/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:21:29,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:21:29,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:21:29,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:21:29,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:21:29,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:21:29,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:21:29,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:21:29,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:21:29,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:21:29,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:21:29,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:21:29,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:21:29,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:21:29,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:21:29,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:21:29,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:21:29,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:21:29,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:21:29,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:21:29,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:21:29,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:21:29,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:21:29,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:21:29,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:21:29,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:21:29,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:21:29,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:21:29,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:21:29,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:21:29,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:21:29,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:21:29,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:21:29,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:21:29,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:21:29,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:21:29,837 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-FA-SemanticLbe.epf [2019-12-18 19:21:29,866 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:21:29,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:21:29,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:21:29,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:21:29,868 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:21:29,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:21:29,868 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:21:29,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:21:29,869 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:21:29,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:21:29,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:21:29,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:21:29,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:21:29,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:21:29,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:21:29,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:21:29,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:21:29,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:21:29,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:21:29,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:21:29,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:21:29,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:21:29,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:21:29,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:21:30,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:21:30,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:21:30,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:21:30,166 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:21:30,167 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:21:30,167 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2019-12-18 19:21:30,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e2285a4/1eb4225b6e014e36ba552acdda6d1754/FLAG3df85535d [2019-12-18 19:21:30,796 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:21:30,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2019-12-18 19:21:30,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e2285a4/1eb4225b6e014e36ba552acdda6d1754/FLAG3df85535d [2019-12-18 19:21:31,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e2285a4/1eb4225b6e014e36ba552acdda6d1754 [2019-12-18 19:21:31,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:21:31,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:21:31,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:21:31,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:21:31,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:21:31,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d845bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31, skipping insertion in model container [2019-12-18 19:21:31,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:21:31,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:21:31,345 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-12-18 19:21:31,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:21:31,654 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:21:31,669 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-12-18 19:21:31,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:21:31,808 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:21:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31 WrapperNode [2019-12-18 19:21:31,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:21:31,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:21:31,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:21:31,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:21:31,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:21:31,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:21:31,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:21:31,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:21:31,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (1/1) ... [2019-12-18 19:21:31,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:21:31,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:21:31,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:21:31,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:21:31,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (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 [2019-12-18 19:21:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 19:21:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:21:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-18 19:21:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:21:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:21:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 19:21:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-12-18 19:21:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-12-18 19:21:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:21:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:21:31,956 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:21:32,335 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:21:32,336 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-18 19:21:32,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:21:32 BoogieIcfgContainer [2019-12-18 19:21:32,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:21:32,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:21:32,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:21:32,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:21:32,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:21:31" (1/3) ... [2019-12-18 19:21:32,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbf6811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:21:32, skipping insertion in model container [2019-12-18 19:21:32,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:21:31" (2/3) ... [2019-12-18 19:21:32,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbf6811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:21:32, skipping insertion in model container [2019-12-18 19:21:32,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:21:32" (3/3) ... [2019-12-18 19:21:32,345 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2019-12-18 19:21:32,356 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:21:32,356 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:21:32,364 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:21:32,365 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:21:32,388 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,389 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,389 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,389 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,390 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,390 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,390 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,391 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,391 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,392 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,396 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,396 WARN L315 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,396 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,397 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,397 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,397 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:21:32,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 19:21:32,434 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:21:32,434 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:21:32,434 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:21:32,434 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:21:32,434 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:21:32,434 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:21:32,435 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:21:32,435 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:21:32,447 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions [2019-12-18 19:21:32,449 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions [2019-12-18 19:21:32,484 INFO L126 PetriNetUnfolder]: 3/54 cut-off events. [2019-12-18 19:21:32,485 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:21:32,491 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 3/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 6/56 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-18 19:21:32,492 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions [2019-12-18 19:21:32,510 INFO L126 PetriNetUnfolder]: 3/54 cut-off events. [2019-12-18 19:21:32,510 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:21:32,511 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 3/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 6/56 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-18 19:21:32,513 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 260 [2019-12-18 19:21:32,514 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:21:33,842 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-12-18 19:21:34,288 WARN L192 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2019-12-18 19:21:34,470 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-12-18 19:21:34,472 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-18 19:21:34,472 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2019-12-18 19:21:34,476 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions [2019-12-18 19:21:34,484 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2019-12-18 19:21:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-12-18 19:21:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-18 19:21:34,493 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:21:34,494 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-18 19:21:34,494 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:21:34,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:21:34,501 INFO L82 PathProgramCache]: Analyzing trace with hash 215854, now seen corresponding path program 1 times [2019-12-18 19:21:34,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:21:34,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812833862] [2019-12-18 19:21:34,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:21:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:21:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:21:34,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:21:34,703 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:21:34,707 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [189] [189] ULTIMATE.startENTRY-->L701-1: Formula: (let ((.cse3 (store |v_#valid_41| 0 0))) (let ((.cse4 (store .cse3 |v_~#lock~0.base_34| 1))) (let ((.cse2 (store .cse4 |v_~#cond~0.base_21| 1)) (.cse0 (select |v_#memory_int_41| |v_~#lock~0.base_34|)) (.cse1 (select |v_#memory_int_41| |v_~#cond~0.base_21|))) (and (= 0 (select .cse0 (+ |v_~#lock~0.offset_34| 12))) (= 0 (select .cse0 (+ |v_~#lock~0.offset_34| 16))) (= (store |v_#pthreadsMutex_43| |v_~#lock~0.base_34| (store (select |v_#pthreadsMutex_43| |v_~#lock~0.base_34|) |v_~#lock~0.offset_34| 0)) |v_#pthreadsMutex_42|) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 24))) (= |v_ULTIMATE.start_main_~#t~0.offset_18| 0) (= 0 (select .cse2 |v_ULTIMATE.start_main_~#t~0.base_20|)) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 8))) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 12))) (= (store |v_#memory_int_41| |v_ULTIMATE.start_main_~#t~0.base_20| (store (select |v_#memory_int_41| |v_ULTIMATE.start_main_~#t~0.base_20|) |v_ULTIMATE.start_main_~#t~0.offset_18| 0)) |v_#memory_int_40|) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 4))) (= (select .cse0 |v_~#lock~0.offset_34|) 0) (= |v_#length_28| (store (store (store |v_#length_30| |v_~#lock~0.base_34| 24) |v_~#cond~0.base_21| 48) |v_ULTIMATE.start_main_~#t~0.base_20| 4)) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 16))) (= (select .cse3 |v_~#lock~0.base_34|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 |v_~#cond~0.offset_21|) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 20))) (= |v_#valid_39| (store .cse2 |v_ULTIMATE.start_main_~#t~0.base_20| 1)) (= 0 (select .cse4 |v_~#cond~0.base_21|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t~0.base_20|) (< |v_#StackHeapBarrier_15| |v_~#lock~0.base_34|) (= |v_#NULL.offset_5| 0) (= v_~x~0_34 0) (= 0 (select .cse0 (+ |v_~#lock~0.offset_34| 4))) (= 0 (select .cse0 (+ |v_~#lock~0.offset_34| 8))) (< |v_#StackHeapBarrier_15| |v_~#cond~0.base_21|) (= 0 (select .cse1 (+ |v_~#cond~0.offset_21| 28))) (= 0 |v_~#lock~0.offset_34|) (= (select .cse1 |v_~#cond~0.offset_21|) 0) (= 0 |v_#NULL.base_5|))))) InVars {#pthreadsMutex=|v_#pthreadsMutex_43|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_41|, #memory_int=|v_#memory_int_41|, #length=|v_#length_30|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_42|, ~#lock~0.base=|v_~#lock~0.base_34|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_8|, ~#cond~0.offset=|v_~#cond~0.offset_21|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_29, ULTIMATE.start_main_~#t~0.offset=|v_ULTIMATE.start_main_~#t~0.offset_18|, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_23|, #NULL.base=|v_#NULL.base_5|, ~#cond~0.base=|v_~#cond~0.base_21|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#t~mem7=|v_ULTIMATE.start_main_#t~mem7_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_10|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_40|, ~#lock~0.offset=|v_~#lock~0.offset_34|, ULTIMATE.start_main_~#t~0.base=|v_ULTIMATE.start_main_~#t~0.base_20|, #length=|v_#length_28|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[#pthreadsMutex, ~#lock~0.base, ULTIMATE.start_main_#t~nondet5, ~#cond~0.offset, #NULL.offset, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~#t~0.offset, ULTIMATE.start_main_#t~post6, #NULL.base, ~#cond~0.base, ULTIMATE.start_main_#t~mem7, ULTIMATE.start_main_#res, #valid, #memory_int, ~#lock~0.offset, ULTIMATE.start_main_~#t~0.base, #length, ~x~0] because there is no mapped edge [2019-12-18 19:21:34,708 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [187] [187] threadENTRY-->threadErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (let ((.cse0 (select |v_#pthreadsMutex_39| |v_~#lock~0.base_32|))) (and (= v_threadThread1of1ForFork0_~arg.base_7 |v_threadThread1of1ForFork0_#in~arg.base_7|) (not (= v_~x~0_32 42)) (= (store |v_#pthreadsMutex_39| |v_~#lock~0.base_32| (store .cse0 |v_~#lock~0.offset_32| 1)) |v_#pthreadsMutex_38|) (= (select .cse0 |v_~#lock~0.offset_32|) 0) (= |v_threadThread1of1ForFork0_#in~arg.offset_7| v_threadThread1of1ForFork0_~arg.offset_7))) InVars {threadThread1of1ForFork0_#in~arg.offset=|v_threadThread1of1ForFork0_#in~arg.offset_7|, #pthreadsMutex=|v_#pthreadsMutex_39|, ~#lock~0.base=|v_~#lock~0.base_32|, ~#lock~0.offset=|v_~#lock~0.offset_32|, ~x~0=v_~x~0_32, threadThread1of1ForFork0_#in~arg.base=|v_threadThread1of1ForFork0_#in~arg.base_7|} OutVars{threadThread1of1ForFork0_#in~arg.offset=|v_threadThread1of1ForFork0_#in~arg.offset_7|, #pthreadsMutex=|v_#pthreadsMutex_38|, threadThread1of1ForFork0_~arg.base=v_threadThread1of1ForFork0_~arg.base_7, ~#lock~0.base=|v_~#lock~0.base_32|, threadThread1of1ForFork0_~arg.offset=v_threadThread1of1ForFork0_~arg.offset_7, threadThread1of1ForFork0_#t~nondet4=|v_threadThread1of1ForFork0_#t~nondet4_22|, ~#lock~0.offset=|v_~#lock~0.offset_32|, threadThread1of1ForFork0_#t~nondet3=|v_threadThread1of1ForFork0_#t~nondet3_11|, ~x~0=v_~x~0_32, threadThread1of1ForFork0_#in~arg.base=|v_threadThread1of1ForFork0_#in~arg.base_7|} AuxVars[] AssignedVars[#pthreadsMutex, threadThread1of1ForFork0_~arg.base, threadThread1of1ForFork0_~arg.offset, threadThread1of1ForFork0_#t~nondet4, threadThread1of1ForFork0_#t~nondet3] because there is no mapped edge [2019-12-18 19:21:34,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:21:34 BasicIcfg [2019-12-18 19:21:34,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:21:34,725 INFO L168 Benchmark]: Toolchain (without parser) took 3612.29 ms. Allocated memory was 139.5 MB in the beginning and 245.4 MB in the end (delta: 105.9 MB). Free memory was 102.8 MB in the beginning and 153.4 MB in the end (delta: -50.5 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,726 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.86 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 162.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 203.9 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,729 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,730 INFO L168 Benchmark]: RCFGBuilder took 449.95 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 138.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,731 INFO L168 Benchmark]: TraceAbstraction took 2384.64 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 138.4 MB in the beginning and 153.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:21:34,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.86 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 162.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 203.9 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.95 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 138.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2384.64 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 138.4 MB in the beginning and 153.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 56 ProgramPointsBefore, 12 ProgramPointsAfterwards, 55 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 136 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 212 CheckedPairsTotal, 49 TotalNumberOfCompositions - CounterExampleResult [Line: 693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L701] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={3:0}, lock={5:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...