/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 12:09:33,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-14 12:09:33,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-14 12:09:33,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-14 12:09:33,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-14 12:09:33,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-14 12:09:33,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-14 12:09:33,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-14 12:09:33,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-14 12:09:33,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-14 12:09:33,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-14 12:09:33,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-14 12:09:33,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-14 12:09:33,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-14 12:09:33,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-14 12:09:33,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-14 12:09:33,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-14 12:09:33,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-14 12:09:33,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-14 12:09:33,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-14 12:09:33,356 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 [2021-10-14 12:09:33,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 12:09:33,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 12:09:33,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 12:09:33,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 12:09:33,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 12:09:33,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 12:09:33,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 12:09:33,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 12:09:33,371 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 12:09:33,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 12:09:33,387 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 12:09:33,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 12:09:33,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:09:33,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 12:09:33,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 12:09:33,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-14 12:09:33,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 12:09:33,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 12:09:33,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 12:09:33,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 12:09:33,592 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 12:09:33,593 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 12:09:33,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2021-10-14 12:09:33,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1d04b2f/156c37ade59a4457bc32b67b1e4e4557/FLAGe10c08bda [2021-10-14 12:09:34,009 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 12:09:34,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2021-10-14 12:09:34,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1d04b2f/156c37ade59a4457bc32b67b1e4e4557/FLAGe10c08bda [2021-10-14 12:09:34,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1d04b2f/156c37ade59a4457bc32b67b1e4e4557 [2021-10-14 12:09:34,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 12:09:34,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 12:09:34,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 12:09:34,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 12:09:34,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 12:09:34,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106a0a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34, skipping insertion in model container [2021-10-14 12:09:34,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 12:09:34,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 12:09:34,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:09:34,760 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 12:09:34,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:09:34,835 INFO L208 MainTranslator]: Completed translation [2021-10-14 12:09:34,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34 WrapperNode [2021-10-14 12:09:34,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 12:09:34,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 12:09:34,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 12:09:34,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 12:09:34,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 12:09:34,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 12:09:34,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 12:09:34,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 12:09:34,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 12:09:34,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 12:09:34,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 12:09:34,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 12:09:34,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (1/1) ... [2021-10-14 12:09:34,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:09:34,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 12:09:34,932 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) [2021-10-14 12:09:34,958 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 [2021-10-14 12:09:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 12:09:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 12:09:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-14 12:09:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 12:09:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-14 12:09:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 12:09:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 12:09:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-14 12:09:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 12:09:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 12:09:34,974 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-14 12:09:35,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 12:09:35,179 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-14 12:09:35,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:09:35 BoogieIcfgContainer [2021-10-14 12:09:35,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 12:09:35,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 12:09:35,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 12:09:35,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 12:09:35,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:09:34" (1/3) ... [2021-10-14 12:09:35,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64911417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:09:35, skipping insertion in model container [2021-10-14 12:09:35,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:34" (2/3) ... [2021-10-14 12:09:35,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64911417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:09:35, skipping insertion in model container [2021-10-14 12:09:35,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:09:35" (3/3) ... [2021-10-14 12:09:35,185 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2021-10-14 12:09:35,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 12:09:35,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-14 12:09:35,189 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 12:09:35,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_f_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:35,219 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-14 12:09:35,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 12:09:35,261 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 [2021-10-14 12:09:35,262 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-14 12:09:35,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 146 flow [2021-10-14 12:09:35,304 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-10-14 12:09:35,305 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-14 12:09:35,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 0/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-14 12:09:35,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 146 flow [2021-10-14 12:09:35,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2021-10-14 12:09:35,324 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-10-14 12:09:35,324 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:09:35,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:35,324 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] [2021-10-14 12:09:35,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 12:09:35,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:35,329 INFO L82 PathProgramCache]: Analyzing trace with hash -119350288, now seen corresponding path program 1 times [2021-10-14 12:09:35,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:35,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340833477] [2021-10-14 12:09:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:35,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:09:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:09:35,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:09:35,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340833477] [2021-10-14 12:09:35,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340833477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:09:35,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:09:35,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 12:09:35,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366748476] [2021-10-14 12:09:35,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 12:09:35,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:09:35,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 12:09:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 12:09:35,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 69 [2021-10-14 12:09:35,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:09:35,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 69 [2021-10-14 12:09:35,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:09:35,591 INFO L129 PetriNetUnfolder]: 21/140 cut-off events. [2021-10-14 12:09:35,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:09:35,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 140 events. 21/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 465 event pairs, 11 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 170. Up to 40 conditions per place. [2021-10-14 12:09:35,594 INFO L132 encePairwiseOnDemand]: 64/69 looper letters, 10 selfloop transitions, 4 changer transitions 1/65 dead transitions. [2021-10-14 12:09:35,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 163 flow [2021-10-14 12:09:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 12:09:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-14 12:09:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2021-10-14 12:09:35,602 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9323671497584541 [2021-10-14 12:09:35,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 193 transitions. [2021-10-14 12:09:35,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 193 transitions. [2021-10-14 12:09:35,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:09:35,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 193 transitions. [2021-10-14 12:09:35,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,610 INFO L186 Difference]: Start difference. First operand has 64 places, 60 transitions, 123 flow. Second operand 3 states and 193 transitions. [2021-10-14 12:09:35,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 163 flow [2021-10-14 12:09:35,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-14 12:09:35,614 INFO L242 Difference]: Finished difference. Result has 67 places, 63 transitions, 152 flow [2021-10-14 12:09:35,615 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2021-10-14 12:09:35,616 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2021-10-14 12:09:35,616 INFO L470 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 152 flow [2021-10-14 12:09:35,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:35,617 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] [2021-10-14 12:09:35,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 12:09:35,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 12:09:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:35,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1297124522, now seen corresponding path program 1 times [2021-10-14 12:09:35,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:35,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684128619] [2021-10-14 12:09:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:35,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:09:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:09:35,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:09:35,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684128619] [2021-10-14 12:09:35,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684128619] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:09:35,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:09:35,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 12:09:35,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287642888] [2021-10-14 12:09:35,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 12:09:35,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:09:35,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 12:09:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 12:09:35,668 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 69 [2021-10-14 12:09:35,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:09:35,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 69 [2021-10-14 12:09:35,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:09:35,724 INFO L129 PetriNetUnfolder]: 24/170 cut-off events. [2021-10-14 12:09:35,725 INFO L130 PetriNetUnfolder]: For 44/46 co-relation queries the response was YES. [2021-10-14 12:09:35,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 170 events. 24/170 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 602 event pairs, 8 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 260. Up to 41 conditions per place. [2021-10-14 12:09:35,726 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 9 selfloop transitions, 5 changer transitions 6/70 dead transitions. [2021-10-14 12:09:35,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 216 flow [2021-10-14 12:09:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 12:09:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-14 12:09:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2021-10-14 12:09:35,747 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9371980676328503 [2021-10-14 12:09:35,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 194 transitions. [2021-10-14 12:09:35,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 194 transitions. [2021-10-14 12:09:35,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:09:35,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 194 transitions. [2021-10-14 12:09:35,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,750 INFO L186 Difference]: Start difference. First operand has 67 places, 63 transitions, 152 flow. Second operand 3 states and 194 transitions. [2021-10-14 12:09:35,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 216 flow [2021-10-14 12:09:35,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-14 12:09:35,752 INFO L242 Difference]: Finished difference. Result has 69 places, 63 transitions, 170 flow [2021-10-14 12:09:35,752 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=69, PETRI_TRANSITIONS=63} [2021-10-14 12:09:35,753 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2021-10-14 12:09:35,753 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 63 transitions, 170 flow [2021-10-14 12:09:35,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:09:35,753 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:35,753 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] [2021-10-14 12:09:35,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 12:09:35,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 12:09:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:35,754 INFO L82 PathProgramCache]: Analyzing trace with hash -2048758947, now seen corresponding path program 1 times [2021-10-14 12:09:35,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:35,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387825866] [2021-10-14 12:09:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:35,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:09:35,776 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 12:09:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:09:35,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 12:09:35,819 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 12:09:35,821 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 12:09:35,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:35,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 12:09:35,827 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 12:09:35,827 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 12:09:35,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:09:35 BasicIcfg [2021-10-14 12:09:35,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 12:09:35,864 INFO L168 Benchmark]: Toolchain (without parser) took 1472.05 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 117.5 MB in the beginning and 94.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,864 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 169.9 MB. Free memory is still 135.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 12:09:35,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.38 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 117.2 MB in the beginning and 167.6 MB in the end (delta: -50.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 206.6 MB. Free memory was 167.6 MB in the beginning and 165.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,867 INFO L168 Benchmark]: Boogie Preprocessor took 19.88 ms. Allocated memory is still 206.6 MB. Free memory was 165.5 MB in the beginning and 163.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,868 INFO L168 Benchmark]: RCFGBuilder took 276.17 ms. Allocated memory is still 206.6 MB. Free memory was 163.9 MB in the beginning and 151.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,868 INFO L168 Benchmark]: TraceAbstraction took 679.53 ms. Allocated memory is still 206.6 MB. Free memory was 151.3 MB in the beginning and 94.7 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:35,869 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 169.9 MB. Free memory is still 135.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 444.38 ms. Allocated memory was 169.9 MB in the beginning and 206.6 MB in the end (delta: 36.7 MB). Free memory was 117.2 MB in the beginning and 167.6 MB in the end (delta: -50.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 206.6 MB. Free memory was 167.6 MB in the beginning and 165.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.88 ms. Allocated memory is still 206.6 MB. Free memory was 165.5 MB in the beginning and 163.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 276.17 ms. Allocated memory is still 206.6 MB. Free memory was 163.9 MB in the beginning and 151.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 679.53 ms. Allocated memory is still 206.6 MB. Free memory was 151.3 MB in the beginning and 94.7 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 918]: the program contains a data race the program contains a data race We found a FailurePath: [L910] 0 int myglobal; VAL [myglobal=0] [L911] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, myglobal=0] [L912] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L923] 0 pthread_t id; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L914] 1 return 5; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L918] 1 myglobal=f() VAL [mutex1={3:0}, mutex2={5:0}, myglobal=5] [L926] 0 myglobal+1 VAL [mutex1={3:0}, mutex2={5:0}, myglobal=5] [L918] 1 myglobal=f() VAL [mutex1={3:0}, mutex2={5:0}, myglobal=5] - UnprovableResult [Line: 926]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 571.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 173.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 46.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.7ms SsaConstructionTime, 71.8ms SatisfiabilityAnalysisTime, 98.0ms InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-14 12:09:35,898 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...