 481 transitions. [2021-10-16 23:07:04,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:04,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 481 transitions. [2021-10-16 23:07:04,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 37.0) internal successors, (481), 13 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 76.0) internal successors, (1064), 14 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,044 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 76.0) internal successors, (1064), 14 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,044 INFO L186 Difference]: Start difference. First operand has 145 places, 170 transitions, 1370 flow. Second operand 13 states and 481 transitions. [2021-10-16 23:07:04,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 264 transitions, 2805 flow [2021-10-16 23:07:04,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 264 transitions, 2606 flow, removed 66 selfloop flow, removed 10 redundant places. [2021-10-16 23:07:04,063 INFO L242 Difference]: Finished difference. Result has 141 places, 98 transitions, 595 flow [2021-10-16 23:07:04,063 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=595, PETRI_PLACES=141, PETRI_TRANSITIONS=98} [2021-10-16 23:07:04,063 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 63 predicate places. [2021-10-16 23:07:04,063 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 98 transitions, 595 flow [2021-10-16 23:07:04,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 31.846153846153847) internal successors, (414), 13 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,064 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:04,064 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:04,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 23:07:04,064 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:04,064 INFO L82 PathProgramCache]: Analyzing trace with hash 430641500, now seen corresponding path program 3 times [2021-10-16 23:07:04,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:04,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342639889] [2021-10-16 23:07:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:04,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:04,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:04,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342639889] [2021-10-16 23:07:04,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342639889] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:04,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:04,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:04,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405969002] [2021-10-16 23:07:04,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:04,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:04,259 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:04,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 98 transitions, 595 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:04,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:04,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:04,544 INFO L129 PetriNetUnfolder]: 100/381 cut-off events. [2021-10-16 23:07:04,544 INFO L130 PetriNetUnfolder]: For 1308/1308 co-relation queries the response was YES. [2021-10-16 23:07:04,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 381 events. 100/381 cut-off events. For 1308/1308 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1548 event pairs, 9 based on Foata normal form. 6/387 useless extension candidates. Maximal degree in co-relation 1570. Up to 194 conditions per place. [2021-10-16 23:07:04,547 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 78 selfloop transitions, 18 changer transitions 10/131 dead transitions. [2021-10-16 23:07:04,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 131 transitions, 1050 flow [2021-10-16 23:07:04,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 23:07:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-16 23:07:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 504 transitions. [2021-10-16 23:07:04,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4421052631578947 [2021-10-16 23:07:04,549 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 504 transitions. [2021-10-16 23:07:04,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 504 transitions. [2021-10-16 23:07:04,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:04,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 504 transitions. [2021-10-16 23:07:04,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 33.6) internal successors, (504), 15 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,552 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,552 INFO L186 Difference]: Start difference. First operand has 141 places, 98 transitions, 595 flow. Second operand 15 states and 504 transitions. [2021-10-16 23:07:04,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 131 transitions, 1050 flow [2021-10-16 23:07:04,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 131 transitions, 793 flow, removed 76 selfloop flow, removed 26 redundant places. [2021-10-16 23:07:04,558 INFO L242 Difference]: Finished difference. Result has 126 places, 102 transitions, 521 flow [2021-10-16 23:07:04,558 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=521, PETRI_PLACES=126, PETRI_TRANSITIONS=102} [2021-10-16 23:07:04,558 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 48 predicate places. [2021-10-16 23:07:04,558 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 102 transitions, 521 flow [2021-10-16 23:07:04,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,559 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:04,559 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:04,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 23:07:04,559 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:04,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:04,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1268943080, now seen corresponding path program 4 times [2021-10-16 23:07:04,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:04,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912132465] [2021-10-16 23:07:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:04,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:04,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:04,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912132465] [2021-10-16 23:07:04,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912132465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:04,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:04,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:04,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381018893] [2021-10-16 23:07:04,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:04,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:04,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:04,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:04,695 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:04,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 102 transitions, 521 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:04,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:04,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:04,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:05,187 INFO L129 PetriNetUnfolder]: 120/440 cut-off events. [2021-10-16 23:07:05,188 INFO L130 PetriNetUnfolder]: For 808/808 co-relation queries the response was YES. [2021-10-16 23:07:05,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 440 events. 120/440 cut-off events. For 808/808 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1944 event pairs, 10 based on Foata normal form. 11/451 useless extension candidates. Maximal degree in co-relation 1483. Up to 116 conditions per place. [2021-10-16 23:07:05,190 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 93 selfloop transitions, 12 changer transitions 57/187 dead transitions. [2021-10-16 23:07:05,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 187 transitions, 1371 flow [2021-10-16 23:07:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 23:07:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-16 23:07:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 606 transitions. [2021-10-16 23:07:05,192 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.44298245614035087 [2021-10-16 23:07:05,192 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 606 transitions. [2021-10-16 23:07:05,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 606 transitions. [2021-10-16 23:07:05,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:05,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 606 transitions. [2021-10-16 23:07:05,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 33.666666666666664) internal successors, (606), 18 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 76.0) internal successors, (1444), 19 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,196 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 76.0) internal successors, (1444), 19 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,196 INFO L186 Difference]: Start difference. First operand has 126 places, 102 transitions, 521 flow. Second operand 18 states and 606 transitions. [2021-10-16 23:07:05,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 187 transitions, 1371 flow [2021-10-16 23:07:05,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 187 transitions, 1337 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-10-16 23:07:05,202 INFO L242 Difference]: Finished difference. Result has 140 places, 96 transitions, 506 flow [2021-10-16 23:07:05,203 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=506, PETRI_PLACES=140, PETRI_TRANSITIONS=96} [2021-10-16 23:07:05,203 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 62 predicate places. [2021-10-16 23:07:05,203 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 96 transitions, 506 flow [2021-10-16 23:07:05,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:05,203 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:05,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 23:07:05,204 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:05,204 INFO L82 PathProgramCache]: Analyzing trace with hash -709223788, now seen corresponding path program 5 times [2021-10-16 23:07:05,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:05,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098624214] [2021-10-16 23:07:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:05,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:05,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:05,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098624214] [2021-10-16 23:07:05,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098624214] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:05,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:05,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:05,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903311977] [2021-10-16 23:07:05,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:05,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:05,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:05,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:05,372 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:05,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 96 transitions, 506 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:05,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:05,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:05,810 INFO L129 PetriNetUnfolder]: 87/356 cut-off events. [2021-10-16 23:07:05,810 INFO L130 PetriNetUnfolder]: For 912/914 co-relation queries the response was YES. [2021-10-16 23:07:05,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 356 events. 87/356 cut-off events. For 912/914 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1436 event pairs, 9 based on Foata normal form. 13/369 useless extension candidates. Maximal degree in co-relation 1298. Up to 158 conditions per place. [2021-10-16 23:07:05,812 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 68 selfloop transitions, 17 changer transitions 30/140 dead transitions. [2021-10-16 23:07:05,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 140 transitions, 1020 flow [2021-10-16 23:07:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 566 transitions. [2021-10-16 23:07:05,814 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43808049535603716 [2021-10-16 23:07:05,814 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 566 transitions. [2021-10-16 23:07:05,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 566 transitions. [2021-10-16 23:07:05,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:05,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 566 transitions. [2021-10-16 23:07:05,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 33.294117647058826) internal successors, (566), 17 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,817 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,818 INFO L186 Difference]: Start difference. First operand has 140 places, 96 transitions, 506 flow. Second operand 17 states and 566 transitions. [2021-10-16 23:07:05,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 140 transitions, 1020 flow [2021-10-16 23:07:05,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 140 transitions, 902 flow, removed 36 selfloop flow, removed 17 redundant places. [2021-10-16 23:07:05,823 INFO L242 Difference]: Finished difference. Result has 138 places, 96 transitions, 487 flow [2021-10-16 23:07:05,823 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=487, PETRI_PLACES=138, PETRI_TRANSITIONS=96} [2021-10-16 23:07:05,823 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 60 predicate places. [2021-10-16 23:07:05,823 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 96 transitions, 487 flow [2021-10-16 23:07:05,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,823 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:05,824 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:05,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 23:07:05,824 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1013245300, now seen corresponding path program 6 times [2021-10-16 23:07:05,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:05,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597093069] [2021-10-16 23:07:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:05,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:05,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:05,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597093069] [2021-10-16 23:07:05,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597093069] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:05,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:05,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:05,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785119078] [2021-10-16 23:07:05,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:05,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:05,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:05,958 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:05,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 96 transitions, 487 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:05,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:05,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:05,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:06,426 INFO L129 PetriNetUnfolder]: 70/288 cut-off events. [2021-10-16 23:07:06,426 INFO L130 PetriNetUnfolder]: For 665/667 co-relation queries the response was YES. [2021-10-16 23:07:06,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 288 events. 70/288 cut-off events. For 665/667 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 966 event pairs, 5 based on Foata normal form. 13/301 useless extension candidates. Maximal degree in co-relation 1010. Up to 100 conditions per place. [2021-10-16 23:07:06,428 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 59 selfloop transitions, 8 changer transitions 56/148 dead transitions. [2021-10-16 23:07:06,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 148 transitions, 1052 flow [2021-10-16 23:07:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:06,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 566 transitions. [2021-10-16 23:07:06,430 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43808049535603716 [2021-10-16 23:07:06,430 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 566 transitions. [2021-10-16 23:07:06,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 566 transitions. [2021-10-16 23:07:06,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:06,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 566 transitions. [2021-10-16 23:07:06,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 33.294117647058826) internal successors, (566), 17 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,433 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,433 INFO L186 Difference]: Start difference. First operand has 138 places, 96 transitions, 487 flow. Second operand 17 states and 566 transitions. [2021-10-16 23:07:06,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 148 transitions, 1052 flow [2021-10-16 23:07:06,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 148 transitions, 974 flow, removed 20 selfloop flow, removed 15 redundant places. [2021-10-16 23:07:06,438 INFO L242 Difference]: Finished difference. Result has 141 places, 86 transitions, 370 flow [2021-10-16 23:07:06,438 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=370, PETRI_PLACES=141, PETRI_TRANSITIONS=86} [2021-10-16 23:07:06,438 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 63 predicate places. [2021-10-16 23:07:06,438 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 86 transitions, 370 flow [2021-10-16 23:07:06,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:06,438 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:06,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 23:07:06,439 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:06,439 INFO L82 PathProgramCache]: Analyzing trace with hash -907655966, now seen corresponding path program 7 times [2021-10-16 23:07:06,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:06,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283309140] [2021-10-16 23:07:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:06,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:06,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:06,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283309140] [2021-10-16 23:07:06,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283309140] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:06,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:06,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:06,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676812589] [2021-10-16 23:07:06,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:06,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:06,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:06,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:06,581 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:06,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 86 transitions, 370 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:06,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:06,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:06,807 INFO L129 PetriNetUnfolder]: 38/197 cut-off events. [2021-10-16 23:07:06,807 INFO L130 PetriNetUnfolder]: For 347/349 co-relation queries the response was YES. [2021-10-16 23:07:06,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 197 events. 38/197 cut-off events. For 347/349 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 502 event pairs, 5 based on Foata normal form. 8/205 useless extension candidates. Maximal degree in co-relation 660. Up to 68 conditions per place. [2021-10-16 23:07:06,808 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 60 selfloop transitions, 13 changer transitions 12/110 dead transitions. [2021-10-16 23:07:06,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 110 transitions, 680 flow [2021-10-16 23:07:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 23:07:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-16 23:07:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 467 transitions. [2021-10-16 23:07:06,809 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43890977443609025 [2021-10-16 23:07:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 467 transitions. [2021-10-16 23:07:06,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 467 transitions. [2021-10-16 23:07:06,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:06,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 467 transitions. [2021-10-16 23:07:06,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 33.357142857142854) internal successors, (467), 14 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,812 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,812 INFO L186 Difference]: Start difference. First operand has 141 places, 86 transitions, 370 flow. Second operand 14 states and 467 transitions. [2021-10-16 23:07:06,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 110 transitions, 680 flow [2021-10-16 23:07:06,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 558 flow, removed 28 selfloop flow, removed 23 redundant places. [2021-10-16 23:07:06,815 INFO L242 Difference]: Finished difference. Result has 119 places, 86 transitions, 332 flow [2021-10-16 23:07:06,815 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=332, PETRI_PLACES=119, PETRI_TRANSITIONS=86} [2021-10-16 23:07:06,815 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 41 predicate places. [2021-10-16 23:07:06,815 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 86 transitions, 332 flow [2021-10-16 23:07:06,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:06,816 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:06,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 23:07:06,816 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:06,816 INFO L82 PathProgramCache]: Analyzing trace with hash -880213016, now seen corresponding path program 8 times [2021-10-16 23:07:06,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:06,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908921697] [2021-10-16 23:07:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:06,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:06,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:06,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908921697] [2021-10-16 23:07:06,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908921697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:06,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:06,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:06,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298006164] [2021-10-16 23:07:06,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:06,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:06,943 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:06,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 86 transitions, 332 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:06,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:06,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:06,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:07,450 INFO L129 PetriNetUnfolder]: 78/333 cut-off events. [2021-10-16 23:07:07,450 INFO L130 PetriNetUnfolder]: For 467/469 co-relation queries the response was YES. [2021-10-16 23:07:07,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 333 events. 78/333 cut-off events. For 467/469 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1304 event pairs, 12 based on Foata normal form. 13/346 useless extension candidates. Maximal degree in co-relation 1095. Up to 68 conditions per place. [2021-10-16 23:07:07,452 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 77 selfloop transitions, 15 changer transitions 37/154 dead transitions. [2021-10-16 23:07:07,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 154 transitions, 1023 flow [2021-10-16 23:07:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 564 transitions. [2021-10-16 23:07:07,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43653250773993807 [2021-10-16 23:07:07,453 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 564 transitions. [2021-10-16 23:07:07,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 564 transitions. [2021-10-16 23:07:07,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:07,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 564 transitions. [2021-10-16 23:07:07,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 33.1764705882353) internal successors, (564), 17 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:07,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:07,455 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:07,455 INFO L186 Difference]: Start difference. First operand has 119 places, 86 transitions, 332 flow. Second operand 17 states and 564 transitions. [2021-10-16 23:07:07,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 154 transitions, 1023 flow [2021-10-16 23:07:07,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 154 transitions, 949 flow, removed 10 selfloop flow, removed 12 redundant places. [2021-10-16 23:07:07,458 INFO L242 Difference]: Finished difference. Result has 128 places, 91 transitions, 418 flow [2021-10-16 23:07:07,459 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=418, PETRI_PLACES=128, PETRI_TRANSITIONS=91} [2021-10-16 23:07:07,459 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 50 predicate places. [2021-10-16 23:07:07,459 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 91 transitions, 418 flow [2021-10-16 23:07:07,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:07,459 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:07,459 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:07,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 23:07:07,459 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:07,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:07,460 INFO L82 PathProgramCache]: Analyzing trace with hash -478432652, now seen corresponding path program 9 times [2021-10-16 23:07:07,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:07,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500627585] [2021-10-16 23:07:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:07,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:07,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:07,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500627585] [2021-10-16 23:07:07,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500627585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:07,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:07,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:07,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638935274] [2021-10-16 23:07:07,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:07,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:07,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:07,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:07,594 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:07,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 91 transitions, 418 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:07,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:07,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:07,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:07,998 INFO L129 PetriNetUnfolder]: 66/307 cut-off events. [2021-10-16 23:07:07,998 INFO L130 PetriNetUnfolder]: For 617/621 co-relation queries the response was YES. [2021-10-16 23:07:07,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 307 events. 66/307 cut-off events. For 617/621 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1174 event pairs, 9 based on Foata normal form. 15/322 useless extension candidates. Maximal degree in co-relation 1074. Up to 106 conditions per place. [2021-10-16 23:07:08,000 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 61 selfloop transitions, 17 changer transitions 34/137 dead transitions. [2021-10-16 23:07:08,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 137 transitions, 926 flow [2021-10-16 23:07:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:08,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 562 transitions. [2021-10-16 23:07:08,001 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43498452012383904 [2021-10-16 23:07:08,001 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 562 transitions. [2021-10-16 23:07:08,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 562 transitions. [2021-10-16 23:07:08,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:08,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 562 transitions. [2021-10-16 23:07:08,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 33.05882352941177) internal successors, (562), 17 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,004 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,004 INFO L186 Difference]: Start difference. First operand has 128 places, 91 transitions, 418 flow. Second operand 17 states and 562 transitions. [2021-10-16 23:07:08,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 137 transitions, 926 flow [2021-10-16 23:07:08,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 137 transitions, 861 flow, removed 25 selfloop flow, removed 11 redundant places. [2021-10-16 23:07:08,008 INFO L242 Difference]: Finished difference. Result has 136 places, 91 transitions, 445 flow [2021-10-16 23:07:08,009 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=445, PETRI_PLACES=136, PETRI_TRANSITIONS=91} [2021-10-16 23:07:08,009 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 58 predicate places. [2021-10-16 23:07:08,009 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 91 transitions, 445 flow [2021-10-16 23:07:08,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:08,009 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:08,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 23:07:08,010 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:08,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:08,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1678018880, now seen corresponding path program 10 times [2021-10-16 23:07:08,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:08,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979435001] [2021-10-16 23:07:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:08,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:08,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:08,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:08,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979435001] [2021-10-16 23:07:08,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979435001] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:08,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:08,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:08,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543834169] [2021-10-16 23:07:08,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:08,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:08,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:08,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:08,155 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:08,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 91 transitions, 445 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:08,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:08,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:08,591 INFO L129 PetriNetUnfolder]: 63/301 cut-off events. [2021-10-16 23:07:08,591 INFO L130 PetriNetUnfolder]: For 688/690 co-relation queries the response was YES. [2021-10-16 23:07:08,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 301 events. 63/301 cut-off events. For 688/690 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1124 event pairs, 16 based on Foata normal form. 13/314 useless extension candidates. Maximal degree in co-relation 1103. Up to 51 conditions per place. [2021-10-16 23:07:08,592 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 70 selfloop transitions, 15 changer transitions 39/149 dead transitions. [2021-10-16 23:07:08,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 149 transitions, 1099 flow [2021-10-16 23:07:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 563 transitions. [2021-10-16 23:07:08,594 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4357585139318885 [2021-10-16 23:07:08,594 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 563 transitions. [2021-10-16 23:07:08,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 563 transitions. [2021-10-16 23:07:08,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:08,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 563 transitions. [2021-10-16 23:07:08,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 33.11764705882353) internal successors, (563), 17 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,597 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,597 INFO L186 Difference]: Start difference. First operand has 136 places, 91 transitions, 445 flow. Second operand 17 states and 563 transitions. [2021-10-16 23:07:08,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 149 transitions, 1099 flow [2021-10-16 23:07:08,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 149 transitions, 979 flow, removed 36 selfloop flow, removed 15 redundant places. [2021-10-16 23:07:08,601 INFO L242 Difference]: Finished difference. Result has 137 places, 86 transitions, 411 flow [2021-10-16 23:07:08,601 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=411, PETRI_PLACES=137, PETRI_TRANSITIONS=86} [2021-10-16 23:07:08,601 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 59 predicate places. [2021-10-16 23:07:08,601 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 86 transitions, 411 flow [2021-10-16 23:07:08,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,602 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:08,602 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:08,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 23:07:08,602 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:08,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash 849745886, now seen corresponding path program 11 times [2021-10-16 23:07:08,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:08,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673912459] [2021-10-16 23:07:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:08,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:08,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:08,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673912459] [2021-10-16 23:07:08,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673912459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:08,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:08,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:08,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131876215] [2021-10-16 23:07:08,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:08,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:08,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:08,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:08,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:08,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 86 transitions, 411 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:08,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:08,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:08,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:09,084 INFO L129 PetriNetUnfolder]: 41/240 cut-off events. [2021-10-16 23:07:09,084 INFO L130 PetriNetUnfolder]: For 520/522 co-relation queries the response was YES. [2021-10-16 23:07:09,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 240 events. 41/240 cut-off events. For 520/522 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 773 event pairs, 17 based on Foata normal form. 8/248 useless extension candidates. Maximal degree in co-relation 862. Up to 86 conditions per place. [2021-10-16 23:07:09,085 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 52 selfloop transitions, 18 changer transitions 11/106 dead transitions. [2021-10-16 23:07:09,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 106 transitions, 695 flow [2021-10-16 23:07:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 23:07:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-16 23:07:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 492 transitions. [2021-10-16 23:07:09,087 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43157894736842106 [2021-10-16 23:07:09,087 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 492 transitions. [2021-10-16 23:07:09,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 492 transitions. [2021-10-16 23:07:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:09,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 492 transitions. [2021-10-16 23:07:09,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 32.8) internal successors, (492), 15 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,090 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,090 INFO L186 Difference]: Start difference. First operand has 137 places, 86 transitions, 411 flow. Second operand 15 states and 492 transitions. [2021-10-16 23:07:09,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 106 transitions, 695 flow [2021-10-16 23:07:09,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 106 transitions, 624 flow, removed 21 selfloop flow, removed 14 redundant places. [2021-10-16 23:07:09,093 INFO L242 Difference]: Finished difference. Result has 138 places, 88 transitions, 429 flow [2021-10-16 23:07:09,093 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=429, PETRI_PLACES=138, PETRI_TRANSITIONS=88} [2021-10-16 23:07:09,093 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 60 predicate places. [2021-10-16 23:07:09,093 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 88 transitions, 429 flow [2021-10-16 23:07:09,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,094 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:09,094 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:09,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 23:07:09,094 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:09,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash 692245130, now seen corresponding path program 12 times [2021-10-16 23:07:09,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:09,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948830764] [2021-10-16 23:07:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:09,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:09,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:09,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948830764] [2021-10-16 23:07:09,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948830764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:09,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:09,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:09,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249063455] [2021-10-16 23:07:09,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:09,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:09,241 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:09,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 88 transitions, 429 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:09,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:09,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:09,659 INFO L129 PetriNetUnfolder]: 32/199 cut-off events. [2021-10-16 23:07:09,659 INFO L130 PetriNetUnfolder]: For 410/412 co-relation queries the response was YES. [2021-10-16 23:07:09,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 199 events. 32/199 cut-off events. For 410/412 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 528 event pairs, 7 based on Foata normal form. 13/212 useless extension candidates. Maximal degree in co-relation 692. Up to 48 conditions per place. [2021-10-16 23:07:09,660 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 47 selfloop transitions, 12 changer transitions 34/118 dead transitions. [2021-10-16 23:07:09,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 118 transitions, 778 flow [2021-10-16 23:07:09,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:07:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:07:09,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 552 transitions. [2021-10-16 23:07:09,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.42724458204334365 [2021-10-16 23:07:09,662 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 552 transitions. [2021-10-16 23:07:09,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 552 transitions. [2021-10-16 23:07:09,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:09,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 552 transitions. [2021-10-16 23:07:09,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 32.470588235294116) internal successors, (552), 17 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,664 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,664 INFO L186 Difference]: Start difference. First operand has 138 places, 88 transitions, 429 flow. Second operand 17 states and 552 transitions. [2021-10-16 23:07:09,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 118 transitions, 778 flow [2021-10-16 23:07:09,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 118 transitions, 740 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-10-16 23:07:09,684 INFO L242 Difference]: Finished difference. Result has 146 places, 81 transitions, 347 flow [2021-10-16 23:07:09,685 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=347, PETRI_PLACES=146, PETRI_TRANSITIONS=81} [2021-10-16 23:07:09,685 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 68 predicate places. [2021-10-16 23:07:09,685 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 81 transitions, 347 flow [2021-10-16 23:07:09,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,685 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:09,686 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:09,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 23:07:09,686 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash -623473774, now seen corresponding path program 13 times [2021-10-16 23:07:09,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:09,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321472718] [2021-10-16 23:07:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:09,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:09,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:09,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321472718] [2021-10-16 23:07:09,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321472718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:09,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:09,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:09,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117855192] [2021-10-16 23:07:09,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:09,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:09,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:09,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:09,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:09,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 81 transitions, 347 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:09,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:09,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:09,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:10,155 INFO L129 PetriNetUnfolder]: 21/159 cut-off events. [2021-10-16 23:07:10,155 INFO L130 PetriNetUnfolder]: For 317/319 co-relation queries the response was YES. [2021-10-16 23:07:10,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 159 events. 21/159 cut-off events. For 317/319 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 317 event pairs, 8 based on Foata normal form. 8/167 useless extension candidates. Maximal degree in co-relation 543. Up to 48 conditions per place. [2021-10-16 23:07:10,156 INFO L132 encePairwiseOnDemand]: 61/76 looper letters, 49 selfloop transitions, 14 changer transitions 11/99 dead transitions. [2021-10-16 23:07:10,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 99 transitions, 611 flow [2021-10-16 23:07:10,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 23:07:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-16 23:07:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 488 transitions. [2021-10-16 23:07:10,157 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4280701754385965 [2021-10-16 23:07:10,157 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 488 transitions. [2021-10-16 23:07:10,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 488 transitions. [2021-10-16 23:07:10,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:10,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 488 transitions. [2021-10-16 23:07:10,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 32.53333333333333) internal successors, (488), 15 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,159 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,159 INFO L186 Difference]: Start difference. First operand has 146 places, 81 transitions, 347 flow. Second operand 15 states and 488 transitions. [2021-10-16 23:07:10,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 99 transitions, 611 flow [2021-10-16 23:07:10,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 99 transitions, 526 flow, removed 19 selfloop flow, removed 19 redundant places. [2021-10-16 23:07:10,161 INFO L242 Difference]: Finished difference. Result has 132 places, 83 transitions, 344 flow [2021-10-16 23:07:10,162 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=344, PETRI_PLACES=132, PETRI_TRANSITIONS=83} [2021-10-16 23:07:10,162 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 54 predicate places. [2021-10-16 23:07:10,162 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 83 transitions, 344 flow [2021-10-16 23:07:10,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,162 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:10,162 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:10,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 23:07:10,162 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:10,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:10,163 INFO L82 PathProgramCache]: Analyzing trace with hash -556070500, now seen corresponding path program 14 times [2021-10-16 23:07:10,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:10,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903244603] [2021-10-16 23:07:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:10,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:07:10,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:10,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903244603] [2021-10-16 23:07:10,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903244603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:10,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:10,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:10,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639925983] [2021-10-16 23:07:10,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:10,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:10,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:10,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2021-10-16 23:07:10,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 83 transitions, 344 flow. Second operand has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:10,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2021-10-16 23:07:10,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:10,669 INFO L129 PetriNetUnfolder]: 12/118 cut-off events. [2021-10-16 23:07:10,669 INFO L130 PetriNetUnfolder]: For 176/178 co-relation queries the response was YES. [2021-10-16 23:07:10,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 118 events. 12/118 cut-off events. For 176/178 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 1 based on Foata normal form. 13/131 useless extension candidates. Maximal degree in co-relation 362. Up to 18 conditions per place. [2021-10-16 23:07:10,670 INFO L132 encePairwiseOnDemand]: 62/76 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2021-10-16 23:07:10,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 95 transitions, 549 flow [2021-10-16 23:07:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 23:07:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-16 23:07:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 511 transitions. [2021-10-16 23:07:10,671 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.42023026315789475 [2021-10-16 23:07:10,671 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 511 transitions. [2021-10-16 23:07:10,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 511 transitions. [2021-10-16 23:07:10,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:10,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 511 transitions. [2021-10-16 23:07:10,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 31.9375) internal successors, (511), 16 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 76.0) internal successors, (1292), 17 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,673 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 76.0) internal successors, (1292), 17 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,673 INFO L186 Difference]: Start difference. First operand has 132 places, 83 transitions, 344 flow. Second operand 16 states and 511 transitions. [2021-10-16 23:07:10,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 95 transitions, 549 flow [2021-10-16 23:07:10,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 95 transitions, 518 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-10-16 23:07:10,675 INFO L242 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2021-10-16 23:07:10,675 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2021-10-16 23:07:10,675 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 56 predicate places. [2021-10-16 23:07:10,675 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2021-10-16 23:07:10,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:10,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:10,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:07:10,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:10,678 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:10,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 23:07:10,686 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:07:10,686 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:07:10,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:07:10 BasicIcfg [2021-10-16 23:07:10,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:07:10,689 INFO L168 Benchmark]: Toolchain (without parser) took 11140.42 ms. Allocated memory was 207.6 MB in the beginning and 312.5 MB in the end (delta: 104.9 MB). Free memory was 154.7 MB in the beginning and 139.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 120.4 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,689 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 173.5 MB in the end (delta: 144.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:07:10,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.19 ms. Allocated memory is still 207.6 MB. Free memory was 154.6 MB in the beginning and 166.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 207.6 MB. Free memory was 166.5 MB in the beginning and 164.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,690 INFO L168 Benchmark]: Boogie Preprocessor took 27.77 ms. Allocated memory is still 207.6 MB. Free memory was 164.4 MB in the beginning and 162.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,690 INFO L168 Benchmark]: RCFGBuilder took 286.09 ms. Allocated memory is still 207.6 MB. Free memory was 162.8 MB in the beginning and 150.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,690 INFO L168 Benchmark]: TraceAbstraction took 10423.22 ms. Allocated memory was 207.6 MB in the beginning and 312.5 MB in the end (delta: 104.9 MB). Free memory was 149.7 MB in the beginning and 139.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 116.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:10,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 173.5 MB in the end (delta: 144.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 370.19 ms. Allocated memory is still 207.6 MB. Free memory was 154.6 MB in the beginning and 166.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 207.6 MB. Free memory was 166.5 MB in the beginning and 164.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.77 ms. Allocated memory is still 207.6 MB. Free memory was 164.4 MB in the beginning and 162.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 286.09 ms. Allocated memory is still 207.6 MB. Free memory was 162.8 MB in the beginning and 150.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10423.22 ms. Allocated memory was 207.6 MB in the beginning and 312.5 MB in the end (delta: 104.9 MB). Free memory was 149.7 MB in the beginning and 139.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 116.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 992]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 987]: 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, 93 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10354.6ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7275.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 42.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 299 SDtfs, 2112 SDslu, 524 SDs, 0 SdLazy, 5517 SolverSat, 991 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2359.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 4038.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1370occurred in iteration=5, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.2ms SsaConstructionTime, 204.2ms SatisfiabilityAnalysisTime, 2561.4ms InterpolantComputationTime, 992 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 8055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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! [2021-10-16 23:07:10,718 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...