/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 12:09:49,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-14 12:09:49,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-14 12:09:49,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-14 12:09:49,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-14 12:09:49,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-14 12:09:49,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-14 12:09:49,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-14 12:09:49,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-14 12:09:49,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-14 12:09:49,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-14 12:09:49,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-14 12:09:49,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-14 12:09:49,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-14 12:09:49,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-14 12:09:49,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-14 12:09:49,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-14 12:09:49,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-14 12:09:49,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-14 12:09:49,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-14 12:09:49,463 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 12:09:49,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 12:09:49,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 12:09:49,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 12:09:49,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 12:09:49,489 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 12:09:49,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:09:49,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 12:09:49,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 12:09:49,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 12:09:49,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 12:09:49,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 12:09:49,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 12:09:49,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-14 12:09:49,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 12:09:49,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 12:09:49,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 12:09:49,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 12:09:49,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 12:09:49,687 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 12:09:49,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2021-10-14 12:09:49,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81d7bc4f/327870d702cf42fcb93a4202ab43f0e2/FLAGe5c6b1741 [2021-10-14 12:09:50,166 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 12:09:50,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2021-10-14 12:09:50,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81d7bc4f/327870d702cf42fcb93a4202ab43f0e2/FLAGe5c6b1741 [2021-10-14 12:09:50,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81d7bc4f/327870d702cf42fcb93a4202ab43f0e2 [2021-10-14 12:09:50,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 12:09:50,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 12:09:50,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 12:09:50,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 12:09:50,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 12:09:50,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330f59d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50, skipping insertion in model container [2021-10-14 12:09:50,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 12:09:50,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 12:09:50,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:09:50,633 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 12:09:50,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:09:50,721 INFO L208 MainTranslator]: Completed translation [2021-10-14 12:09:50,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50 WrapperNode [2021-10-14 12:09:50,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 12:09:50,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 12:09:50,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 12:09:50,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 12:09:50,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 12:09:50,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 12:09:50,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 12:09:50,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 12:09:50,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 12:09:50,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 12:09:50,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 12:09:50,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 12:09:50,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (1/1) ... [2021-10-14 12:09:50,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:09:50,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 12:09:50,821 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 12:09:50,831 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 12:09:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 12:09:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 12:09:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 12:09:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-14 12:09:50,848 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 12:09:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 12:09:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-14 12:09:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 12:09:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 12:09:50,850 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 12:09:51,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 12:09:51,128 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-14 12:09:51,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:09:51 BoogieIcfgContainer [2021-10-14 12:09:51,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 12:09:51,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 12:09:51,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 12:09:51,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 12:09:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:09:50" (1/3) ... [2021-10-14 12:09:51,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0a25b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:09:51, skipping insertion in model container [2021-10-14 12:09:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:09:50" (2/3) ... [2021-10-14 12:09:51,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0a25b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:09:51, skipping insertion in model container [2021-10-14 12:09:51,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:09:51" (3/3) ... [2021-10-14 12:09:51,134 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2021-10-14 12:09:51,137 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 12:09:51,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-14 12:09:51,137 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 12:09:51,155 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,155 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,156 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,157 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,157 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,157 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,157 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,158 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,159 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,159 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,159 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,159 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,159 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,160 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,162 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,163 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,163 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,163 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,163 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,163 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:09:51,166 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-14 12:09:51,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 12:09:51,198 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 12:09:51,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-14 12:09:51,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 171 flow [2021-10-14 12:09:51,242 INFO L129 PetriNetUnfolder]: 1/82 cut-off events. [2021-10-14 12:09:51,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:09:51,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-10-14 12:09:51,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 171 flow [2021-10-14 12:09:51,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 82 transitions, 167 flow [2021-10-14 12:09:51,269 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-10-14 12:09:51,269 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:09:51,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:51,270 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 12:09:51,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 12:09:51,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:51,276 INFO L82 PathProgramCache]: Analyzing trace with hash 128782753, now seen corresponding path program 1 times [2021-10-14 12:09:51,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:51,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644723726] [2021-10-14 12:09:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:51,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:09:51,489 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 12:09:51,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:09:51,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644723726] [2021-10-14 12:09:51,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644723726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:09:51,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:09:51,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 12:09:51,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012570200] [2021-10-14 12:09:51,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 12:09:51,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:09:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 12:09:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 12:09:51,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 83 [2021-10-14 12:09:51,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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 12:09:51,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:09:51,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 83 [2021-10-14 12:09:51,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:09:51,621 INFO L129 PetriNetUnfolder]: 79/302 cut-off events. [2021-10-14 12:09:51,621 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-14 12:09:51,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 302 events. 79/302 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1164 event pairs, 20 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 430. Up to 138 conditions per place. [2021-10-14 12:09:51,624 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 30 selfloop transitions, 22 changer transitions 4/111 dead transitions. [2021-10-14 12:09:51,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 337 flow [2021-10-14 12:09:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 12:09:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-14 12:09:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 393 transitions. [2021-10-14 12:09:51,633 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7891566265060241 [2021-10-14 12:09:51,634 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 393 transitions. [2021-10-14 12:09:51,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 393 transitions. [2021-10-14 12:09:51,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:09:51,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 393 transitions. [2021-10-14 12:09:51,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 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 12:09:51,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 12:09:51,646 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 12:09:51,647 INFO L186 Difference]: Start difference. First operand has 85 places, 82 transitions, 167 flow. Second operand 6 states and 393 transitions. [2021-10-14 12:09:51,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 337 flow [2021-10-14 12:09:51,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-14 12:09:51,652 INFO L242 Difference]: Finished difference. Result has 94 places, 103 transitions, 316 flow [2021-10-14 12:09:51,653 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=94, PETRI_TRANSITIONS=103} [2021-10-14 12:09:51,654 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 9 predicate places. [2021-10-14 12:09:51,654 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 103 transitions, 316 flow [2021-10-14 12:09:51,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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 12:09:51,654 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:51,654 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 12:09:51,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 12:09:51,655 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-14 12:09:51,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:51,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1198921605, now seen corresponding path program 1 times [2021-10-14 12:09:51,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:51,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779709249] [2021-10-14 12:09:51,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:51,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:09:51,804 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 12:09:51,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:09:51,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779709249] [2021-10-14 12:09:51,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779709249] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:09:51,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:09:51,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 12:09:51,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025818126] [2021-10-14 12:09:51,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 12:09:51,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:09:51,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 12:09:51,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 12:09:51,809 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2021-10-14 12:09:51,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 103 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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 12:09:51,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:09:51,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2021-10-14 12:09:51,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:09:51,984 INFO L129 PetriNetUnfolder]: 114/391 cut-off events. [2021-10-14 12:09:51,984 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2021-10-14 12:09:51,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 391 events. 114/391 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1724 event pairs, 17 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 875. Up to 183 conditions per place. [2021-10-14 12:09:51,990 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 37 selfloop transitions, 26 changer transitions 11/139 dead transitions. [2021-10-14 12:09:51,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 139 transitions, 632 flow [2021-10-14 12:09:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 12:09:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-14 12:09:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2021-10-14 12:09:51,995 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8795180722891566 [2021-10-14 12:09:51,996 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2021-10-14 12:09:51,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2021-10-14 12:09:51,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:09:51,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2021-10-14 12:09:51,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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 12:09:52,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 12:09:52,000 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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 12:09:52,000 INFO L186 Difference]: Start difference. First operand has 94 places, 103 transitions, 316 flow. Second operand 6 states and 438 transitions. [2021-10-14 12:09:52,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 139 transitions, 632 flow [2021-10-14 12:09:52,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 139 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-14 12:09:52,008 INFO L242 Difference]: Finished difference. Result has 104 places, 124 transitions, 540 flow [2021-10-14 12:09:52,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=540, PETRI_PLACES=104, PETRI_TRANSITIONS=124} [2021-10-14 12:09:52,008 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 19 predicate places. [2021-10-14 12:09:52,009 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 124 transitions, 540 flow [2021-10-14 12:09:52,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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 12:09:52,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:09:52,009 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 12:09:52,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 12:09:52,010 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 12:09:52,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:09:52,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1740490972, now seen corresponding path program 1 times [2021-10-14 12:09:52,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:09:52,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047793500] [2021-10-14 12:09:52,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:09:52,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:09:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:09:52,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 12:09:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:09:52,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 12:09:52,127 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 12:09:52,128 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:52,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:52,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 12:09:52,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:09:52,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 12:09:52,138 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 12:09:52,138 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 12:09:52,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:09:52 BasicIcfg [2021-10-14 12:09:52,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 12:09:52,203 INFO L168 Benchmark]: Toolchain (without parser) took 2003.31 ms. Allocated memory was 194.0 MB in the beginning and 256.9 MB in the end (delta: 62.9 MB). Free memory was 141.7 MB in the beginning and 197.9 MB in the end (delta: -56.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,203 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 194.0 MB. Free memory was 160.3 MB in the beginning and 160.1 MB in the end (delta: 143.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 12:09:52,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.98 ms. Allocated memory is still 194.0 MB. Free memory was 141.5 MB in the beginning and 152.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 194.0 MB. Free memory was 152.1 MB in the beginning and 149.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,206 INFO L168 Benchmark]: Boogie Preprocessor took 28.64 ms. Allocated memory is still 194.0 MB. Free memory was 149.5 MB in the beginning and 147.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,206 INFO L168 Benchmark]: RCFGBuilder took 339.54 ms. Allocated memory is still 194.0 MB. Free memory was 147.9 MB in the beginning and 134.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,207 INFO L168 Benchmark]: TraceAbstraction took 1070.06 ms. Allocated memory was 194.0 MB in the beginning and 256.9 MB in the end (delta: 62.9 MB). Free memory was 134.8 MB in the beginning and 197.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 880.0 kB. Max. memory is 8.0 GB. [2021-10-14 12:09:52,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 194.0 MB. Free memory was 160.3 MB in the beginning and 160.1 MB in the end (delta: 143.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 521.98 ms. Allocated memory is still 194.0 MB. Free memory was 141.5 MB in the beginning and 152.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 194.0 MB. Free memory was 152.1 MB in the beginning and 149.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.64 ms. Allocated memory is still 194.0 MB. Free memory was 149.5 MB in the beginning and 147.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 339.54 ms. Allocated memory is still 194.0 MB. Free memory was 147.9 MB in the beginning and 134.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1070.06 ms. Allocated memory was 194.0 MB in the beginning and 256.9 MB in the end (delta: 62.9 MB). Free memory was 134.8 MB in the beginning and 197.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 880.0 kB. 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: 989]: the program contains a data race the program contains a data race We found a FailurePath: [L982-L986] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={7:0}, B={9:0}] [L996] 0 int x = __VERIFIER_nondet_int(); VAL [A={7:0}, B={9:0}] [L997] 0 pthread_t id; VAL [A={7:0}, B={9:0}] [L998] 0 struct s *s; VAL [A={7:0}, B={9:0}] [L999] 0 int *d; VAL [A={7:0}, B={9:0}] [L1000] 0 pthread_mutex_t *m; VAL [A={7:0}, B={9:0}] [L1001] COND FALSE 0 !(\read(x)) VAL [A={7:0}, B={9:0}] [L1005] 0 s = &B VAL [A={7:0}, B={9:0}] [L1006] 0 x++ VAL [A={7:0}, B={9:0}] [L1008] 0 m = &s->mutex VAL [A={7:0}, B={9:0}] [L1009] 0 d = &s->datum VAL [A={7:0}, B={9:0}] [L1010] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={7:0}, arg={0:0}, B={9:0}] [L989] 1 B.datum = 5 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=38] [L1012] 0 *d = 8 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=38] [L989] 1 B.datum = 5 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=38] [L1012] 0 *d = 8 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=38] [L989] 1 B.datum = 5 VAL [A={7:0}, arg={0:0}, arg={0:0}, B={9:0}, B.datum = 5=38] - UnprovableResult [Line: 1012]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1010]: 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, 100 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 21.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 943.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 351.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 216 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 143.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=2, InterpolantAutomatonStates: 12, 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: 10.8ms SsaConstructionTime, 78.2ms SatisfiabilityAnalysisTime, 232.0ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 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 12:09:52,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...