/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_03-munge_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:11,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:11,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:11,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:11,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:11,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:11,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:11,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:11,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:11,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:11,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:11,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:11,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:11,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:11,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:11,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:11,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:11,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:11,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:11,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:11,674 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 23:06:11,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:11,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:11,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:11,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:11,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:11,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:11,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:11,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:11,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:11,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:11,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:11,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:11,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:11,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:11,867 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:11,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_03-munge_rc.i [2021-10-16 23:06:11,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d91b5a55/235aac79cb44462c8c16009eff872d32/FLAG285f5d1bc [2021-10-16 23:06:12,318 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:12,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_03-munge_rc.i [2021-10-16 23:06:12,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d91b5a55/235aac79cb44462c8c16009eff872d32/FLAG285f5d1bc [2021-10-16 23:06:12,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d91b5a55/235aac79cb44462c8c16009eff872d32 [2021-10-16 23:06:12,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:12,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:12,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:12,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:12,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:12,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762c9d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12, skipping insertion in model container [2021-10-16 23:06:12,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:12,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:12,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:12,697 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:12,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:12,772 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:12,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12 WrapperNode [2021-10-16 23:06:12,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:12,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:12,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:12,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:12,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:12,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:12,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:12,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:12,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:12,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:12,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:12,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:12,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (1/1) ... [2021-10-16 23:06:12,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:12,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:12,876 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 23:06:12,899 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 23:06:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:12,922 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 23:06:13,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:13,163 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-16 23:06:13,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:13 BoogieIcfgContainer [2021-10-16 23:06:13,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:13,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:13,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:13,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:13,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:12" (1/3) ... [2021-10-16 23:06:13,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4317bbc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:13, skipping insertion in model container [2021-10-16 23:06:13,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:12" (2/3) ... [2021-10-16 23:06:13,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4317bbc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:13, skipping insertion in model container [2021-10-16 23:06:13,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:13" (3/3) ... [2021-10-16 23:06:13,170 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_03-munge_rc.i [2021-10-16 23:06:13,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:13,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:13,173 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:13,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:13,213 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 23:06:13,246 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:13,256 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 23:06:13,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:13,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 154 flow [2021-10-16 23:06:13,289 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-10-16 23:06:13,289 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:13,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 0/72 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. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-16 23:06:13,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 154 flow [2021-10-16 23:06:13,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 64 transitions, 131 flow [2021-10-16 23:06:13,306 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-10-16 23:06:13,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:13,306 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:13,307 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] [2021-10-16 23:06:13,307 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 23:06:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:13,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1625419127, now seen corresponding path program 1 times [2021-10-16 23:06:13,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:13,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319907232] [2021-10-16 23:06:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:13,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:13,490 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 23:06:13,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:13,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319907232] [2021-10-16 23:06:13,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319907232] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:13,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:13,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:13,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274885224] [2021-10-16 23:06:13,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:13,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:13,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:13,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 73 [2021-10-16 23:06:13,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 23:06:13,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:13,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 73 [2021-10-16 23:06:13,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:13,592 INFO L129 PetriNetUnfolder]: 33/210 cut-off events. [2021-10-16 23:06:13,592 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:13,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 210 events. 33/210 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 837 event pairs, 18 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 266. Up to 63 conditions per place. [2021-10-16 23:06:13,596 INFO L132 encePairwiseOnDemand]: 67/73 looper letters, 12 selfloop transitions, 5 changer transitions 1/70 dead transitions. [2021-10-16 23:06:13,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 70 transitions, 179 flow [2021-10-16 23:06:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:13,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2021-10-16 23:06:13,608 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9223744292237442 [2021-10-16 23:06:13,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2021-10-16 23:06:13,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2021-10-16 23:06:13,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:13,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2021-10-16 23:06:13,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 23:06:13,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 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 23:06:13,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 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 23:06:13,621 INFO L186 Difference]: Start difference. First operand has 68 places, 64 transitions, 131 flow. Second operand 3 states and 202 transitions. [2021-10-16 23:06:13,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 70 transitions, 179 flow [2021-10-16 23:06:13,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 70 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:13,630 INFO L242 Difference]: Finished difference. Result has 71 places, 68 transitions, 168 flow [2021-10-16 23:06:13,631 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2021-10-16 23:06:13,632 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2021-10-16 23:06:13,632 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 168 flow [2021-10-16 23:06:13,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 23:06:13,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:13,633 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] [2021-10-16 23:06:13,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:13,633 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 23:06:13,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:13,634 INFO L82 PathProgramCache]: Analyzing trace with hash 467818585, now seen corresponding path program 1 times [2021-10-16 23:06:13,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:13,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336046323] [2021-10-16 23:06:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:13,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:13,707 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 23:06:13,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:13,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336046323] [2021-10-16 23:06:13,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336046323] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:13,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:13,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:13,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117336279] [2021-10-16 23:06:13,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:13,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:13,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:13,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:13,711 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 73 [2021-10-16 23:06:13,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 23:06:13,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:13,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 73 [2021-10-16 23:06:13,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:13,782 INFO L129 PetriNetUnfolder]: 37/214 cut-off events. [2021-10-16 23:06:13,782 INFO L130 PetriNetUnfolder]: For 60/63 co-relation queries the response was YES. [2021-10-16 23:06:13,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 214 events. 37/214 cut-off events. For 60/63 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 829 event pairs, 15 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 357. Up to 63 conditions per place. [2021-10-16 23:06:13,786 INFO L132 encePairwiseOnDemand]: 67/73 looper letters, 11 selfloop transitions, 5 changer transitions 6/75 dead transitions. [2021-10-16 23:06:13,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 236 flow [2021-10-16 23:06:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2021-10-16 23:06:13,791 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9315068493150684 [2021-10-16 23:06:13,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 204 transitions. [2021-10-16 23:06:13,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 204 transitions. [2021-10-16 23:06:13,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:13,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 204 transitions. [2021-10-16 23:06:13,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 23:06:13,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 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 23:06:13,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 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 23:06:13,794 INFO L186 Difference]: Start difference. First operand has 71 places, 68 transitions, 168 flow. Second operand 3 states and 204 transitions. [2021-10-16 23:06:13,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 236 flow [2021-10-16 23:06:13,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:13,799 INFO L242 Difference]: Finished difference. Result has 73 places, 68 transitions, 184 flow [2021-10-16 23:06:13,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2021-10-16 23:06:13,799 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 5 predicate places. [2021-10-16 23:06:13,800 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 184 flow [2021-10-16 23:06:13,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 23:06:13,800 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:13,800 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:13,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:13,800 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 23:06:13,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:13,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1064130614, now seen corresponding path program 1 times [2021-10-16 23:06:13,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:13,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274498030] [2021-10-16 23:06:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:13,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:13,842 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:13,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:13,880 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:13,881 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:13,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:13,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:13,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:13,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:13,889 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:13,889 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:13,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:13 BasicIcfg [2021-10-16 23:06:13,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:13,932 INFO L168 Benchmark]: Toolchain (without parser) took 1581.95 ms. Allocated memory is still 190.8 MB. Free memory was 139.8 MB in the beginning and 69.1 MB in the end (delta: 70.7 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,932 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 190.8 MB. Free memory is still 157.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:13,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.87 ms. Allocated memory is still 190.8 MB. Free memory was 139.6 MB in the beginning and 151.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 190.8 MB. Free memory was 151.4 MB in the beginning and 149.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,936 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 190.8 MB. Free memory was 149.1 MB in the beginning and 147.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,936 INFO L168 Benchmark]: RCFGBuilder took 313.48 ms. Allocated memory is still 190.8 MB. Free memory was 147.7 MB in the beginning and 135.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,937 INFO L168 Benchmark]: TraceAbstraction took 763.34 ms. Allocated memory is still 190.8 MB. Free memory was 135.1 MB in the beginning and 69.1 MB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:13,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 190.8 MB. Free memory is still 157.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 424.87 ms. Allocated memory is still 190.8 MB. Free memory was 139.6 MB in the beginning and 151.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 190.8 MB. Free memory was 151.4 MB in the beginning and 149.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 190.8 MB. Free memory was 149.1 MB in the beginning and 147.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.48 ms. Allocated memory is still 190.8 MB. Free memory was 147.7 MB in the beginning and 135.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 763.34 ms. Allocated memory is still 190.8 MB. Free memory was 135.1 MB in the beginning and 69.1 MB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 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 - CounterExampleResult [Line: 915]: the program contains a data race the program contains a data race We found a FailurePath: [L910] 0 int myglobal; VAL [myglobal=0] [L911] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, myglobal=0] [L912] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L923] 0 pthread_t id; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L915] 1 myglobal=myglobal+1 VAL [mutex1={3:0}, mutex2={5:0}, myglobal=1] [L915] 1 myglobal=myglobal+1 VAL [mutex1={3:0}, mutex2={5:0}, myglobal=1] - UnprovableResult [Line: 915]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 643.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 212.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 37.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 29 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=2, InterpolantAutomatonStates: 6, 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: 12.9ms SsaConstructionTime, 77.8ms SatisfiabilityAnalysisTime, 116.1ms InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:06:13,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...