/usr/bin/java -Xmx16000000000 -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 -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 03:00:49,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 03:00:49,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 03:00:49,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 03:00:49,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 03:00:49,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 03:00:49,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 03:00:49,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 03:00:49,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 03:00:49,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 03:00:49,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 03:00:49,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 03:00:49,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 03:00:49,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 03:00:49,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 03:00:49,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 03:00:49,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 03:00:49,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 03:00:49,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 03:00:49,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 03:00:49,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 03:00:49,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 03:00:49,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 03:00:49,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 03:00:49,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 03:00:49,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 03:00:49,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 03:00:49,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 03:00:49,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 03:00:49,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 03:00:49,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 03:00:49,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 03:00:49,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 03:00:49,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 03:00:49,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 03:00:49,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 03:00:49,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 03:00:49,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 03:00:49,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 03:00:49,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 03:00:49,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 03:00:49,719 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 [2021-03-11 03:00:49,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 03:00:49,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 03:00:49,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 03:00:49,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 03:00:49,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 03:00:49,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 03:00:49,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 03:00:49,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 03:00:49,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 03:00:49,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 03:00:49,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 03:00:49,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 03:00:50,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 03:00:50,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 03:00:50,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 03:00:50,054 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 03:00:50,054 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 03:00:50,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-03-11 03:00:50,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00d62aff/e020e9f5d781438da6193c60be38cee0/FLAG2fa991a24 [2021-03-11 03:00:50,501 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 03:00:50,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-03-11 03:00:50,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00d62aff/e020e9f5d781438da6193c60be38cee0/FLAG2fa991a24 [2021-03-11 03:00:50,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d00d62aff/e020e9f5d781438da6193c60be38cee0 [2021-03-11 03:00:50,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 03:00:50,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 03:00:50,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 03:00:50,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 03:00:50,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 03:00:50,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 03:00:50" (1/1) ... [2021-03-11 03:00:50,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b63e986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:50, skipping insertion in model container [2021-03-11 03:00:50,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 03:00:50" (1/1) ... [2021-03-11 03:00:50,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 03:00:50,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 03:00:51,073 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 03:00:51,246 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-03-11 03:00:51,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 03:00:51,265 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 03:00:51,277 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 03:00:51,301 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-03-11 03:00:51,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 03:00:51,371 INFO L208 MainTranslator]: Completed translation [2021-03-11 03:00:51,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51 WrapperNode [2021-03-11 03:00:51,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 03:00:51,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 03:00:51,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 03:00:51,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 03:00:51,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 03:00:51,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 03:00:51,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 03:00:51,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 03:00:51,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... [2021-03-11 03:00:51,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 03:00:51,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 03:00:51,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 03:00:51,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 03:00:51,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 03:00:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-11 03:00:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-11 03:00:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 03:00:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 03:00:51,478 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 03:00:51,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 03:00:51,803 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-11 03:00:51,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:00:51 BoogieIcfgContainer [2021-03-11 03:00:51,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 03:00:51,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 03:00:51,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 03:00:51,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 03:00:51,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 03:00:50" (1/3) ... [2021-03-11 03:00:51,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff9c27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:00:51, skipping insertion in model container [2021-03-11 03:00:51,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 03:00:51" (2/3) ... [2021-03-11 03:00:51,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff9c27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:00:51, skipping insertion in model container [2021-03-11 03:00:51,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:00:51" (3/3) ... [2021-03-11 03:00:51,810 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-03-11 03:00:51,815 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 03:00:51,818 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 03:00:51,819 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 03:00:51,837 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,837 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,838 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,839 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,839 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,839 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,839 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,840 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,840 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,840 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,840 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,841 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,841 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,841 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,842 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,843 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,843 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,843 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,843 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,843 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 03:00:51,848 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 03:00:51,862 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 03:00:51,877 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 03:00:51,877 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 03:00:51,877 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 03:00:51,877 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 03:00:51,877 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 03:00:51,878 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 03:00:51,878 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 03:00:51,878 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 03:00:51,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 138 flow [2021-03-11 03:00:51,914 INFO L129 PetriNetUnfolder]: 3/64 cut-off events. [2021-03-11 03:00:51,914 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 03:00:51,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 3/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2021-03-11 03:00:51,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 65 transitions, 138 flow [2021-03-11 03:00:51,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 58 transitions, 119 flow [2021-03-11 03:00:51,934 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-03-11 03:00:51,934 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 03:00:51,935 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:00:51,935 INFO L255 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] [2021-03-11 03:00:51,936 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 03:00:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:00:51,940 INFO L82 PathProgramCache]: Analyzing trace with hash -887786378, now seen corresponding path program 1 times [2021-03-11 03:00:51,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:00:51,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282340849] [2021-03-11 03:00:51,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:00:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 03:00:52,096 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 03:00:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 03:00:52,145 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 03:00:52,179 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 03:00:52,180 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 03:00:52,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 03:00:52,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:00:52 BasicIcfg [2021-03-11 03:00:52,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 03:00:52,226 INFO L168 Benchmark]: Toolchain (without parser) took 1362.76 ms. Allocated memory is still 348.1 MB. Free memory was 311.8 MB in the beginning and 257.6 MB in the end (delta: 54.3 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,227 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 348.1 MB. Free memory was 329.6 MB in the beginning and 329.6 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 03:00:52,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.62 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 312.1 MB in the end (delta: -872.0 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.54 ms. Allocated memory is still 348.1 MB. Free memory was 312.1 MB in the beginning and 310.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,229 INFO L168 Benchmark]: Boogie Preprocessor took 17.49 ms. Allocated memory is still 348.1 MB. Free memory was 310.0 MB in the beginning and 308.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,231 INFO L168 Benchmark]: RCFGBuilder took 383.53 ms. Allocated memory is still 348.1 MB. Free memory was 308.9 MB in the beginning and 284.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,232 INFO L168 Benchmark]: TraceAbstraction took 419.54 ms. Allocated memory is still 348.1 MB. Free memory was 284.8 MB in the beginning and 257.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 03:00:52,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 348.1 MB. Free memory was 329.6 MB in the beginning and 329.6 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 498.62 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 312.1 MB in the end (delta: -872.0 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.54 ms. Allocated memory is still 348.1 MB. Free memory was 312.1 MB in the beginning and 310.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.49 ms. Allocated memory is still 348.1 MB. Free memory was 310.0 MB in the beginning and 308.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 383.53 ms. Allocated memory is still 348.1 MB. Free memory was 308.9 MB in the beginning and 284.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 419.54 ms. Allocated memory is still 348.1 MB. Free memory was 284.8 MB in the beginning and 257.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={11:0}] [L698] 0 pthread_cond_t cond; VAL [cond={13:0}, lock={11:0}] [L699] 0 int x; VAL [cond={13:0}, lock={11:0}, x=0] [L709] 0 pthread_t t; VAL [cond={13:0}, lock={11:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 307.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 42.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.9ms SsaConstructionTime, 81.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! Received shutdown request...