/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_16-ps_add1_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:22,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:22,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:22,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:22,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:22,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:22,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:22,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:22,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:22,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:22,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:22,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:22,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:22,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:22,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:22,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:22,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:22,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:22,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:22,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:22,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:06:22,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:22,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:22,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:22,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:22,323 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:22,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:22,323 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:22,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:22,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:22,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:22,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:22,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:22,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:22,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:22,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:22,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:22,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:22,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:22,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:22,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:22,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:22,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:22,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:22,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:22,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:22,509 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:22,510 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:22,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_16-ps_add1_rc.i [2021-10-16 23:06:22,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef99dc41f/3493920f2382442cad86884c91a693ff/FLAGd057e9d09 [2021-10-16 23:06:22,934 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:22,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_16-ps_add1_rc.i [2021-10-16 23:06:22,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef99dc41f/3493920f2382442cad86884c91a693ff/FLAGd057e9d09 [2021-10-16 23:06:23,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef99dc41f/3493920f2382442cad86884c91a693ff [2021-10-16 23:06:23,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:23,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:23,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:23,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:23,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:23,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700c7993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23, skipping insertion in model container [2021-10-16 23:06:23,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:23,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:23,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:23,664 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:23,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:23,723 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:23,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23 WrapperNode [2021-10-16 23:06:23,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:23,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:23,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:23,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:23,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:23,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:23,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:23,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:23,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:23,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:23,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:23,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:23,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (1/1) ... [2021-10-16 23:06:23,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:23,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:23,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:06:23,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:06:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:23,863 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:06:24,164 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:24,165 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:24,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:24 BoogieIcfgContainer [2021-10-16 23:06:24,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:24,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:24,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:24,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:24,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:23" (1/3) ... [2021-10-16 23:06:24,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18da6f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:24, skipping insertion in model container [2021-10-16 23:06:24,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:23" (2/3) ... [2021-10-16 23:06:24,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18da6f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:24, skipping insertion in model container [2021-10-16 23:06:24,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:24" (3/3) ... [2021-10-16 23:06:24,174 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2021-10-16 23:06:24,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:24,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:24,179 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:24,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,205 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:24,223 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:06:24,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:24,269 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:06:24,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:24,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2021-10-16 23:06:24,322 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2021-10-16 23:06:24,322 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:24,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2021-10-16 23:06:24,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2021-10-16 23:06:24,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 155 flow [2021-10-16 23:06:24,355 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-10-16 23:06:24,355 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:24,355 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:24,356 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] [2021-10-16 23:06:24,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:24,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:24,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1489159542, now seen corresponding path program 1 times [2021-10-16 23:06:24,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:24,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152847694] [2021-10-16 23:06:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:24,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:24,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:24,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152847694] [2021-10-16 23:06:24,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152847694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:24,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:24,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:24,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455070934] [2021-10-16 23:06:24,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:24,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:24,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:24,579 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 77 [2021-10-16 23:06:24,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:24,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 77 [2021-10-16 23:06:24,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:24,665 INFO L129 PetriNetUnfolder]: 36/226 cut-off events. [2021-10-16 23:06:24,666 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:24,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 226 events. 36/226 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 854 event pairs, 14 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 273. Up to 54 conditions per place. [2021-10-16 23:06:24,670 INFO L132 encePairwiseOnDemand]: 71/77 looper letters, 11 selfloop transitions, 5 changer transitions 2/82 dead transitions. [2021-10-16 23:06:24,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 82 transitions, 201 flow [2021-10-16 23:06:24,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-10-16 23:06:24,681 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.935064935064935 [2021-10-16 23:06:24,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:24,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,694 INFO L186 Difference]: Start difference. First operand has 77 places, 76 transitions, 155 flow. Second operand 3 states and 216 transitions. [2021-10-16 23:06:24,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 82 transitions, 201 flow [2021-10-16 23:06:24,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:24,703 INFO L242 Difference]: Finished difference. Result has 80 places, 79 transitions, 190 flow [2021-10-16 23:06:24,706 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2021-10-16 23:06:24,707 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2021-10-16 23:06:24,707 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 190 flow [2021-10-16 23:06:24,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,712 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:24,712 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] [2021-10-16 23:06:24,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:24,712 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:24,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:24,713 INFO L82 PathProgramCache]: Analyzing trace with hash 2114523647, now seen corresponding path program 1 times [2021-10-16 23:06:24,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:24,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565965793] [2021-10-16 23:06:24,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:24,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:24,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:24,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565965793] [2021-10-16 23:06:24,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565965793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:24,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:24,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:24,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785639912] [2021-10-16 23:06:24,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:24,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:24,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:24,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:24,774 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 77 [2021-10-16 23:06:24,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:24,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 77 [2021-10-16 23:06:24,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:24,843 INFO L129 PetriNetUnfolder]: 39/251 cut-off events. [2021-10-16 23:06:24,843 INFO L130 PetriNetUnfolder]: For 59/65 co-relation queries the response was YES. [2021-10-16 23:06:24,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 251 events. 39/251 cut-off events. For 59/65 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1001 event pairs, 11 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 381. Up to 56 conditions per place. [2021-10-16 23:06:24,846 INFO L132 encePairwiseOnDemand]: 71/77 looper letters, 12 selfloop transitions, 5 changer transitions 5/86 dead transitions. [2021-10-16 23:06:24,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 86 transitions, 258 flow [2021-10-16 23:06:24,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-10-16 23:06:24,851 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.935064935064935 [2021-10-16 23:06:24,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:24,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-10-16 23:06:24,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,854 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,854 INFO L186 Difference]: Start difference. First operand has 80 places, 79 transitions, 190 flow. Second operand 3 states and 216 transitions. [2021-10-16 23:06:24,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 86 transitions, 258 flow [2021-10-16 23:06:24,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:24,858 INFO L242 Difference]: Finished difference. Result has 82 places, 80 transitions, 210 flow [2021-10-16 23:06:24,858 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=82, PETRI_TRANSITIONS=80} [2021-10-16 23:06:24,859 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2021-10-16 23:06:24,859 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 80 transitions, 210 flow [2021-10-16 23:06:24,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:24,859 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:24,859 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:24,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:24,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:24,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:24,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2131089256, now seen corresponding path program 1 times [2021-10-16 23:06:24,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:24,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187907202] [2021-10-16 23:06:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:24,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:24,893 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:24,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:24,947 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:24,948 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:24,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:24,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:24,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:24,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:24,956 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:24,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:24,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:24 BasicIcfg [2021-10-16 23:06:24,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:24,990 INFO L168 Benchmark]: Toolchain (without parser) took 1701.62 ms. Allocated memory was 181.4 MB in the beginning and 227.5 MB in the end (delta: 46.1 MB). Free memory was 129.1 MB in the beginning and 183.8 MB in the end (delta: -54.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:24,990 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 181.4 MB. Free memory was 147.4 MB in the beginning and 147.3 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:24,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.46 ms. Allocated memory was 181.4 MB in the beginning and 227.5 MB in the end (delta: 46.1 MB). Free memory was 128.8 MB in the beginning and 187.7 MB in the end (delta: -58.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:24,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.20 ms. Allocated memory is still 227.5 MB. Free memory was 187.7 MB in the beginning and 185.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:24,993 INFO L168 Benchmark]: Boogie Preprocessor took 26.93 ms. Allocated memory is still 227.5 MB. Free memory was 185.6 MB in the beginning and 184.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:24,993 INFO L168 Benchmark]: RCFGBuilder took 376.04 ms. Allocated memory is still 227.5 MB. Free memory was 184.3 MB in the beginning and 172.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:24,993 INFO L168 Benchmark]: TraceAbstraction took 820.46 ms. Allocated memory is still 227.5 MB. Free memory was 171.3 MB in the beginning and 183.8 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:24,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 181.4 MB. Free memory was 147.4 MB in the beginning and 147.3 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 432.46 ms. Allocated memory was 181.4 MB in the beginning and 227.5 MB in the end (delta: 46.1 MB). Free memory was 128.8 MB in the beginning and 187.7 MB in the end (delta: -58.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.20 ms. Allocated memory is still 227.5 MB. Free memory was 187.7 MB in the beginning and 185.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.93 ms. Allocated memory is still 227.5 MB. Free memory was 185.6 MB in the beginning and 184.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 376.04 ms. Allocated memory is still 227.5 MB. Free memory was 184.3 MB in the beginning and 172.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 820.46 ms. Allocated memory is still 227.5 MB. Free memory was 171.3 MB in the beginning and 183.8 MB in the end (delta: -12.4 MB). There was no memory consumed. 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: 925]: the program contains a data race the program contains a data race We found a FailurePath: [L921] 0 int glob; VAL [glob=0] [L922] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={7:0}] [L930] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, m={7:0}] [L931] 0 pthread_t id; VAL [glob=0, m={7:0}] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, m={7:0}] [L934] COND FALSE 0 !(\read(i)) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, glob++=27, m={7:0}] [L937] 0 i++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, glob++=27, m={7:0}] [L938] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, glob++=27, m={7:0}] [L925] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, glob++=27, m={7:0}] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 21.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 692.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 219.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 64.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred 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: 11.2ms SsaConstructionTime, 83.4ms SatisfiabilityAnalysisTime, 87.0ms InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:06:25,020 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...