/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:29,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:29,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:29,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 23:06:29,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 23:06:29,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 23:06:29,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 23:06:29,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 23:06:29,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 23:06:29,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 23:06:29,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 23:06:29,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 23:06:29,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:29,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:29,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:29,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:29,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:29,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:29,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:29,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:29,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:29,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:29,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:29,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:29,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 23:06:29,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 23:06:29,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 23:06:29,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 23:06:29,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 23:06:29,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 23:06:29,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 23:06:29,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 23:06:29,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 23:06:29,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 23:06:29,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 23:06:29,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 23:06:29,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 23:06:29,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 23:06:29,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:29,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:29,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:29,269 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 23:06:29,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:29,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:29,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:29,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:29,288 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:29,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:29,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:29,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:29,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:29,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:29,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:29,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:29,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:29,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:29,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:29,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:29,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:29,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:29,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:29,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:29,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:29,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:29,515 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:29,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i [2021-10-16 23:06:29,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282e7e320/452281c9d71140babf1460fbc41632d7/FLAGfad870e41 [2021-10-16 23:06:30,001 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:30,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i [2021-10-16 23:06:30,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282e7e320/452281c9d71140babf1460fbc41632d7/FLAGfad870e41 [2021-10-16 23:06:30,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282e7e320/452281c9d71140babf1460fbc41632d7 [2021-10-16 23:06:30,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:30,036 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:30,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:30,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:30,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:30,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6b67b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30, skipping insertion in model container [2021-10-16 23:06:30,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:30,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:30,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:30,402 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:30,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:30,485 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:30,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30 WrapperNode [2021-10-16 23:06:30,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:30,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:30,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:30,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:30,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:30,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:30,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:30,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:30,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:30,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:30,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:30,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:30,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (1/1) ... [2021-10-16 23:06:30,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:30,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:30,589 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 23:06:30,605 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 23:06:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:06:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:30,623 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 23:06:30,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:30,838 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:30,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:30 BoogieIcfgContainer [2021-10-16 23:06:30,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:30,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:30,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:30,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:30,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:30" (1/3) ... [2021-10-16 23:06:30,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad4e142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:30, skipping insertion in model container [2021-10-16 23:06:30,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:30" (2/3) ... [2021-10-16 23:06:30,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad4e142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:30, skipping insertion in model container [2021-10-16 23:06:30,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:30" (3/3) ... [2021-10-16 23:06:30,859 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_24-sound_lock.i [2021-10-16 23:06:30,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:30,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:30,863 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:30,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:30,900 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 23:06:30,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:30,949 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 23:06:30,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:30,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2021-10-16 23:06:31,013 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-10-16 23:06:31,013 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:31,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 1/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2021-10-16 23:06:31,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2021-10-16 23:06:31,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2021-10-16 23:06:31,038 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-10-16 23:06:31,038 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:31,038 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:31,039 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] [2021-10-16 23:06:31,040 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 23:06:31,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:31,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1184509093, now seen corresponding path program 1 times [2021-10-16 23:06:31,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:31,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446404168] [2021-10-16 23:06:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:31,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:31,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:31,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446404168] [2021-10-16 23:06:31,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446404168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:31,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:31,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:31,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177853521] [2021-10-16 23:06:31,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:31,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:31,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:31,274 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 74 [2021-10-16 23:06:31,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:31,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 74 [2021-10-16 23:06:31,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:31,349 INFO L129 PetriNetUnfolder]: 30/186 cut-off events. [2021-10-16 23:06:31,349 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:31,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 186 events. 30/186 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 673 event pairs, 14 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 226. Up to 54 conditions per place. [2021-10-16 23:06:31,351 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 11 selfloop transitions, 5 changer transitions 1/71 dead transitions. [2021-10-16 23:06:31,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 179 flow [2021-10-16 23:06:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2021-10-16 23:06:31,359 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9324324324324325 [2021-10-16 23:06:31,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:31,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,381 INFO L186 Difference]: Start difference. First operand has 68 places, 65 transitions, 133 flow. Second operand 3 states and 207 transitions. [2021-10-16 23:06:31,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 179 flow [2021-10-16 23:06:31,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 71 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:31,386 INFO L242 Difference]: Finished difference. Result has 71 places, 69 transitions, 170 flow [2021-10-16 23:06:31,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2021-10-16 23:06:31,387 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2021-10-16 23:06:31,388 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 170 flow [2021-10-16 23:06:31,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:31,388 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:31,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:31,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:31,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:31,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1133990821, now seen corresponding path program 1 times [2021-10-16 23:06:31,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:31,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968001653] [2021-10-16 23:06:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:31,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:31,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:31,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968001653] [2021-10-16 23:06:31,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968001653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:31,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:31,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:06:31,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116324770] [2021-10-16 23:06:31,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:06:31,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:31,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:06:31,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:06:31,428 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 74 [2021-10-16 23:06:31,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:31,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 74 [2021-10-16 23:06:31,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:31,472 INFO L129 PetriNetUnfolder]: 34/203 cut-off events. [2021-10-16 23:06:31,473 INFO L130 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2021-10-16 23:06:31,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 203 events. 34/203 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 761 event pairs, 11 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 326. Up to 56 conditions per place. [2021-10-16 23:06:31,474 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 11 selfloop transitions, 5 changer transitions 6/76 dead transitions. [2021-10-16 23:06:31,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 238 flow [2021-10-16 23:06:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:06:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:06:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2021-10-16 23:06:31,476 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9324324324324325 [2021-10-16 23:06:31,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:31,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2021-10-16 23:06:31,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,479 INFO L186 Difference]: Start difference. First operand has 71 places, 69 transitions, 170 flow. Second operand 3 states and 207 transitions. [2021-10-16 23:06:31,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 238 flow [2021-10-16 23:06:31,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:31,482 INFO L242 Difference]: Finished difference. Result has 73 places, 69 transitions, 186 flow [2021-10-16 23:06:31,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2021-10-16 23:06:31,483 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 5 predicate places. [2021-10-16 23:06:31,483 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 186 flow [2021-10-16 23:06:31,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,483 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:31,483 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:31,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:31,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:31,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:31,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2087111159, now seen corresponding path program 1 times [2021-10-16 23:06:31,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:31,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759176328] [2021-10-16 23:06:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:31,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:31,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:31,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759176328] [2021-10-16 23:06:31,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759176328] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:31,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:31,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 23:06:31,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022313136] [2021-10-16 23:06:31,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 23:06:31,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 23:06:31,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 23:06:31,540 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 74 [2021-10-16 23:06:31,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:31,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 74 [2021-10-16 23:06:31,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:31,592 INFO L129 PetriNetUnfolder]: 14/251 cut-off events. [2021-10-16 23:06:31,593 INFO L130 PetriNetUnfolder]: For 55/56 co-relation queries the response was YES. [2021-10-16 23:06:31,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 251 events. 14/251 cut-off events. For 55/56 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1149 event pairs, 5 based on Foata normal form. 2/249 useless extension candidates. Maximal degree in co-relation 278. Up to 31 conditions per place. [2021-10-16 23:06:31,594 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 9 selfloop transitions, 5 changer transitions 7/76 dead transitions. [2021-10-16 23:06:31,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 240 flow [2021-10-16 23:06:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 23:06:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-16 23:06:31,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2021-10-16 23:06:31,596 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8837837837837837 [2021-10-16 23:06:31,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 327 transitions. [2021-10-16 23:06:31,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 327 transitions. [2021-10-16 23:06:31,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:31,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 327 transitions. [2021-10-16 23:06:31,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,599 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,599 INFO L186 Difference]: Start difference. First operand has 73 places, 69 transitions, 186 flow. Second operand 5 states and 327 transitions. [2021-10-16 23:06:31,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 240 flow [2021-10-16 23:06:31,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:31,602 INFO L242 Difference]: Finished difference. Result has 77 places, 68 transitions, 190 flow [2021-10-16 23:06:31,602 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2021-10-16 23:06:31,602 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2021-10-16 23:06:31,602 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 190 flow [2021-10-16 23:06:31,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:31,602 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:31,603 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:31,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:31,603 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:31,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:31,603 INFO L82 PathProgramCache]: Analyzing trace with hash -259720581, now seen corresponding path program 1 times [2021-10-16 23:06:31,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:31,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013979493] [2021-10-16 23:06:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:31,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:31,620 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:31,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:31,654 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:31,655 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:31,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:31,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:31,657 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:31,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:06:31,664 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:31,664 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:31,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:31 BasicIcfg [2021-10-16 23:06:31,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:31,701 INFO L168 Benchmark]: Toolchain (without parser) took 1664.27 ms. Allocated memory was 198.2 MB in the beginning and 259.0 MB in the end (delta: 60.8 MB). Free memory was 139.8 MB in the beginning and 180.1 MB in the end (delta: -40.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,702 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 198.2 MB. Free memory is still 157.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:31,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.57 ms. Allocated memory was 198.2 MB in the beginning and 259.0 MB in the end (delta: 60.8 MB). Free memory was 139.5 MB in the beginning and 212.8 MB in the end (delta: -73.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.74 ms. Allocated memory is still 259.0 MB. Free memory was 212.8 MB in the beginning and 210.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,703 INFO L168 Benchmark]: Boogie Preprocessor took 26.98 ms. Allocated memory is still 259.0 MB. Free memory was 210.7 MB in the beginning and 209.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,703 INFO L168 Benchmark]: RCFGBuilder took 274.12 ms. Allocated memory is still 259.0 MB. Free memory was 209.3 MB in the beginning and 197.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,703 INFO L168 Benchmark]: TraceAbstraction took 859.64 ms. Allocated memory is still 259.0 MB. Free memory was 197.1 MB in the beginning and 180.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:31,705 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 198.2 MB. Free memory is still 157.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 447.57 ms. Allocated memory was 198.2 MB in the beginning and 259.0 MB in the end (delta: 60.8 MB). Free memory was 139.5 MB in the beginning and 212.8 MB in the end (delta: -73.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.74 ms. Allocated memory is still 259.0 MB. Free memory was 212.8 MB in the beginning and 210.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.98 ms. Allocated memory is still 259.0 MB. Free memory was 210.7 MB in the beginning and 209.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 274.12 ms. Allocated memory is still 259.0 MB. Free memory was 209.3 MB in the beginning and 197.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 859.64 ms. Allocated memory is still 259.0 MB. Free memory was 197.1 MB in the beginning and 180.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.4 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: 916]: the program contains a data race the program contains a data race We found a FailurePath: [L911] 0 int myglobal; VAL [myglobal=0] [L912] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, myglobal=0] [L913] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L921] 0 int i = __VERIFIER_nondet_int(); VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L922] 0 pthread_t id; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L923] 0 pthread_mutex_t *m = &mutex1; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L924] COND TRUE 0 \read(i) VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L924] 0 m = &mutex2 VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L925] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=0] [L916] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1, myglobal+1=26, myglobal=myglobal+1=25] [L916] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1, myglobal+1=26, myglobal=myglobal+1=25] - UnprovableResult [Line: 927]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 925]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 18.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 720.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 238.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 70.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 52 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=3, InterpolantAutomatonStates: 11, 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: 12.0ms SsaConstructionTime, 75.0ms SatisfiabilityAnalysisTime, 142.0ms InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:06:31,740 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...