/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/04-mutex_04-munge_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:14,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:14,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:14,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:14,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:14,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:14,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:14,154 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 23:06:14,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:14,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:14,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:14,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:14,179 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:14,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:14,179 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:14,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:14,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:14,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:14,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:14,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:14,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:14,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:14,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:14,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:14,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:14,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:14,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:14,182 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:14,182 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:14,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:14,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:14,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:14,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:14,410 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:14,411 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:14,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2021-10-16 23:06:14,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9744f3ea/882af25652ec43d4887769717d685911/FLAG9dcc307c3 [2021-10-16 23:06:15,145 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:15,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2021-10-16 23:06:15,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9744f3ea/882af25652ec43d4887769717d685911/FLAG9dcc307c3 [2021-10-16 23:06:15,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9744f3ea/882af25652ec43d4887769717d685911 [2021-10-16 23:06:15,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:15,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:15,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:15,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:15,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:15,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:15" (1/1) ... [2021-10-16 23:06:15,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76466fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:15, skipping insertion in model container [2021-10-16 23:06:15,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:15" (1/1) ... [2021-10-16 23:06:15,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:15,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:15,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:15,890 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:15,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:16,008 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:16,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16 WrapperNode [2021-10-16 23:06:16,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:16,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:16,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:16,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:16,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:16,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:16,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:16,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:16,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:16,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:16,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:16,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:16,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (1/1) ... [2021-10-16 23:06:16,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:16,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:16,132 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 23:06:16,172 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 23:06:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:16,192 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:16,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:16,195 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 23:06:16,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:16,404 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-16 23:06:16,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:16 BoogieIcfgContainer [2021-10-16 23:06:16,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:16,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:16,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:16,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:16,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:15" (1/3) ... [2021-10-16 23:06:16,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580d1d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:16, skipping insertion in model container [2021-10-16 23:06:16,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:16" (2/3) ... [2021-10-16 23:06:16,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580d1d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:16, skipping insertion in model container [2021-10-16 23:06:16,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:16" (3/3) ... [2021-10-16 23:06:16,420 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2021-10-16 23:06:16,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:16,423 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:16,423 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,439 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:16,452 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 23:06:16,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:16,498 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 23:06:16,498 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:16,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 142 flow [2021-10-16 23:06:16,556 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-10-16 23:06:16,556 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:16,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 0/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-16 23:06:16,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 67 transitions, 142 flow [2021-10-16 23:06:16,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2021-10-16 23:06:16,576 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-10-16 23:06:16,576 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:16,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:16,577 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] [2021-10-16 23:06:16,578 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 23:06:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:16,581 INFO L82 PathProgramCache]: Analyzing trace with hash -791740060, now seen corresponding path program 1 times [2021-10-16 23:06:16,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:16,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300742010] [2021-10-16 23:06:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:16,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:16,755 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 23:06:16,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:16,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300742010] [2021-10-16 23:06:16,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300742010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:16,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:16,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:16,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020289224] [2021-10-16 23:06:16,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:16,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:16,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:16,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:16,777 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 67 [2021-10-16 23:06:16,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 23:06:16,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:16,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 67 [2021-10-16 23:06:16,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:16,885 INFO L129 PetriNetUnfolder]: 33/204 cut-off events. [2021-10-16 23:06:16,886 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:16,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 204 events. 33/204 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 839 event pairs, 18 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 266. Up to 63 conditions per place. [2021-10-16 23:06:16,897 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 12 selfloop transitions, 5 changer transitions 1/64 dead transitions. [2021-10-16 23:06:16,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 167 flow [2021-10-16 23:06:16,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2021-10-16 23:06:16,907 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9154228855721394 [2021-10-16 23:06:16,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2021-10-16 23:06:16,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2021-10-16 23:06:16,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:16,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2021-10-16 23:06:16,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 23:06:16,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 23:06:16,919 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 23:06:16,920 INFO L186 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 3 states and 184 transitions. [2021-10-16 23:06:16,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 167 flow [2021-10-16 23:06:16,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:16,927 INFO L242 Difference]: Finished difference. Result has 65 places, 62 transitions, 156 flow [2021-10-16 23:06:16,929 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2021-10-16 23:06:16,929 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2021-10-16 23:06:16,930 INFO L470 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 156 flow [2021-10-16 23:06:16,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 23:06:16,930 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:16,930 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] [2021-10-16 23:06:16,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:16,930 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 23:06:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:16,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1965573328, now seen corresponding path program 1 times [2021-10-16 23:06:16,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:16,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680664596] [2021-10-16 23:06:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:16,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:16,998 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 23:06:16,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:16,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680664596] [2021-10-16 23:06:16,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680664596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:16,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:16,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:16,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527744335] [2021-10-16 23:06:17,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:17,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:17,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:17,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:17,004 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 67 [2021-10-16 23:06:17,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 23:06:17,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:17,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 67 [2021-10-16 23:06:17,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:17,053 INFO L129 PetriNetUnfolder]: 37/208 cut-off events. [2021-10-16 23:06:17,053 INFO L130 PetriNetUnfolder]: For 60/63 co-relation queries the response was YES. [2021-10-16 23:06:17,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 208 events. 37/208 cut-off events. For 60/63 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 824 event pairs, 15 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 357. Up to 63 conditions per place. [2021-10-16 23:06:17,054 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 11 selfloop transitions, 5 changer transitions 6/69 dead transitions. [2021-10-16 23:06:17,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 69 transitions, 224 flow [2021-10-16 23:06:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2021-10-16 23:06:17,059 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9253731343283582 [2021-10-16 23:06:17,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 186 transitions. [2021-10-16 23:06:17,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 186 transitions. [2021-10-16 23:06:17,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:17,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 186 transitions. [2021-10-16 23:06:17,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 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 23:06:17,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 23:06:17,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 23:06:17,065 INFO L186 Difference]: Start difference. First operand has 65 places, 62 transitions, 156 flow. Second operand 3 states and 186 transitions. [2021-10-16 23:06:17,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 69 transitions, 224 flow [2021-10-16 23:06:17,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:17,067 INFO L242 Difference]: Finished difference. Result has 67 places, 62 transitions, 172 flow [2021-10-16 23:06:17,067 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2021-10-16 23:06:17,068 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2021-10-16 23:06:17,068 INFO L470 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 172 flow [2021-10-16 23:06:17,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 23:06:17,068 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:17,068 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] [2021-10-16 23:06:17,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:17,069 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 23:06:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:17,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1117979287, now seen corresponding path program 1 times [2021-10-16 23:06:17,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:17,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897603013] [2021-10-16 23:06:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:17,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:17,256 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 23:06:17,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:17,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897603013] [2021-10-16 23:06:17,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897603013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:17,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:17,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:17,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481860112] [2021-10-16 23:06:17,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:17,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:17,258 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:17,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:17,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:17,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:17,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:17,546 INFO L129 PetriNetUnfolder]: 36/293 cut-off events. [2021-10-16 23:06:17,547 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2021-10-16 23:06:17,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 293 events. 36/293 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1429 event pairs, 3 based on Foata normal form. 1/289 useless extension candidates. Maximal degree in co-relation 484. Up to 34 conditions per place. [2021-10-16 23:06:17,552 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 20 selfloop transitions, 12 changer transitions 11/88 dead transitions. [2021-10-16 23:06:17,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 310 flow [2021-10-16 23:06:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-16 23:06:17,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-16 23:06:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 594 transitions. [2021-10-16 23:06:17,559 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2021-10-16 23:06:17,559 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 594 transitions. [2021-10-16 23:06:17,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 594 transitions. [2021-10-16 23:06:17,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:17,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 594 transitions. [2021-10-16 23:06:17,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:17,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 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 23:06:17,564 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 67.0) internal successors, (804), 12 states have internal predecessors, (804), 0 states have call successors, (0), 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 23:06:17,565 INFO L186 Difference]: Start difference. First operand has 67 places, 62 transitions, 172 flow. Second operand 11 states and 594 transitions. [2021-10-16 23:06:17,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 310 flow [2021-10-16 23:06:17,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 88 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:17,573 INFO L242 Difference]: Finished difference. Result has 77 places, 68 transitions, 204 flow [2021-10-16 23:06:17,573 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=204, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2021-10-16 23:06:17,578 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2021-10-16 23:06:17,578 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 204 flow [2021-10-16 23:06:17,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:17,578 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:17,578 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] [2021-10-16 23:06:17,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:17,579 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 23:06:17,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:17,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1396610027, now seen corresponding path program 2 times [2021-10-16 23:06:17,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:17,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728590510] [2021-10-16 23:06:17,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:17,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:17,733 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 23:06:17,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:17,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728590510] [2021-10-16 23:06:17,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728590510] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:17,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:17,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:17,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891573010] [2021-10-16 23:06:17,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:17,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:17,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:17,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:17,736 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:17,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:17,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:17,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:17,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:17,878 INFO L129 PetriNetUnfolder]: 25/259 cut-off events. [2021-10-16 23:06:17,878 INFO L130 PetriNetUnfolder]: For 50/53 co-relation queries the response was YES. [2021-10-16 23:06:17,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 259 events. 25/259 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1209 event pairs, 4 based on Foata normal form. 5/260 useless extension candidates. Maximal degree in co-relation 448. Up to 35 conditions per place. [2021-10-16 23:06:17,879 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 21 selfloop transitions, 7 changer transitions 11/84 dead transitions. [2021-10-16 23:06:17,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 84 transitions, 339 flow [2021-10-16 23:06:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 23:06:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-16 23:06:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 488 transitions. [2021-10-16 23:06:17,881 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8092868988391376 [2021-10-16 23:06:17,881 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 488 transitions. [2021-10-16 23:06:17,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 488 transitions. [2021-10-16 23:06:17,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:17,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 488 transitions. [2021-10-16 23:06:17,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.22222222222222) internal successors, (488), 9 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 23:06:17,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:17,884 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:17,884 INFO L186 Difference]: Start difference. First operand has 77 places, 68 transitions, 204 flow. Second operand 9 states and 488 transitions. [2021-10-16 23:06:17,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 84 transitions, 339 flow [2021-10-16 23:06:17,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 337 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:17,886 INFO L242 Difference]: Finished difference. Result has 87 places, 66 transitions, 224 flow [2021-10-16 23:06:17,886 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=224, PETRI_PLACES=87, PETRI_TRANSITIONS=66} [2021-10-16 23:06:17,887 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places. [2021-10-16 23:06:17,887 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 224 flow [2021-10-16 23:06:17,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:17,887 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:17,887 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] [2021-10-16 23:06:17,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:06:17,887 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 23:06:17,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:17,888 INFO L82 PathProgramCache]: Analyzing trace with hash -65726629, now seen corresponding path program 3 times [2021-10-16 23:06:17,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:17,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477130276] [2021-10-16 23:06:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:17,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:17,938 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 23:06:17,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:17,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477130276] [2021-10-16 23:06:17,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477130276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:17,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:17,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:17,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851161005] [2021-10-16 23:06:17,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:17,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:17,941 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:17,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:17,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:17,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:17,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:18,068 INFO L129 PetriNetUnfolder]: 32/369 cut-off events. [2021-10-16 23:06:18,069 INFO L130 PetriNetUnfolder]: For 188/192 co-relation queries the response was YES. [2021-10-16 23:06:18,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 369 events. 32/369 cut-off events. For 188/192 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2145 event pairs, 7 based on Foata normal form. 5/366 useless extension candidates. Maximal degree in co-relation 704. Up to 53 conditions per place. [2021-10-16 23:06:18,070 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 20 selfloop transitions, 15 changer transitions 3/83 dead transitions. [2021-10-16 23:06:18,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 384 flow [2021-10-16 23:06:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 23:06:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-16 23:06:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 538 transitions. [2021-10-16 23:06:18,072 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8029850746268656 [2021-10-16 23:06:18,072 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 538 transitions. [2021-10-16 23:06:18,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 538 transitions. [2021-10-16 23:06:18,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:18,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 538 transitions. [2021-10-16 23:06:18,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.8) internal successors, (538), 10 states have internal predecessors, (538), 0 states have call successors, (0), 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 23:06:18,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 67.0) internal successors, (737), 11 states have internal predecessors, (737), 0 states have call successors, (0), 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 23:06:18,075 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 67.0) internal successors, (737), 11 states have internal predecessors, (737), 0 states have call successors, (0), 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 23:06:18,075 INFO L186 Difference]: Start difference. First operand has 87 places, 66 transitions, 224 flow. Second operand 10 states and 538 transitions. [2021-10-16 23:06:18,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 83 transitions, 384 flow [2021-10-16 23:06:18,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 337 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-10-16 23:06:18,077 INFO L242 Difference]: Finished difference. Result has 86 places, 73 transitions, 288 flow [2021-10-16 23:06:18,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=288, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2021-10-16 23:06:18,078 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2021-10-16 23:06:18,078 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 288 flow [2021-10-16 23:06:18,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:18,078 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] [2021-10-16 23:06:18,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:06:18,079 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:18,079 INFO L82 PathProgramCache]: Analyzing trace with hash -752132447, now seen corresponding path program 4 times [2021-10-16 23:06:18,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:18,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133417590] [2021-10-16 23:06:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:18,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:18,130 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 23:06:18,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:18,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133417590] [2021-10-16 23:06:18,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133417590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:18,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:18,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:18,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10555659] [2021-10-16 23:06:18,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:18,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:18,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:18,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 288 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:18,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:18,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:18,284 INFO L129 PetriNetUnfolder]: 48/550 cut-off events. [2021-10-16 23:06:18,284 INFO L130 PetriNetUnfolder]: For 383/392 co-relation queries the response was YES. [2021-10-16 23:06:18,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 550 events. 48/550 cut-off events. For 383/392 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3850 event pairs, 14 based on Foata normal form. 9/548 useless extension candidates. Maximal degree in co-relation 1050. Up to 79 conditions per place. [2021-10-16 23:06:18,286 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 26 selfloop transitions, 17 changer transitions 8/96 dead transitions. [2021-10-16 23:06:18,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 523 flow [2021-10-16 23:06:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 23:06:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-16 23:06:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 492 transitions. [2021-10-16 23:06:18,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8159203980099502 [2021-10-16 23:06:18,288 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 492 transitions. [2021-10-16 23:06:18,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 492 transitions. [2021-10-16 23:06:18,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:18,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 492 transitions. [2021-10-16 23:06:18,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.666666666666664) internal successors, (492), 9 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 23:06:18,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,290 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,290 INFO L186 Difference]: Start difference. First operand has 86 places, 73 transitions, 288 flow. Second operand 9 states and 492 transitions. [2021-10-16 23:06:18,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 523 flow [2021-10-16 23:06:18,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 96 transitions, 509 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-16 23:06:18,293 INFO L242 Difference]: Finished difference. Result has 97 places, 79 transitions, 394 flow [2021-10-16 23:06:18,294 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=394, PETRI_PLACES=97, PETRI_TRANSITIONS=79} [2021-10-16 23:06:18,294 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 35 predicate places. [2021-10-16 23:06:18,294 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 79 transitions, 394 flow [2021-10-16 23:06:18,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:18,294 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] [2021-10-16 23:06:18,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 23:06:18,295 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 23:06:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:18,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1210192007, now seen corresponding path program 5 times [2021-10-16 23:06:18,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:18,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876669231] [2021-10-16 23:06:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:18,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:18,341 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 23:06:18,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:18,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876669231] [2021-10-16 23:06:18,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876669231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:18,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:18,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:18,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430986714] [2021-10-16 23:06:18,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:18,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:18,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:18,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:18,344 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:18,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 79 transitions, 394 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:18,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:18,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:18,472 INFO L129 PetriNetUnfolder]: 45/522 cut-off events. [2021-10-16 23:06:18,472 INFO L130 PetriNetUnfolder]: For 710/723 co-relation queries the response was YES. [2021-10-16 23:06:18,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 522 events. 45/522 cut-off events. For 710/723 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3559 event pairs, 14 based on Foata normal form. 8/520 useless extension candidates. Maximal degree in co-relation 1089. Up to 76 conditions per place. [2021-10-16 23:06:18,475 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 23 selfloop transitions, 17 changer transitions 9/94 dead transitions. [2021-10-16 23:06:18,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 589 flow [2021-10-16 23:06:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 23:06:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-16 23:06:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 489 transitions. [2021-10-16 23:06:18,476 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8109452736318408 [2021-10-16 23:06:18,477 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 489 transitions. [2021-10-16 23:06:18,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 489 transitions. [2021-10-16 23:06:18,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:18,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 489 transitions. [2021-10-16 23:06:18,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.333333333333336) internal successors, (489), 9 states have internal predecessors, (489), 0 states have call successors, (0), 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 23:06:18,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,479 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,479 INFO L186 Difference]: Start difference. First operand has 97 places, 79 transitions, 394 flow. Second operand 9 states and 489 transitions. [2021-10-16 23:06:18,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 589 flow [2021-10-16 23:06:18,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 94 transitions, 566 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-10-16 23:06:18,482 INFO L242 Difference]: Finished difference. Result has 103 places, 78 transitions, 434 flow [2021-10-16 23:06:18,483 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=103, PETRI_TRANSITIONS=78} [2021-10-16 23:06:18,483 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 41 predicate places. [2021-10-16 23:06:18,483 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 78 transitions, 434 flow [2021-10-16 23:06:18,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,483 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:18,483 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] [2021-10-16 23:06:18,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 23:06:18,484 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 23:06:18,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:18,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1015646103, now seen corresponding path program 6 times [2021-10-16 23:06:18,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:18,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273799450] [2021-10-16 23:06:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:18,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:18,543 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 23:06:18,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:18,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273799450] [2021-10-16 23:06:18,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273799450] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:18,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:18,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:18,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326503050] [2021-10-16 23:06:18,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:18,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:18,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:18,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:18,545 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:18,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 78 transitions, 434 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:18,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:18,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:18,676 INFO L129 PetriNetUnfolder]: 42/492 cut-off events. [2021-10-16 23:06:18,676 INFO L130 PetriNetUnfolder]: For 1064/1074 co-relation queries the response was YES. [2021-10-16 23:06:18,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 492 events. 42/492 cut-off events. For 1064/1074 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3317 event pairs, 12 based on Foata normal form. 7/488 useless extension candidates. Maximal degree in co-relation 1058. Up to 73 conditions per place. [2021-10-16 23:06:18,678 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 22 selfloop transitions, 19 changer transitions 2/88 dead transitions. [2021-10-16 23:06:18,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 88 transitions, 577 flow [2021-10-16 23:06:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 23:06:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-16 23:06:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 540 transitions. [2021-10-16 23:06:18,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2021-10-16 23:06:18,680 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 540 transitions. [2021-10-16 23:06:18,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 540 transitions. [2021-10-16 23:06:18,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:18,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 540 transitions. [2021-10-16 23:06:18,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 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 23:06:18,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 67.0) internal successors, (737), 11 states have internal predecessors, (737), 0 states have call successors, (0), 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 23:06:18,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 67.0) internal successors, (737), 11 states have internal predecessors, (737), 0 states have call successors, (0), 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 23:06:18,684 INFO L186 Difference]: Start difference. First operand has 103 places, 78 transitions, 434 flow. Second operand 10 states and 540 transitions. [2021-10-16 23:06:18,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 88 transitions, 577 flow [2021-10-16 23:06:18,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 523 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-10-16 23:06:18,687 INFO L242 Difference]: Finished difference. Result has 105 places, 81 transitions, 475 flow [2021-10-16 23:06:18,687 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=475, PETRI_PLACES=105, PETRI_TRANSITIONS=81} [2021-10-16 23:06:18,687 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 43 predicate places. [2021-10-16 23:06:18,687 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 81 transitions, 475 flow [2021-10-16 23:06:18,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,688 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:18,688 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] [2021-10-16 23:06:18,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 23:06:18,688 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 23:06:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -985543563, now seen corresponding path program 7 times [2021-10-16 23:06:18,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:18,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197555366] [2021-10-16 23:06:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:18,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:18,753 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 23:06:18,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:18,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197555366] [2021-10-16 23:06:18,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197555366] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:18,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:18,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:18,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614918040] [2021-10-16 23:06:18,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:18,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:18,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:18,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:18,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 81 transitions, 475 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:18,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:18,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:18,865 INFO L129 PetriNetUnfolder]: 32/387 cut-off events. [2021-10-16 23:06:18,865 INFO L130 PetriNetUnfolder]: For 725/732 co-relation queries the response was YES. [2021-10-16 23:06:18,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 387 events. 32/387 cut-off events. For 725/732 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2299 event pairs, 9 based on Foata normal form. 6/386 useless extension candidates. Maximal degree in co-relation 843. Up to 56 conditions per place. [2021-10-16 23:06:18,866 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 19 selfloop transitions, 11 changer transitions 8/83 dead transitions. [2021-10-16 23:06:18,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 83 transitions, 524 flow [2021-10-16 23:06:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 23:06:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-16 23:06:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 486 transitions. [2021-10-16 23:06:18,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2021-10-16 23:06:18,868 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 486 transitions. [2021-10-16 23:06:18,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 486 transitions. [2021-10-16 23:06:18,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:18,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 486 transitions. [2021-10-16 23:06:18,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.0) internal successors, (486), 9 states have internal predecessors, (486), 0 states have call successors, (0), 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 23:06:18,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,870 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 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 23:06:18,870 INFO L186 Difference]: Start difference. First operand has 105 places, 81 transitions, 475 flow. Second operand 9 states and 486 transitions. [2021-10-16 23:06:18,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 83 transitions, 524 flow [2021-10-16 23:06:18,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 83 transitions, 490 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-10-16 23:06:18,873 INFO L242 Difference]: Finished difference. Result has 107 places, 73 transitions, 365 flow [2021-10-16 23:06:18,873 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=365, PETRI_PLACES=107, PETRI_TRANSITIONS=73} [2021-10-16 23:06:18,873 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 45 predicate places. [2021-10-16 23:06:18,873 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 73 transitions, 365 flow [2021-10-16 23:06:18,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,874 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:18,874 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] [2021-10-16 23:06:18,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 23:06:18,874 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 23:06:18,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash -818198835, now seen corresponding path program 8 times [2021-10-16 23:06:18,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:18,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796147302] [2021-10-16 23:06:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:18,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:18,915 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 23:06:18,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:18,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796147302] [2021-10-16 23:06:18,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796147302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:18,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:18,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:18,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037574767] [2021-10-16 23:06:18,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:18,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:18,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:18,919 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:18,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 73 transitions, 365 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:18,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:18,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:18,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:19,002 INFO L129 PetriNetUnfolder]: 17/229 cut-off events. [2021-10-16 23:06:19,002 INFO L130 PetriNetUnfolder]: For 320/325 co-relation queries the response was YES. [2021-10-16 23:06:19,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 229 events. 17/229 cut-off events. For 320/325 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 982 event pairs, 6 based on Foata normal form. 4/230 useless extension candidates. Maximal degree in co-relation 499. Up to 32 conditions per place. [2021-10-16 23:06:19,003 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 15 selfloop transitions, 6 changer transitions 8/74 dead transitions. [2021-10-16 23:06:19,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 74 transitions, 390 flow [2021-10-16 23:06:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 23:06:19,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-16 23:06:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 429 transitions. [2021-10-16 23:06:19,005 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8003731343283582 [2021-10-16 23:06:19,005 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 429 transitions. [2021-10-16 23:06:19,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 429 transitions. [2021-10-16 23:06:19,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:19,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 429 transitions. [2021-10-16 23:06:19,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.625) internal successors, (429), 8 states have internal predecessors, (429), 0 states have call successors, (0), 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 23:06:19,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 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 23:06:19,007 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 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 23:06:19,008 INFO L186 Difference]: Start difference. First operand has 107 places, 73 transitions, 365 flow. Second operand 8 states and 429 transitions. [2021-10-16 23:06:19,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 74 transitions, 390 flow [2021-10-16 23:06:19,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 74 transitions, 338 flow, removed 7 selfloop flow, removed 14 redundant places. [2021-10-16 23:06:19,010 INFO L242 Difference]: Finished difference. Result has 93 places, 64 transitions, 229 flow [2021-10-16 23:06:19,011 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=229, PETRI_PLACES=93, PETRI_TRANSITIONS=64} [2021-10-16 23:06:19,011 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 31 predicate places. [2021-10-16 23:06:19,011 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 64 transitions, 229 flow [2021-10-16 23:06:19,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:19,011 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:19,011 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] [2021-10-16 23:06:19,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 23:06:19,012 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 23:06:19,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:19,013 INFO L82 PathProgramCache]: Analyzing trace with hash -334021477, now seen corresponding path program 9 times [2021-10-16 23:06:19,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:19,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374625284] [2021-10-16 23:06:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:19,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:19,074 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 23:06:19,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:19,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374625284] [2021-10-16 23:06:19,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374625284] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:19,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:19,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:19,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935767695] [2021-10-16 23:06:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:19,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:19,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:19,082 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:19,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 64 transitions, 229 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:19,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:19,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:19,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:19,160 INFO L129 PetriNetUnfolder]: 15/181 cut-off events. [2021-10-16 23:06:19,160 INFO L130 PetriNetUnfolder]: For 131/133 co-relation queries the response was YES. [2021-10-16 23:06:19,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 181 events. 15/181 cut-off events. For 131/133 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 671 event pairs, 4 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 365. Up to 25 conditions per place. [2021-10-16 23:06:19,161 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 12 selfloop transitions, 9 changer transitions 3/69 dead transitions. [2021-10-16 23:06:19,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 69 transitions, 293 flow [2021-10-16 23:06:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 23:06:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-16 23:06:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 425 transitions. [2021-10-16 23:06:19,162 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.792910447761194 [2021-10-16 23:06:19,163 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 425 transitions. [2021-10-16 23:06:19,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 425 transitions. [2021-10-16 23:06:19,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:19,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 425 transitions. [2021-10-16 23:06:19,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.125) internal successors, (425), 8 states have internal predecessors, (425), 0 states have call successors, (0), 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 23:06:19,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 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 23:06:19,165 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 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 23:06:19,165 INFO L186 Difference]: Start difference. First operand has 93 places, 64 transitions, 229 flow. Second operand 8 states and 425 transitions. [2021-10-16 23:06:19,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 69 transitions, 293 flow [2021-10-16 23:06:19,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 69 transitions, 252 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-10-16 23:06:19,166 INFO L242 Difference]: Finished difference. Result has 81 places, 64 transitions, 212 flow [2021-10-16 23:06:19,166 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=212, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2021-10-16 23:06:19,167 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2021-10-16 23:06:19,167 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 212 flow [2021-10-16 23:06:19,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:19,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:19,167 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] [2021-10-16 23:06:19,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 23:06:19,167 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 23:06:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash -303918937, now seen corresponding path program 10 times [2021-10-16 23:06:19,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:19,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924047541] [2021-10-16 23:06:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:19,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:19,212 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 23:06:19,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:19,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924047541] [2021-10-16 23:06:19,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924047541] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:19,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:19,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:19,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87551676] [2021-10-16 23:06:19,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:06:19,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:19,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:06:19,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:06:19,215 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 67 [2021-10-16 23:06:19,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 212 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:19,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:19,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 67 [2021-10-16 23:06:19,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:19,267 INFO L129 PetriNetUnfolder]: 5/76 cut-off events. [2021-10-16 23:06:19,267 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-10-16 23:06:19,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 76 events. 5/76 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 1 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 149. Up to 9 conditions per place. [2021-10-16 23:06:19,268 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2021-10-16 23:06:19,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 50 transitions, 195 flow [2021-10-16 23:06:19,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 23:06:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-16 23:06:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 371 transitions. [2021-10-16 23:06:19,269 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7910447761194029 [2021-10-16 23:06:19,269 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 371 transitions. [2021-10-16 23:06:19,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 371 transitions. [2021-10-16 23:06:19,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:19,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 371 transitions. [2021-10-16 23:06:19,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 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 23:06:19,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 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 23:06:19,271 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 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 23:06:19,271 INFO L186 Difference]: Start difference. First operand has 81 places, 64 transitions, 212 flow. Second operand 7 states and 371 transitions. [2021-10-16 23:06:19,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 50 transitions, 195 flow [2021-10-16 23:06:19,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 50 transitions, 163 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-10-16 23:06:19,272 INFO L242 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2021-10-16 23:06:19,272 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2021-10-16 23:06:19,273 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2021-10-16 23:06:19,273 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2021-10-16 23:06:19,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 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 23:06:19,275 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:19,275 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:19,275 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:19,275 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:19,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 23:06:19,280 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:19,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:19,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:19 BasicIcfg [2021-10-16 23:06:19,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:19,285 INFO L168 Benchmark]: Toolchain (without parser) took 3872.81 ms. Allocated memory was 162.5 MB in the beginning and 209.7 MB in the end (delta: 47.2 MB). Free memory was 111.5 MB in the beginning and 90.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,287 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 162.5 MB. Free memory was 129.9 MB in the beginning and 129.7 MB in the end (delta: 155.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:19,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.92 ms. Allocated memory is still 162.5 MB. Free memory was 111.3 MB in the beginning and 125.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 162.5 MB. Free memory was 125.2 MB in the beginning and 123.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,287 INFO L168 Benchmark]: Boogie Preprocessor took 28.71 ms. Allocated memory is still 162.5 MB. Free memory was 123.1 MB in the beginning and 121.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,288 INFO L168 Benchmark]: RCFGBuilder took 312.02 ms. Allocated memory is still 162.5 MB. Free memory was 121.5 MB in the beginning and 109.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,288 INFO L168 Benchmark]: TraceAbstraction took 2877.02 ms. Allocated memory was 162.5 MB in the beginning and 209.7 MB in the end (delta: 47.2 MB). Free memory was 108.9 MB in the beginning and 90.5 MB in the end (delta: 18.4 MB). Peak memory consumption was 65.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:19,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 162.5 MB. Free memory was 129.9 MB in the beginning and 129.7 MB in the end (delta: 155.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 592.92 ms. Allocated memory is still 162.5 MB. Free memory was 111.3 MB in the beginning and 125.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 162.5 MB. Free memory was 125.2 MB in the beginning and 123.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.71 ms. Allocated memory is still 162.5 MB. Free memory was 123.1 MB in the beginning and 121.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 312.02 ms. Allocated memory is still 162.5 MB. Free memory was 121.5 MB in the beginning and 109.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2877.02 ms. Allocated memory was 162.5 MB in the beginning and 209.7 MB in the end (delta: 47.2 MB). Free memory was 108.9 MB in the beginning and 90.5 MB in the end (delta: 18.4 MB). Peak memory consumption was 65.6 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: 914]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 914]: 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, 88 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2790.0ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1636.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 63.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 210 SDtfs, 206 SDslu, 421 SDs, 0 SdLazy, 731 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 356.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 752.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=475occurred in iteration=8, InterpolantAutomatonStates: 96, 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: 43.1ms SsaConstructionTime, 116.5ms SatisfiabilityAnalysisTime, 720.0ms InterpolantComputationTime, 439 NumberOfCodeBlocks, 439 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 427 ConstructedInterpolants, 0 QuantifiedInterpolants, 1181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 23:06:19,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...