/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/05-lval_ls_03-fld_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:47:55,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:47:55,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:47:55,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-19 14:47:55,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:47:55,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:47:55,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:47:55,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:47:55,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:47:55,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:47:55,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:47:55,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:47:55,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:47:55,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:47:55,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:47:55,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:47:55,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:47:55,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:47:55,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:47:55,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:47:55,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-19 14:47:55,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:47:55,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:47:55,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:47:55,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:47:55,454 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:47:55,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:47:55,454 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:47:55,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:47:55,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:47:55,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:47:55,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:47:55,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:47:55,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:47:55,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:55,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:47:55,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:47:55,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:47:55,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:47:55,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:47:55,458 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:47:55,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:47:55,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:47:55,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:47:55,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:47:55,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:47:55,639 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:47:55,639 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:47:55,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_03-fld_rc.i [2021-10-19 14:47:55,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ffc7ec9/be36d718931d4dddb58504fef7048878/FLAG33fb4405b [2021-10-19 14:47:56,079 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:47:56,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_03-fld_rc.i [2021-10-19 14:47:56,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ffc7ec9/be36d718931d4dddb58504fef7048878/FLAG33fb4405b [2021-10-19 14:47:56,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ffc7ec9/be36d718931d4dddb58504fef7048878 [2021-10-19 14:47:56,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:47:56,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:47:56,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:56,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:47:56,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:47:56,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b84906e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56, skipping insertion in model container [2021-10-19 14:47:56,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:47:56,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:47:56,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:56,369 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:47:56,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:56,445 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:47:56,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56 WrapperNode [2021-10-19 14:47:56,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:56,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:56,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:47:56,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:47:56,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:56,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:47:56,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:47:56,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:47:56,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:47:56,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:47:56,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:47:56,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:47:56,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (1/1) ... [2021-10-19 14:47:56,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:56,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:47:56,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-19 14:47:56,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-19 14:47:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:47:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-19 14:47:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:47:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-19 14:47:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-19 14:47:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:47:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:47:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:47:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:47:56,584 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-19 14:47:56,791 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:47:56,791 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-19 14:47:56,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:56 BoogieIcfgContainer [2021-10-19 14:47:56,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:47:56,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:47:56,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:47:56,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:47:56,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:47:56" (1/3) ... [2021-10-19 14:47:56,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9257b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:56, skipping insertion in model container [2021-10-19 14:47:56,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:56" (2/3) ... [2021-10-19 14:47:56,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9257b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:56, skipping insertion in model container [2021-10-19 14:47:56,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:56" (3/3) ... [2021-10-19 14:47:56,800 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_03-fld_rc.i [2021-10-19 14:47:56,803 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:47:56,804 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-19 14:47:56,804 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:47:56,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,823 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,823 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,823 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,824 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,825 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,826 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,827 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,829 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,829 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,830 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:56,833 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-19 14:47:56,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:47:56,867 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-19 14:47:56,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-19 14:47:56,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 131 flow [2021-10-19 14:47:56,895 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-10-19 14:47:56,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:56,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-19 14:47:56,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 131 flow [2021-10-19 14:47:56,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 62 transitions, 127 flow [2021-10-19 14:47:56,906 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-10-19 14:47:56,906 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:56,907 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:56,907 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:56,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:56,911 INFO L82 PathProgramCache]: Analyzing trace with hash -544417527, now seen corresponding path program 1 times [2021-10-19 14:47:56,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:56,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366741415] [2021-10-19 14:47:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:56,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:57,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:57,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366741415] [2021-10-19 14:47:57,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366741415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:57,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:57,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:57,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505748553] [2021-10-19 14:47:57,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:57,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:57,129 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 63 [2021-10-19 14:47:57,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:57,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 63 [2021-10-19 14:47:57,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:57,248 INFO L129 PetriNetUnfolder]: 37/222 cut-off events. [2021-10-19 14:47:57,248 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:57,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 222 events. 37/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 930 event pairs, 15 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 288. Up to 53 conditions per place. [2021-10-19 14:47:57,252 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 16 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2021-10-19 14:47:57,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 191 flow [2021-10-19 14:47:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2021-10-19 14:47:57,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9365079365079365 [2021-10-19 14:47:57,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2021-10-19 14:47:57,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2021-10-19 14:47:57,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:57,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2021-10-19 14:47:57,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,283 INFO L186 Difference]: Start difference. First operand has 66 places, 62 transitions, 127 flow. Second operand 3 states and 177 transitions. [2021-10-19 14:47:57,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 191 flow [2021-10-19 14:47:57,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 72 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:47:57,292 INFO L242 Difference]: Finished difference. Result has 69 places, 68 transitions, 178 flow [2021-10-19 14:47:57,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2021-10-19 14:47:57,294 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2021-10-19 14:47:57,294 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 178 flow [2021-10-19 14:47:57,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,295 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:57,295 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:57,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:47:57,298 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:57,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1545984252, now seen corresponding path program 1 times [2021-10-19 14:47:57,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:57,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010457076] [2021-10-19 14:47:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:57,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:57,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:57,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010457076] [2021-10-19 14:47:57,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010457076] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:57,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:57,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:57,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32072345] [2021-10-19 14:47:57,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:57,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:57,366 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 63 [2021-10-19 14:47:57,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:57,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 63 [2021-10-19 14:47:57,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:57,440 INFO L129 PetriNetUnfolder]: 55/297 cut-off events. [2021-10-19 14:47:57,440 INFO L130 PetriNetUnfolder]: For 85/88 co-relation queries the response was YES. [2021-10-19 14:47:57,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 297 events. 55/297 cut-off events. For 85/88 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1483 event pairs, 23 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 496. Up to 102 conditions per place. [2021-10-19 14:47:57,444 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 23 selfloop transitions, 7 changer transitions 1/78 dead transitions. [2021-10-19 14:47:57,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 278 flow [2021-10-19 14:47:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:57,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2021-10-19 14:47:57,449 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-19 14:47:57,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:57,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,452 INFO L186 Difference]: Start difference. First operand has 69 places, 68 transitions, 178 flow. Second operand 3 states and 168 transitions. [2021-10-19 14:47:57,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 278 flow [2021-10-19 14:47:57,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 78 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:57,456 INFO L242 Difference]: Finished difference. Result has 71 places, 73 transitions, 222 flow [2021-10-19 14:47:57,456 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2021-10-19 14:47:57,457 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2021-10-19 14:47:57,457 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 222 flow [2021-10-19 14:47:57,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,457 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:57,458 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] [2021-10-19 14:47:57,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:47:57,458 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:57,461 INFO L82 PathProgramCache]: Analyzing trace with hash 2079244551, now seen corresponding path program 1 times [2021-10-19 14:47:57,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:57,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606126703] [2021-10-19 14:47:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:57,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:57,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:57,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606126703] [2021-10-19 14:47:57,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606126703] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:57,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:57,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:57,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875813044] [2021-10-19 14:47:57,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:57,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:57,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 63 [2021-10-19 14:47:57,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:57,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 63 [2021-10-19 14:47:57,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:57,590 INFO L129 PetriNetUnfolder]: 57/290 cut-off events. [2021-10-19 14:47:57,590 INFO L130 PetriNetUnfolder]: For 145/147 co-relation queries the response was YES. [2021-10-19 14:47:57,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 290 events. 57/290 cut-off events. For 145/147 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1433 event pairs, 17 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 568. Up to 100 conditions per place. [2021-10-19 14:47:57,592 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 20 selfloop transitions, 7 changer transitions 10/84 dead transitions. [2021-10-19 14:47:57,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 84 transitions, 344 flow [2021-10-19 14:47:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:57,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:57,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2021-10-19 14:47:57,594 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-19 14:47:57,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:57,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2021-10-19 14:47:57,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,597 INFO L186 Difference]: Start difference. First operand has 71 places, 73 transitions, 222 flow. Second operand 3 states and 168 transitions. [2021-10-19 14:47:57,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 84 transitions, 344 flow [2021-10-19 14:47:57,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:57,601 INFO L242 Difference]: Finished difference. Result has 73 places, 72 transitions, 240 flow [2021-10-19 14:47:57,601 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2021-10-19 14:47:57,601 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2021-10-19 14:47:57,602 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 240 flow [2021-10-19 14:47:57,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:57,602 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:57,602 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] [2021-10-19 14:47:57,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:47:57,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:57,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:57,604 INFO L82 PathProgramCache]: Analyzing trace with hash -372868274, now seen corresponding path program 1 times [2021-10-19 14:47:57,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:57,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975431003] [2021-10-19 14:47:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:57,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:47:57,637 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-19 14:47:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:47:57,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-19 14:47:57,672 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-19 14:47:57,672 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:47:57,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:57,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:47:57,680 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:47:57,680 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:47:57,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:47:57 BasicIcfg [2021-10-19 14:47:57,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:47:57,704 INFO L168 Benchmark]: Toolchain (without parser) took 1597.15 ms. Allocated memory was 204.5 MB in the beginning and 271.6 MB in the end (delta: 67.1 MB). Free memory was 153.3 MB in the beginning and 217.7 MB in the end (delta: -64.4 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,704 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 204.5 MB. Free memory is still 170.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:47:57,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.69 ms. Allocated memory is still 204.5 MB. Free memory was 153.2 MB in the beginning and 171.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.28 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 169.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,705 INFO L168 Benchmark]: Boogie Preprocessor took 34.26 ms. Allocated memory is still 204.5 MB. Free memory was 169.9 MB in the beginning and 168.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,706 INFO L168 Benchmark]: RCFGBuilder took 266.54 ms. Allocated memory is still 204.5 MB. Free memory was 168.4 MB in the beginning and 157.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,706 INFO L168 Benchmark]: TraceAbstraction took 909.45 ms. Allocated memory was 204.5 MB in the beginning and 271.6 MB in the end (delta: 67.1 MB). Free memory was 156.8 MB in the beginning and 217.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:57,708 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 204.5 MB. Free memory is still 170.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 338.69 ms. Allocated memory is still 204.5 MB. Free memory was 153.2 MB in the beginning and 171.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.28 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 169.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.26 ms. Allocated memory is still 204.5 MB. Free memory was 169.9 MB in the beginning and 168.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 266.54 ms. Allocated memory is still 204.5 MB. Free memory was 168.4 MB in the beginning and 157.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 909.45 ms. Allocated memory was 204.5 MB in the beginning and 271.6 MB in the end (delta: 67.1 MB). Free memory was 156.8 MB in the beginning and 217.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 6.7 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: 689]: the program contains a data race the program contains a data race We found a FailurePath: [L672] 0 int glob; VAL [glob=0] [L673-L676] 0 struct { pthread_mutex_t x; pthread_mutex_t y; } m; VAL [glob=0, m={3:0}] [L686] 0 pthread_t id; VAL [glob=0, m={3:0}] [L687] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, m={3:0}] [L679] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={3:0}] [L689] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={3:0}] [L679] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=49, m={3:0}] [L689] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=49, m={3:0}] - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 679]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 679]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 817.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 331.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 16 SDslu, 0 SDs, 0 SdLazy, 54 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=3, InterpolantAutomatonStates: 9, 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: 18.2ms SsaConstructionTime, 97.4ms SatisfiabilityAnalysisTime, 148.3ms InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 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! [2021-10-19 14:47:57,747 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...