/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 -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:43:31,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:43:31,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:43:31,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 07:43:31,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 07:43:31,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 07:43:31,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 07:43:31,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 07:43:31,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 07:43:31,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 07:43:31,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 07:43:31,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 07:43:31,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 07:43:31,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 07:43:31,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 07:43:31,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 07:43:31,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 07:43:31,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 07:43:31,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 07:43:31,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 07:43:31,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 07:43:31,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 07:43:31,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 07:43:31,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 07:43:31,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 07:43:31,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:43:31,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:43:31,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:43:31,115 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 [2021-06-13 07:43:31,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:43:31,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:43:31,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:43:31,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:43:31,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:43:31,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:43:31,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:43:31,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:43:31,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:43:31,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:43:31,139 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:43:31,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:43:31,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:43:31,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:43:31,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:43:31,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:43:31,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:43:31,452 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:43:31,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-06-13 07:43:31,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681db7527/fc2a581c260a47d6844b9da87f86ea57/FLAG5c1fdd624 [2021-06-13 07:43:32,106 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:43:32,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-06-13 07:43:32,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681db7527/fc2a581c260a47d6844b9da87f86ea57/FLAG5c1fdd624 [2021-06-13 07:43:32,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681db7527/fc2a581c260a47d6844b9da87f86ea57 [2021-06-13 07:43:32,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:43:32,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:43:32,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:43:32,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:43:32,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:43:32,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:32,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daebd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32, skipping insertion in model container [2021-06-13 07:43:32,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:32,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:43:32,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:43:32,661 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 07:43:32,837 WARN L224 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] [2021-06-13 07:43:32,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:43:32,863 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:43:32,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 07:43:32,914 WARN L224 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] [2021-06-13 07:43:32,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:43:32,978 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:43:32,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32 WrapperNode [2021-06-13 07:43:32,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:43:32,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:43:32,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:43:32,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:43:32,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:32,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:43:33,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:43:33,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:43:33,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:43:33,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (1/1) ... [2021-06-13 07:43:33,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:43:33,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:43:33,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:43:33,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:43:33,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (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 [2021-06-13 07:43:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-13 07:43:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:43:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-13 07:43:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:43:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:43:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:43:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-13 07:43:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-13 07:43:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:43:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:43:33,095 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 07:43:33,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:43:33,440 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-06-13 07:43:33,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:43:33 BoogieIcfgContainer [2021-06-13 07:43:33,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:43:33,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:43:33,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:43:33,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:43:33,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:43:32" (1/3) ... [2021-06-13 07:43:33,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11419bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:43:33, skipping insertion in model container [2021-06-13 07:43:33,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:43:32" (2/3) ... [2021-06-13 07:43:33,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11419bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:43:33, skipping insertion in model container [2021-06-13 07:43:33,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:43:33" (3/3) ... [2021-06-13 07:43:33,453 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-06-13 07:43:33,461 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:43:33,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 07:43:33,462 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:43:33,489 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,489 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,489 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,490 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,493 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,495 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,495 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:43:33,503 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-13 07:43:33,525 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 07:43:33,553 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:43:33,553 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:43:33,553 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:43:33,553 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:43:33,553 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:43:33,554 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:43:33,554 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:43:33,554 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == threadThread1of1ForFork0======== [2021-06-13 07:43:33,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,610 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-06-13 07:43:33,610 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-13 07:43:33,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-06-13 07:43:33,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 61 transitions, 125 flow [2021-06-13 07:43:33,651 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-06-13 07:43:33,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:43:33,651 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:43:33,652 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, 1, 1] [2021-06-13 07:43:33,652 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:43:33,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:43:33,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1483348482, now seen corresponding path program 1 times [2021-06-13 07:43:33,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:43:33,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59600653] [2021-06-13 07:43:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:43:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 07:43:33,817 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 07:43:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 07:43:33,849 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 07:43:33,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 07:43:33,882 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 07:43:33,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:43:33,883 INFO L301 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was UNSAFE (1/3) [2021-06-13 07:43:33,886 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 07:43:33,887 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:43:33,887 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:43:33,887 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:43:33,887 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:43:33,887 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:43:33,887 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:43:33,888 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:43:33,888 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:43:33,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,898 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-06-13 07:43:33,898 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-13 07:43:33,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-06-13 07:43:33,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 07:43:33,899 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 07:43:33,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:43:33,900 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/3) [2021-06-13 07:43:33,900 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 07:43:33,902 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:43:33,902 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:43:33,902 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:43:33,902 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:43:33,902 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:43:33,902 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:43:33,902 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:43:33,902 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread======== [2021-06-13 07:43:33,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,912 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-06-13 07:43:33,913 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-13 07:43:33,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 3/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-06-13 07:43:33,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 68 transitions, 144 flow [2021-06-13 07:43:33,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 07:43:33,914 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 07:43:33,914 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:43:33,914 INFO L301 ceAbstractionStarter]: Result for error location thread was SAFE (3/3) [2021-06-13 07:43:33,915 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 07:43:33,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 07:43:33 BasicIcfg [2021-06-13 07:43:33,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 07:43:33,952 INFO L168 Benchmark]: Toolchain (without parser) took 1457.62 ms. Allocated memory was 127.9 MB in the beginning and 183.5 MB in the end (delta: 55.6 MB). Free memory was 91.4 MB in the beginning and 123.6 MB in the end (delta: -32.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,953 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 127.9 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:43:33,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.50 ms. Allocated memory is still 127.9 MB. Free memory was 91.2 MB in the beginning and 89.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.37 ms. Allocated memory is still 127.9 MB. Free memory was 89.2 MB in the beginning and 87.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,958 INFO L168 Benchmark]: Boogie Preprocessor took 18.75 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 85.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,958 INFO L168 Benchmark]: RCFGBuilder took 409.32 ms. Allocated memory was 127.9 MB in the beginning and 183.5 MB in the end (delta: 55.6 MB). Free memory was 85.8 MB in the beginning and 158.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,959 INFO L168 Benchmark]: TraceAbstraction took 507.55 ms. Allocated memory is still 183.5 MB. Free memory was 157.6 MB in the beginning and 123.6 MB in the end (delta: 34.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2021-06-13 07:43:33,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 127.9 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 483.50 ms. Allocated memory is still 127.9 MB. Free memory was 91.2 MB in the beginning and 89.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.37 ms. Allocated memory is still 127.9 MB. Free memory was 89.2 MB in the beginning and 87.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.75 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 85.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 409.32 ms. Allocated memory was 127.9 MB in the beginning and 183.5 MB in the end (delta: 55.6 MB). Free memory was 85.8 MB in the beginning and 158.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 507.55 ms. Allocated memory is still 183.5 MB. Free memory was 157.6 MB in the beginning and 123.6 MB in the end (delta: 34.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 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 for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 23.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 334.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 73.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred 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: 15.2ms SsaConstructionTime, 62.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 12.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...