/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:06,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:06,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:06,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:06,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:06,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:06,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:06,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:06,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:06,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:06,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:06,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:06,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:06,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:06,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:06,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:06,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:06,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:06,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:06,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:06,849 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 23:06:06,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:06,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:06,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:06,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:06,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:06,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:06,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:06,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:06,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:06,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:06,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:06,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:06,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:06,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:06,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:06,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:07,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:07,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:07,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:07,065 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:07,067 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:07,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2021-10-16 23:06:07,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb75b763/f6f31d622ded441cb9dace1349aa5d88/FLAG692e83473 [2021-10-16 23:06:07,501 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:07,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2021-10-16 23:06:07,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb75b763/f6f31d622ded441cb9dace1349aa5d88/FLAG692e83473 [2021-10-16 23:06:07,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb75b763/f6f31d622ded441cb9dace1349aa5d88 [2021-10-16 23:06:07,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:07,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:07,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:07,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:07,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:07,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:07,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e69556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07, skipping insertion in model container [2021-10-16 23:06:07,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:07,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:07,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:07,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:07,875 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:07,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:07,956 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:07,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07 WrapperNode [2021-10-16 23:06:07,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:07,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:07,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:07,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:07,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:07,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:08,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:08,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:08,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:08,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:08,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:08,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:08,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:08,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (1/1) ... [2021-10-16 23:06:08,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:08,083 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 23:06:08,103 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 23:06:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:08,120 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 23:06:08,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:08,349 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 23:06:08,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:08 BoogieIcfgContainer [2021-10-16 23:06:08,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:08,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:08,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:08,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:08,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:07" (1/3) ... [2021-10-16 23:06:08,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78397df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:08, skipping insertion in model container [2021-10-16 23:06:08,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:07" (2/3) ... [2021-10-16 23:06:08,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78397df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:08, skipping insertion in model container [2021-10-16 23:06:08,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:08" (3/3) ... [2021-10-16 23:06:08,355 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2021-10-16 23:06:08,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:08,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 23:06:08,359 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,376 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,377 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,378 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,379 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,380 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,383 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:08,387 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:06:08,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:08,422 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 23:06:08,423 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-16 23:06:08,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 155 flow [2021-10-16 23:06:08,460 INFO L129 PetriNetUnfolder]: 2/74 cut-off events. [2021-10-16 23:06:08,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:08,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-10-16 23:06:08,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 75 transitions, 155 flow [2021-10-16 23:06:08,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 151 flow [2021-10-16 23:06:08,480 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-10-16 23:06:08,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:08,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:08,481 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] [2021-10-16 23:06:08,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 23:06:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:08,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1641872943, now seen corresponding path program 1 times [2021-10-16 23:06:08,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:08,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309317747] [2021-10-16 23:06:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:08,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:08,637 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 23:06:08,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:08,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309317747] [2021-10-16 23:06:08,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309317747] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:08,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:08,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:08,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734917193] [2021-10-16 23:06:08,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 23:06:08,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 23:06:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 23:06:08,656 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 75 [2021-10-16 23:06:08,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 151 flow. Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 23:06:08,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:08,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 75 [2021-10-16 23:06:08,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:08,672 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-10-16 23:06:08,672 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:08,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 2/60 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-16 23:06:08,677 INFO L132 encePairwiseOnDemand]: 72/75 looper letters, 0 selfloop transitions, 0 changer transitions 0/60 dead transitions. [2021-10-16 23:06:08,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 60 transitions, 123 flow [2021-10-16 23:06:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 23:06:08,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-16 23:06:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 147 transitions. [2021-10-16 23:06:08,684 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.98 [2021-10-16 23:06:08,685 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 147 transitions. [2021-10-16 23:06:08,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 147 transitions. [2021-10-16 23:06:08,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:08,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 147 transitions. [2021-10-16 23:06:08,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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 23:06:08,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 23:06:08,691 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 23:06:08,692 INFO L186 Difference]: Start difference. First operand has 76 places, 74 transitions, 151 flow. Second operand 2 states and 147 transitions. [2021-10-16 23:06:08,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 60 transitions, 123 flow [2021-10-16 23:06:08,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:08,696 INFO L242 Difference]: Finished difference. Result has 64 places, 60 transitions, 122 flow [2021-10-16 23:06:08,698 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=122, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2021-10-16 23:06:08,698 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2021-10-16 23:06:08,698 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 122 flow [2021-10-16 23:06:08,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 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 23:06:08,699 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:08,699 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 23:06:08,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:08,699 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 23:06:08,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:08,700 INFO L82 PathProgramCache]: Analyzing trace with hash -897147381, now seen corresponding path program 1 times [2021-10-16 23:06:08,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:08,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964108495] [2021-10-16 23:06:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:08,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:08,765 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 23:06:08,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:08,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964108495] [2021-10-16 23:06:08,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964108495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:08,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:08,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:08,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489694728] [2021-10-16 23:06:08,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:08,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:08,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:08,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:08,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2021-10-16 23:06:08,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 23:06:08,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:08,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2021-10-16 23:06:08,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:08,845 INFO L129 PetriNetUnfolder]: 29/164 cut-off events. [2021-10-16 23:06:08,845 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:08,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 164 events. 29/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 588 event pairs, 14 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 237. Up to 54 conditions per place. [2021-10-16 23:06:08,848 INFO L132 encePairwiseOnDemand]: 69/75 looper letters, 11 selfloop transitions, 5 changer transitions 1/66 dead transitions. [2021-10-16 23:06:08,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 168 flow [2021-10-16 23:06:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2021-10-16 23:06:08,853 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8533333333333334 [2021-10-16 23:06:08,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:08,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 23:06:08,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 23:06:08,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 23:06:08,858 INFO L186 Difference]: Start difference. First operand has 64 places, 60 transitions, 122 flow. Second operand 3 states and 192 transitions. [2021-10-16 23:06:08,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 168 flow [2021-10-16 23:06:08,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:06:08,862 INFO L242 Difference]: Finished difference. Result has 68 places, 64 transitions, 160 flow [2021-10-16 23:06:08,862 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2021-10-16 23:06:08,862 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2021-10-16 23:06:08,862 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 160 flow [2021-10-16 23:06:08,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 23:06:08,863 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:08,863 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:08,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:08,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 23:06:08,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:08,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2084890508, now seen corresponding path program 1 times [2021-10-16 23:06:08,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:08,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030389156] [2021-10-16 23:06:08,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:08,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:08,904 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 23:06:08,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:08,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030389156] [2021-10-16 23:06:08,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030389156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:08,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:08,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:08,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013292275] [2021-10-16 23:06:08,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:08,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:08,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:08,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:08,907 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2021-10-16 23:06:08,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 23:06:08,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:08,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2021-10-16 23:06:08,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:08,946 INFO L129 PetriNetUnfolder]: 37/205 cut-off events. [2021-10-16 23:06:08,946 INFO L130 PetriNetUnfolder]: For 60/62 co-relation queries the response was YES. [2021-10-16 23:06:08,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 205 events. 37/205 cut-off events. For 60/62 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 767 event pairs, 15 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 373. Up to 63 conditions per place. [2021-10-16 23:06:08,948 INFO L132 encePairwiseOnDemand]: 69/75 looper letters, 11 selfloop transitions, 5 changer transitions 6/71 dead transitions. [2021-10-16 23:06:08,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 228 flow [2021-10-16 23:06:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:08,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2021-10-16 23:06:08,949 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8533333333333334 [2021-10-16 23:06:08,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:08,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2021-10-16 23:06:08,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 23:06:08,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 23:06:08,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 23:06:08,951 INFO L186 Difference]: Start difference. First operand has 68 places, 64 transitions, 160 flow. Second operand 3 states and 192 transitions. [2021-10-16 23:06:08,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 228 flow [2021-10-16 23:06:08,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 71 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:08,953 INFO L242 Difference]: Finished difference. Result has 70 places, 64 transitions, 176 flow [2021-10-16 23:06:08,953 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2021-10-16 23:06:08,953 INFO L334 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2021-10-16 23:06:08,954 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 176 flow [2021-10-16 23:06:08,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 23:06:08,954 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:08,954 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] [2021-10-16 23:06:08,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:08,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-16 23:06:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1807456271, now seen corresponding path program 1 times [2021-10-16 23:06:08,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:08,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621117870] [2021-10-16 23:06:08,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:08,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:08,976 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:09,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:09,006 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:09,007 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:09,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:09,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:09,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:09,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:09,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:06:09,014 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:09,014 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:09,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:09 BasicIcfg [2021-10-16 23:06:09,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:09,037 INFO L168 Benchmark]: Toolchain (without parser) took 1502.11 ms. Allocated memory is still 194.0 MB. Free memory was 142.1 MB in the beginning and 68.5 MB in the end (delta: 73.6 MB). Peak memory consumption was 73.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,037 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 194.0 MB. Free memory was 160.1 MB in the beginning and 159.9 MB in the end (delta: 143.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:09,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.47 ms. Allocated memory is still 194.0 MB. Free memory was 141.9 MB in the beginning and 153.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.16 ms. Allocated memory is still 194.0 MB. Free memory was 153.4 MB in the beginning and 150.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,039 INFO L168 Benchmark]: Boogie Preprocessor took 36.51 ms. Allocated memory is still 194.0 MB. Free memory was 150.8 MB in the beginning and 149.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,039 INFO L168 Benchmark]: RCFGBuilder took 298.06 ms. Allocated memory is still 194.0 MB. Free memory was 149.7 MB in the beginning and 137.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,039 INFO L168 Benchmark]: TraceAbstraction took 684.42 ms. Allocated memory is still 194.0 MB. Free memory was 136.6 MB in the beginning and 68.5 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:09,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 194.0 MB. Free memory was 160.1 MB in the beginning and 159.9 MB in the end (delta: 143.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 421.47 ms. Allocated memory is still 194.0 MB. Free memory was 141.9 MB in the beginning and 153.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.16 ms. Allocated memory is still 194.0 MB. Free memory was 153.4 MB in the beginning and 150.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.51 ms. Allocated memory is still 194.0 MB. Free memory was 150.8 MB in the beginning and 149.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 298.06 ms. Allocated memory is still 194.0 MB. Free memory was 149.7 MB in the beginning and 137.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 684.42 ms. Allocated memory is still 194.0 MB. Free memory was 136.6 MB in the beginning and 68.5 MB in the end (delta: 68.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 922]: the program contains a data race the program contains a data race We found a FailurePath: [L911] 0 int glob; VAL [glob=0] [L912] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex={3:0}] [L913] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [bad={5:0}, glob=0, mutex={3:0}] [L927] 0 pthread_t id; VAL [bad={5:0}, glob=0, mutex={3:0}] [L928] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, bad={5:0}, glob=0, mutex={3:0}] [L929] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, bad={5:0}, glob=1, glob++=25, glob++=27, glob++=0, mutex={3:0}] [L922] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={5:0}, glob=1, glob++=25, glob++=27, glob++=0, mutex={3:0}] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 928]: 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, 93 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 596.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 185.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=3, InterpolantAutomatonStates: 8, 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: 10.2ms SsaConstructionTime, 56.7ms SatisfiabilityAnalysisTime, 132.3ms InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 23:06:09,066 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...