/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/03-practical_08-nonterm1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:47:19,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:47:19,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:47:19,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-19 14:47:19,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:47:19,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:47:19,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:47:19,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:47:19,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:47:19,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:47:19,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:47:19,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:47:19,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:47:19,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:47:19,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:47:19,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:47:19,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:47:19,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:47:19,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:47:19,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:47:19,709 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 [2021-10-19 14:47:19,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:47:19,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:47:19,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:47:19,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:47:19,738 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:47:19,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:47:19,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:47:19,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:19,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:47:19,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:47:19,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:47:19,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:47:19,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:47:19,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:47:19,911 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:47:19,911 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:47:19,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_08-nonterm1.i [2021-10-19 14:47:19,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5b1b3c1/4b0136cee4bc44f9b682fd0d35e3fa47/FLAGc6deeff16 [2021-10-19 14:47:20,387 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:47:20,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_08-nonterm1.i [2021-10-19 14:47:20,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5b1b3c1/4b0136cee4bc44f9b682fd0d35e3fa47/FLAGc6deeff16 [2021-10-19 14:47:20,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5b1b3c1/4b0136cee4bc44f9b682fd0d35e3fa47 [2021-10-19 14:47:20,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:47:20,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:47:20,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:20,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:47:20,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:47:20,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26293bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20, skipping insertion in model container [2021-10-19 14:47:20,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:47:20,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:47:20,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:20,730 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:47:20,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:20,796 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:47:20,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20 WrapperNode [2021-10-19 14:47:20,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:20,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:20,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:47:20,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:47:20,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:20,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:47:20,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:47:20,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:47:20,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:47:20,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:47:20,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:47:20,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:47:20,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (1/1) ... [2021-10-19 14:47:20,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:20,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:47:20,912 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) [2021-10-19 14:47:20,927 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 [2021-10-19 14:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:47:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-19 14:47:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:47:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:47:20,940 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-19 14:47:21,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:47:21,188 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-19 14:47:21,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:21 BoogieIcfgContainer [2021-10-19 14:47:21,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:47:21,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:47:21,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:47:21,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:47:21,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:47:20" (1/3) ... [2021-10-19 14:47:21,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505c7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:21, skipping insertion in model container [2021-10-19 14:47:21,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:20" (2/3) ... [2021-10-19 14:47:21,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505c7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:21, skipping insertion in model container [2021-10-19 14:47:21,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:21" (3/3) ... [2021-10-19 14:47:21,196 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2021-10-19 14:47:21,199 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:47:21,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-19 14:47:21,199 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:47:21,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_fun_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,225 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:21,232 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-19 14:47:21,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:47:21,275 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 [2021-10-19 14:47:21,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-19 14:47:21,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 196 flow [2021-10-19 14:47:21,330 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-10-19 14:47:21,330 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:47:21,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2021-10-19 14:47:21,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 94 transitions, 196 flow [2021-10-19 14:47:21,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 87 transitions, 180 flow [2021-10-19 14:47:21,348 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-10-19 14:47:21,348 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:21,348 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:21,349 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] [2021-10-19 14:47:21,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:21,353 INFO L82 PathProgramCache]: Analyzing trace with hash -319586545, now seen corresponding path program 1 times [2021-10-19 14:47:21,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:21,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786842377] [2021-10-19 14:47:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:21,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:21,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:21,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786842377] [2021-10-19 14:47:21,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786842377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:21,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:21,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:21,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078108646] [2021-10-19 14:47:21,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:21,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:21,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:21,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:21,566 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2021-10-19 14:47:21,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:21,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2021-10-19 14:47:21,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:21,687 INFO L129 PetriNetUnfolder]: 84/399 cut-off events. [2021-10-19 14:47:21,687 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:21,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 399 events. 84/399 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1908 event pairs, 27 based on Foata normal form. 9/349 useless extension candidates. Maximal degree in co-relation 555. Up to 103 conditions per place. [2021-10-19 14:47:21,690 INFO L132 encePairwiseOnDemand]: 80/94 looper letters, 24 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2021-10-19 14:47:21,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 255 flow [2021-10-19 14:47:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2021-10-19 14:47:21,699 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8971631205673759 [2021-10-19 14:47:21,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2021-10-19 14:47:21,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2021-10-19 14:47:21,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:21,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2021-10-19 14:47:21,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,710 INFO L186 Difference]: Start difference. First operand has 89 places, 87 transitions, 180 flow. Second operand 3 states and 253 transitions. [2021-10-19 14:47:21,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 255 flow [2021-10-19 14:47:21,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 93 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:47:21,716 INFO L242 Difference]: Finished difference. Result has 84 places, 87 transitions, 236 flow [2021-10-19 14:47:21,718 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=84, PETRI_TRANSITIONS=87} [2021-10-19 14:47:21,718 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -5 predicate places. [2021-10-19 14:47:21,719 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 236 flow [2021-10-19 14:47:21,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:21,719 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] [2021-10-19 14:47:21,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:47:21,719 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:21,720 INFO L82 PathProgramCache]: Analyzing trace with hash 979162578, now seen corresponding path program 1 times [2021-10-19 14:47:21,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:21,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458565463] [2021-10-19 14:47:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:21,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:21,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:21,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458565463] [2021-10-19 14:47:21,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458565463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:21,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:21,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:21,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486928598] [2021-10-19 14:47:21,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:21,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:21,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:21,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:21,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 94 [2021-10-19 14:47:21,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:21,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 94 [2021-10-19 14:47:21,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:21,867 INFO L129 PetriNetUnfolder]: 104/501 cut-off events. [2021-10-19 14:47:21,868 INFO L130 PetriNetUnfolder]: For 169/179 co-relation queries the response was YES. [2021-10-19 14:47:21,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 501 events. 104/501 cut-off events. For 169/179 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2725 event pairs, 40 based on Foata normal form. 2/447 useless extension candidates. Maximal degree in co-relation 874. Up to 192 conditions per place. [2021-10-19 14:47:21,872 INFO L132 encePairwiseOnDemand]: 88/94 looper letters, 33 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2021-10-19 14:47:21,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 97 transitions, 354 flow [2021-10-19 14:47:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2021-10-19 14:47:21,876 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8297872340425532 [2021-10-19 14:47:21,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2021-10-19 14:47:21,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2021-10-19 14:47:21,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:21,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2021-10-19 14:47:21,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,880 INFO L186 Difference]: Start difference. First operand has 84 places, 87 transitions, 236 flow. Second operand 3 states and 234 transitions. [2021-10-19 14:47:21,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 97 transitions, 354 flow [2021-10-19 14:47:21,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 97 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:21,885 INFO L242 Difference]: Finished difference. Result has 86 places, 92 transitions, 274 flow [2021-10-19 14:47:21,885 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=86, PETRI_TRANSITIONS=92} [2021-10-19 14:47:21,885 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2021-10-19 14:47:21,886 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 92 transitions, 274 flow [2021-10-19 14:47:21,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,886 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:21,886 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] [2021-10-19 14:47:21,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:47:21,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:21,887 INFO L82 PathProgramCache]: Analyzing trace with hash 51516740, now seen corresponding path program 1 times [2021-10-19 14:47:21,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:21,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16589931] [2021-10-19 14:47:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:21,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:21,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:21,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:21,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16589931] [2021-10-19 14:47:21,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16589931] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:21,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:21,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:21,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750345760] [2021-10-19 14:47:21,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:21,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:21,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:21,947 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 94 [2021-10-19 14:47:21,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 92 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:21,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:21,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 94 [2021-10-19 14:47:21,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:22,018 INFO L129 PetriNetUnfolder]: 133/558 cut-off events. [2021-10-19 14:47:22,018 INFO L130 PetriNetUnfolder]: For 193/216 co-relation queries the response was YES. [2021-10-19 14:47:22,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 558 events. 133/558 cut-off events. For 193/216 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3072 event pairs, 39 based on Foata normal form. 2/507 useless extension candidates. Maximal degree in co-relation 1053. Up to 207 conditions per place. [2021-10-19 14:47:22,022 INFO L132 encePairwiseOnDemand]: 86/94 looper letters, 41 selfloop transitions, 12 changer transitions 0/111 dead transitions. [2021-10-19 14:47:22,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 111 transitions, 458 flow [2021-10-19 14:47:22,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:22,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2021-10-19 14:47:22,024 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.851063829787234 [2021-10-19 14:47:22,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2021-10-19 14:47:22,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2021-10-19 14:47:22,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:22,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2021-10-19 14:47:22,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,032 INFO L186 Difference]: Start difference. First operand has 86 places, 92 transitions, 274 flow. Second operand 3 states and 240 transitions. [2021-10-19 14:47:22,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 111 transitions, 458 flow [2021-10-19 14:47:22,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 111 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:22,040 INFO L242 Difference]: Finished difference. Result has 88 places, 100 transitions, 358 flow [2021-10-19 14:47:22,040 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=88, PETRI_TRANSITIONS=100} [2021-10-19 14:47:22,041 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -1 predicate places. [2021-10-19 14:47:22,041 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 100 transitions, 358 flow [2021-10-19 14:47:22,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:22,041 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] [2021-10-19 14:47:22,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:47:22,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:22,042 INFO L82 PathProgramCache]: Analyzing trace with hash -599832110, now seen corresponding path program 1 times [2021-10-19 14:47:22,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:22,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737694426] [2021-10-19 14:47:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:22,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:22,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:22,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737694426] [2021-10-19 14:47:22,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737694426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:22,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:22,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-19 14:47:22,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377019579] [2021-10-19 14:47:22,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:22,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:22,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:22,112 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 94 [2021-10-19 14:47:22,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 100 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:22,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 94 [2021-10-19 14:47:22,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:22,155 INFO L129 PetriNetUnfolder]: 32/259 cut-off events. [2021-10-19 14:47:22,156 INFO L130 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2021-10-19 14:47:22,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 259 events. 32/259 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1037 event pairs, 6 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 419. Up to 37 conditions per place. [2021-10-19 14:47:22,157 INFO L132 encePairwiseOnDemand]: 89/94 looper letters, 10 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2021-10-19 14:47:22,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 308 flow [2021-10-19 14:47:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2021-10-19 14:47:22,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9113475177304965 [2021-10-19 14:47:22,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2021-10-19 14:47:22,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2021-10-19 14:47:22,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:22,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2021-10-19 14:47:22,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,161 INFO L186 Difference]: Start difference. First operand has 88 places, 100 transitions, 358 flow. Second operand 3 states and 257 transitions. [2021-10-19 14:47:22,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 308 flow [2021-10-19 14:47:22,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 90 transitions, 276 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-10-19 14:47:22,165 INFO L242 Difference]: Finished difference. Result has 85 places, 89 transitions, 263 flow [2021-10-19 14:47:22,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=85, PETRI_TRANSITIONS=89} [2021-10-19 14:47:22,165 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -4 predicate places. [2021-10-19 14:47:22,165 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 89 transitions, 263 flow [2021-10-19 14:47:22,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,165 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:22,166 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] [2021-10-19 14:47:22,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:47:22,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:22,166 INFO L82 PathProgramCache]: Analyzing trace with hash 213176066, now seen corresponding path program 1 times [2021-10-19 14:47:22,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:22,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441111167] [2021-10-19 14:47:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:22,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:22,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:22,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441111167] [2021-10-19 14:47:22,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441111167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:22,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:22,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:22,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553860819] [2021-10-19 14:47:22,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:47:22,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:22,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:47:22,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:47:22,294 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 94 [2021-10-19 14:47:22,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 89 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 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) [2021-10-19 14:47:22,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:22,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 94 [2021-10-19 14:47:22,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:22,326 INFO L129 PetriNetUnfolder]: 30/240 cut-off events. [2021-10-19 14:47:22,326 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-10-19 14:47:22,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 240 events. 30/240 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 976 event pairs, 6 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 370. Up to 32 conditions per place. [2021-10-19 14:47:22,327 INFO L132 encePairwiseOnDemand]: 89/94 looper letters, 5 selfloop transitions, 4 changer transitions 2/88 dead transitions. [2021-10-19 14:47:22,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 279 flow [2021-10-19 14:47:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 490 transitions. [2021-10-19 14:47:22,328 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8687943262411347 [2021-10-19 14:47:22,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 490 transitions. [2021-10-19 14:47:22,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 490 transitions. [2021-10-19 14:47:22,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:22,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 490 transitions. [2021-10-19 14:47:22,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,331 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,331 INFO L186 Difference]: Start difference. First operand has 85 places, 89 transitions, 263 flow. Second operand 6 states and 490 transitions. [2021-10-19 14:47:22,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 279 flow [2021-10-19 14:47:22,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 88 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:47:22,335 INFO L242 Difference]: Finished difference. Result has 88 places, 86 transitions, 256 flow [2021-10-19 14:47:22,335 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2021-10-19 14:47:22,335 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -1 predicate places. [2021-10-19 14:47:22,335 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 256 flow [2021-10-19 14:47:22,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 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) [2021-10-19 14:47:22,335 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:22,336 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:22,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:47:22,336 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:22,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:22,336 INFO L82 PathProgramCache]: Analyzing trace with hash 945341019, now seen corresponding path program 1 times [2021-10-19 14:47:22,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:22,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566944841] [2021-10-19 14:47:22,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:22,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:22,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:22,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:22,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566944841] [2021-10-19 14:47:22,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566944841] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:22,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:22,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:22,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24639034] [2021-10-19 14:47:22,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:22,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:22,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:22,358 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 94 [2021-10-19 14:47:22,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:22,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 94 [2021-10-19 14:47:22,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:22,407 INFO L129 PetriNetUnfolder]: 69/350 cut-off events. [2021-10-19 14:47:22,407 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2021-10-19 14:47:22,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 350 events. 69/350 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1586 event pairs, 22 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 685. Up to 126 conditions per place. [2021-10-19 14:47:22,408 INFO L132 encePairwiseOnDemand]: 88/94 looper letters, 27 selfloop transitions, 7 changer transitions 8/97 dead transitions. [2021-10-19 14:47:22,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 97 transitions, 382 flow [2021-10-19 14:47:22,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2021-10-19 14:47:22,409 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8156028368794326 [2021-10-19 14:47:22,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2021-10-19 14:47:22,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2021-10-19 14:47:22,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:22,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2021-10-19 14:47:22,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,411 INFO L186 Difference]: Start difference. First operand has 88 places, 86 transitions, 256 flow. Second operand 3 states and 230 transitions. [2021-10-19 14:47:22,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 97 transitions, 382 flow [2021-10-19 14:47:22,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 375 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:47:22,414 INFO L242 Difference]: Finished difference. Result has 88 places, 86 transitions, 285 flow [2021-10-19 14:47:22,414 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2021-10-19 14:47:22,414 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, -1 predicate places. [2021-10-19 14:47:22,414 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 285 flow [2021-10-19 14:47:22,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:22,414 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:22,415 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:22,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-19 14:47:22,417 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-10-19 14:47:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:22,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1350984776, now seen corresponding path program 1 times [2021-10-19 14:47:22,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:22,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383930440] [2021-10-19 14:47:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:22,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:47:22,439 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-19 14:47:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:47:22,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-19 14:47:22,471 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-19 14:47:22,472 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:22,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-19 14:47:22,482 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:47:22,482 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:47:22,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:47:22 BasicIcfg [2021-10-19 14:47:22,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:47:22,525 INFO L168 Benchmark]: Toolchain (without parser) took 2117.46 ms. Allocated memory was 186.6 MB in the beginning and 235.9 MB in the end (delta: 49.3 MB). Free memory was 135.1 MB in the beginning and 105.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,525 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 186.6 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:47:22,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.96 ms. Allocated memory is still 186.6 MB. Free memory was 134.8 MB in the beginning and 145.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.54 ms. Allocated memory is still 186.6 MB. Free memory was 145.8 MB in the beginning and 143.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,526 INFO L168 Benchmark]: Boogie Preprocessor took 34.09 ms. Allocated memory is still 186.6 MB. Free memory was 143.7 MB in the beginning and 142.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,527 INFO L168 Benchmark]: RCFGBuilder took 304.57 ms. Allocated memory is still 186.6 MB. Free memory was 142.1 MB in the beginning and 129.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,529 INFO L168 Benchmark]: TraceAbstraction took 1333.33 ms. Allocated memory was 186.6 MB in the beginning and 235.9 MB in the end (delta: 49.3 MB). Free memory was 129.0 MB in the beginning and 105.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:22,530 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 186.6 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 385.96 ms. Allocated memory is still 186.6 MB. Free memory was 134.8 MB in the beginning and 145.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.54 ms. Allocated memory is still 186.6 MB. Free memory was 145.8 MB in the beginning and 143.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.09 ms. Allocated memory is still 186.6 MB. Free memory was 143.7 MB in the beginning and 142.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.57 ms. Allocated memory is still 186.6 MB. Free memory was 142.1 MB in the beginning and 129.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1333.33 ms. Allocated memory was 186.6 MB in the beginning and 235.9 MB in the end (delta: 49.3 MB). Free memory was 129.0 MB in the beginning and 105.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 74.3 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: 917]: the program contains a data race the program contains a data race We found a FailurePath: [L911] 0 int myglobal; VAL [myglobal=0] [L912] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={5:0}, myglobal=0] [L913] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={5:0}, mutex2={6:0}, myglobal=0] [L929] 0 pthread_t id; VAL [mutex1={5:0}, mutex2={6:0}, myglobal=0] [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [mutex1={5:0}, mutex2={6:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=1] [L932] EXPR 0 myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=1] [L915] 1 int i = __VERIFIER_nondet_int(); VAL [mutex1={5:0}, mutex2={6:0}, myglobal=1] [L917] 1 myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=1] [L932] 0 myglobal=myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=2] [L917] 1 myglobal+1 VAL [mutex1={5:0}, mutex2={6:0}, myglobal=2] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: 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. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1213.9ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 519.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 63.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 94 SDtfs, 30 SDslu, 0 SDs, 0 SdLazy, 133 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=3, InterpolantAutomatonStates: 21, 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: 23.8ms SsaConstructionTime, 111.9ms SatisfiabilityAnalysisTime, 277.0ms InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2021-10-19 14:47:22,569 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...