/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:57,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:57,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:57,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:57,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:57,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:58,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:58,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:58,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:58,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:58,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:58,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:58,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:58,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:58,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:58,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:58,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:58,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:58,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:58,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:58,029 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 23:06:58,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:58,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:58,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:58,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:58,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:58,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:58,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:58,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:58,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:58,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:58,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:58,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:58,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:58,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:58,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:58,329 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:58,330 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:58,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2021-10-16 23:06:58,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6797d5fff/8307b57c9d734ebb9c657370918c965e/FLAGe12e8fd3e [2021-10-16 23:06:58,768 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:58,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2021-10-16 23:06:58,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6797d5fff/8307b57c9d734ebb9c657370918c965e/FLAGe12e8fd3e [2021-10-16 23:06:58,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6797d5fff/8307b57c9d734ebb9c657370918c965e [2021-10-16 23:06:58,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:58,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:58,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:58,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:58,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:58,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:58" (1/1) ... [2021-10-16 23:06:58,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f690a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:58, skipping insertion in model container [2021-10-16 23:06:58,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:58" (1/1) ... [2021-10-16 23:06:58,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:58,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:59,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:59,218 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:59,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:59,280 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:59,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59 WrapperNode [2021-10-16 23:06:59,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:59,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:59,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:59,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:59,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:59,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:59,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:59,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:59,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:59,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:59,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:59,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:59,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (1/1) ... [2021-10-16 23:06:59,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:59,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:59,371 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 23:06:59,407 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 23:06:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:59,417 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:59,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:59,418 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 23:06:59,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:59,614 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:59,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:59 BoogieIcfgContainer [2021-10-16 23:06:59,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:59,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:59,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:59,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:59,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:58" (1/3) ... [2021-10-16 23:06:59,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ce830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:59, skipping insertion in model container [2021-10-16 23:06:59,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:59" (2/3) ... [2021-10-16 23:06:59,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ce830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:59, skipping insertion in model container [2021-10-16 23:06:59,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:59" (3/3) ... [2021-10-16 23:06:59,635 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2021-10-16 23:06:59,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:59,639 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:59,639 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:59,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,665 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,666 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:59,669 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:06:59,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:59,712 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 23:06:59,712 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:59,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 171 flow [2021-10-16 23:06:59,775 INFO L129 PetriNetUnfolder]: 1/82 cut-off events. [2021-10-16 23:06:59,776 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:59,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-10-16 23:06:59,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 171 flow [2021-10-16 23:06:59,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 82 transitions, 167 flow [2021-10-16 23:06:59,794 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-10-16 23:06:59,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:59,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:59,794 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:59,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash 128782753, now seen corresponding path program 1 times [2021-10-16 23:06:59,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:59,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10682533] [2021-10-16 23:06:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:59,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:00,163 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 23:07:00,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:00,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10682533] [2021-10-16 23:07:00,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10682533] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:00,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:00,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:00,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097633080] [2021-10-16 23:07:00,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:00,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:00,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:00,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:00,183 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-10-16 23:07:00,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 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 23:07:00,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:00,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-10-16 23:07:00,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:00,302 INFO L129 PetriNetUnfolder]: 91/343 cut-off events. [2021-10-16 23:07:00,302 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:07:00,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 343 events. 91/343 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1468 event pairs, 32 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 497. Up to 164 conditions per place. [2021-10-16 23:07:00,305 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 32 selfloop transitions, 22 changer transitions 4/111 dead transitions. [2021-10-16 23:07:00,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 341 flow [2021-10-16 23:07:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2021-10-16 23:07:00,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7690763052208835 [2021-10-16 23:07:00,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 383 transitions. [2021-10-16 23:07:00,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 383 transitions. [2021-10-16 23:07:00,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:00,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 383 transitions. [2021-10-16 23:07:00,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 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 23:07:00,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,325 INFO L186 Difference]: Start difference. First operand has 85 places, 82 transitions, 167 flow. Second operand 6 states and 383 transitions. [2021-10-16 23:07:00,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 341 flow [2021-10-16 23:07:00,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:07:00,330 INFO L242 Difference]: Finished difference. Result has 94 places, 103 transitions, 316 flow [2021-10-16 23:07:00,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=94, PETRI_TRANSITIONS=103} [2021-10-16 23:07:00,332 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 9 predicate places. [2021-10-16 23:07:00,332 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 103 transitions, 316 flow [2021-10-16 23:07:00,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 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 23:07:00,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:00,333 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:00,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:07:00,334 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:00,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:00,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1198921605, now seen corresponding path program 1 times [2021-10-16 23:07:00,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:00,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2841697] [2021-10-16 23:07:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:00,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:00,460 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 23:07:00,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:00,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2841697] [2021-10-16 23:07:00,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2841697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:00,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:00,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:00,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258611675] [2021-10-16 23:07:00,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:00,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:00,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:00,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:00,466 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 83 [2021-10-16 23:07:00,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 103 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:00,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 83 [2021-10-16 23:07:00,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:00,607 INFO L129 PetriNetUnfolder]: 114/391 cut-off events. [2021-10-16 23:07:00,607 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2021-10-16 23:07:00,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 391 events. 114/391 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1724 event pairs, 17 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 875. Up to 183 conditions per place. [2021-10-16 23:07:00,613 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 37 selfloop transitions, 26 changer transitions 11/139 dead transitions. [2021-10-16 23:07:00,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 139 transitions, 632 flow [2021-10-16 23:07:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2021-10-16 23:07:00,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8795180722891566 [2021-10-16 23:07:00,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2021-10-16 23:07:00,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2021-10-16 23:07:00,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:00,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2021-10-16 23:07:00,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,622 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,622 INFO L186 Difference]: Start difference. First operand has 94 places, 103 transitions, 316 flow. Second operand 6 states and 438 transitions. [2021-10-16 23:07:00,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 139 transitions, 632 flow [2021-10-16 23:07:00,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 139 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:00,628 INFO L242 Difference]: Finished difference. Result has 104 places, 124 transitions, 540 flow [2021-10-16 23:07:00,629 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=540, PETRI_PLACES=104, PETRI_TRANSITIONS=124} [2021-10-16 23:07:00,629 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 19 predicate places. [2021-10-16 23:07:00,629 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 124 transitions, 540 flow [2021-10-16 23:07:00,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:00,630 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:00,630 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:00,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:07:00,630 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:00,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:00,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1740490972, now seen corresponding path program 1 times [2021-10-16 23:07:00,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:00,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119795514] [2021-10-16 23:07:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:00,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:00,826 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 23:07:00,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:00,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119795514] [2021-10-16 23:07:00,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119795514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:00,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:00,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 23:07:00,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505122373] [2021-10-16 23:07:00,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 23:07:00,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 23:07:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-16 23:07:00,830 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 83 [2021-10-16 23:07:00,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 124 transitions, 540 flow. Second operand has 11 states, 11 states have (on average 37.54545454545455) internal successors, (413), 11 states have internal predecessors, (413), 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 23:07:00,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:00,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 83 [2021-10-16 23:07:00,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:01,275 INFO L129 PetriNetUnfolder]: 292/935 cut-off events. [2021-10-16 23:07:01,275 INFO L130 PetriNetUnfolder]: For 699/699 co-relation queries the response was YES. [2021-10-16 23:07:01,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 935 events. 292/935 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5947 event pairs, 68 based on Foata normal form. 12/941 useless extension candidates. Maximal degree in co-relation 1657. Up to 287 conditions per place. [2021-10-16 23:07:01,279 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 147 selfloop transitions, 36 changer transitions 52/269 dead transitions. [2021-10-16 23:07:01,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 269 transitions, 1864 flow [2021-10-16 23:07:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 23:07:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-16 23:07:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 747 transitions. [2021-10-16 23:07:01,281 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-10-16 23:07:01,281 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 747 transitions. [2021-10-16 23:07:01,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 747 transitions. [2021-10-16 23:07:01,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:01,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 747 transitions. [2021-10-16 23:07:01,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 41.5) internal successors, (747), 18 states have internal predecessors, (747), 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 23:07:01,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 83.0) internal successors, (1577), 19 states have internal predecessors, (1577), 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 23:07:01,285 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 83.0) internal successors, (1577), 19 states have internal predecessors, (1577), 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 23:07:01,285 INFO L186 Difference]: Start difference. First operand has 104 places, 124 transitions, 540 flow. Second operand 18 states and 747 transitions. [2021-10-16 23:07:01,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 269 transitions, 1864 flow [2021-10-16 23:07:01,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 269 transitions, 1828 flow, removed 18 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:01,295 INFO L242 Difference]: Finished difference. Result has 135 places, 155 transitions, 963 flow [2021-10-16 23:07:01,295 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=963, PETRI_PLACES=135, PETRI_TRANSITIONS=155} [2021-10-16 23:07:01,295 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 50 predicate places. [2021-10-16 23:07:01,295 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 155 transitions, 963 flow [2021-10-16 23:07:01,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 37.54545454545455) internal successors, (413), 11 states have internal predecessors, (413), 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 23:07:01,296 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:01,296 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:01,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:07:01,296 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:01,297 INFO L82 PathProgramCache]: Analyzing trace with hash -978919090, now seen corresponding path program 1 times [2021-10-16 23:07:01,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:01,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093754535] [2021-10-16 23:07:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:01,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:01,441 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 23:07:01,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:01,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093754535] [2021-10-16 23:07:01,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093754535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:01,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:01,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 23:07:01,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318384440] [2021-10-16 23:07:01,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 23:07:01,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:01,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 23:07:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-16 23:07:01,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 83 [2021-10-16 23:07:01,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 155 transitions, 963 flow. Second operand has 11 states, 11 states have (on average 38.45454545454545) internal successors, (423), 11 states have internal predecessors, (423), 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 23:07:01,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:01,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 83 [2021-10-16 23:07:01,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:01,868 INFO L129 PetriNetUnfolder]: 262/811 cut-off events. [2021-10-16 23:07:01,869 INFO L130 PetriNetUnfolder]: For 1465/1465 co-relation queries the response was YES. [2021-10-16 23:07:01,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3061 conditions, 811 events. 262/811 cut-off events. For 1465/1465 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4784 event pairs, 63 based on Foata normal form. 11/816 useless extension candidates. Maximal degree in co-relation 2906. Up to 285 conditions per place. [2021-10-16 23:07:01,876 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 90 selfloop transitions, 9 changer transitions 122/252 dead transitions. [2021-10-16 23:07:01,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 252 transitions, 2117 flow [2021-10-16 23:07:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 23:07:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-16 23:07:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 537 transitions. [2021-10-16 23:07:01,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5391566265060241 [2021-10-16 23:07:01,879 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 537 transitions. [2021-10-16 23:07:01,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 537 transitions. [2021-10-16 23:07:01,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:01,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 537 transitions. [2021-10-16 23:07:01,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.75) internal successors, (537), 12 states have internal predecessors, (537), 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 23:07:01,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 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 23:07:01,881 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 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 23:07:01,881 INFO L186 Difference]: Start difference. First operand has 135 places, 155 transitions, 963 flow. Second operand 12 states and 537 transitions. [2021-10-16 23:07:01,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 252 transitions, 2117 flow [2021-10-16 23:07:01,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 252 transitions, 2078 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-10-16 23:07:01,895 INFO L242 Difference]: Finished difference. Result has 139 places, 125 transitions, 738 flow [2021-10-16 23:07:01,895 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=738, PETRI_PLACES=139, PETRI_TRANSITIONS=125} [2021-10-16 23:07:01,896 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 54 predicate places. [2021-10-16 23:07:01,896 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 125 transitions, 738 flow [2021-10-16 23:07:01,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.45454545454545) internal successors, (423), 11 states have internal predecessors, (423), 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 23:07:01,896 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:01,896 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:01,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:07:01,897 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:07:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:01,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2005819061, now seen corresponding path program 1 times [2021-10-16 23:07:01,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:01,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447834770] [2021-10-16 23:07:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:01,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:02,036 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 23:07:02,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:02,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447834770] [2021-10-16 23:07:02,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447834770] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:02,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:02,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:07:02,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58914340] [2021-10-16 23:07:02,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 23:07:02,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 23:07:02,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-16 23:07:02,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-10-16 23:07:02,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 125 transitions, 738 flow. Second operand has 7 states, 7 states have (on average 57.57142857142857) internal successors, (403), 7 states have internal predecessors, (403), 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 23:07:02,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:02,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-10-16 23:07:02,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:02,100 INFO L129 PetriNetUnfolder]: 1/103 cut-off events. [2021-10-16 23:07:02,101 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2021-10-16 23:07:02,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 103 events. 1/103 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 1 based on Foata normal form. 8/111 useless extension candidates. Maximal degree in co-relation 242. Up to 16 conditions per place. [2021-10-16 23:07:02,101 INFO L132 encePairwiseOnDemand]: 76/83 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2021-10-16 23:07:02,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 75 transitions, 310 flow [2021-10-16 23:07:02,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 353 transitions. [2021-10-16 23:07:02,102 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7088353413654619 [2021-10-16 23:07:02,102 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 353 transitions. [2021-10-16 23:07:02,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 353 transitions. [2021-10-16 23:07:02,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:02,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 353 transitions. [2021-10-16 23:07:02,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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 23:07:02,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,104 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:02,104 INFO L186 Difference]: Start difference. First operand has 139 places, 125 transitions, 738 flow. Second operand 6 states and 353 transitions. [2021-10-16 23:07:02,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 75 transitions, 310 flow [2021-10-16 23:07:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 75 transitions, 212 flow, removed 19 selfloop flow, removed 38 redundant places. [2021-10-16 23:07:02,105 INFO L242 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2021-10-16 23:07:02,106 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2021-10-16 23:07:02,106 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 3 predicate places. [2021-10-16 23:07:02,106 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2021-10-16 23:07:02,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.57142857142857) internal successors, (403), 7 states have internal predecessors, (403), 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 23:07:02,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:02,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:07:02,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:02,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:07:02,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:07:02,113 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:07:02,113 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:07:02,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:07:02 BasicIcfg [2021-10-16 23:07:02,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:07:02,115 INFO L168 Benchmark]: Toolchain (without parser) took 3319.81 ms. Allocated memory was 226.5 MB in the beginning and 303.0 MB in the end (delta: 76.5 MB). Free memory was 174.0 MB in the beginning and 219.3 MB in the end (delta: -45.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,115 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 226.5 MB. Free memory was 192.1 MB in the beginning and 192.0 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:07:02,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.72 ms. Allocated memory was 226.5 MB in the beginning and 303.0 MB in the end (delta: 76.5 MB). Free memory was 173.8 MB in the beginning and 259.5 MB in the end (delta: -85.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.16 ms. Allocated memory is still 303.0 MB. Free memory was 259.5 MB in the beginning and 257.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,116 INFO L168 Benchmark]: Boogie Preprocessor took 17.61 ms. Allocated memory is still 303.0 MB. Free memory was 257.0 MB in the beginning and 255.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,116 INFO L168 Benchmark]: RCFGBuilder took 275.99 ms. Allocated memory is still 303.0 MB. Free memory was 255.6 MB in the beginning and 242.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,117 INFO L168 Benchmark]: TraceAbstraction took 2497.28 ms. Allocated memory is still 303.0 MB. Free memory was 242.3 MB in the beginning and 219.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:07:02,118 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 226.5 MB. Free memory was 192.1 MB in the beginning and 192.0 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 484.72 ms. Allocated memory was 226.5 MB in the beginning and 303.0 MB in the end (delta: 76.5 MB). Free memory was 173.8 MB in the beginning and 259.5 MB in the end (delta: -85.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.16 ms. Allocated memory is still 303.0 MB. Free memory was 259.5 MB in the beginning and 257.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.61 ms. Allocated memory is still 303.0 MB. Free memory was 257.0 MB in the beginning and 255.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 275.99 ms. Allocated memory is still 303.0 MB. Free memory was 255.6 MB in the beginning and 242.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2497.28 ms. Allocated memory is still 303.0 MB. Free memory was 242.3 MB in the beginning and 219.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 22.8 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 - PositiveResult [Line: 1012]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 989]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2406.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1306.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 68.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 364 SDslu, 54 SDs, 0 SdLazy, 974 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 453.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 438.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=3, InterpolantAutomatonStates: 48, 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: 25.0ms SsaConstructionTime, 126.9ms SatisfiabilityAnalysisTime, 709.5ms InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 1498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 23:07:02,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...